Hastelloy B-3 round bar factory price commonly ranges from approximately USD 55 to 110 per kilogram for standard industrial hot-finished, forged, mill-annealed, or peeled bars purchased in normal production quantities. Cold-drawn, precision-ground, tightly toleranced, specially tested, or small-quantity Hastelloy B-3 round bars may cost approximately USD 75 to 160 per kilogram or more. Hastelloy B-3, also known as Alloy B-3, UNS N10675, and W.Nr. 2.4600, is a nickel-molybdenum alloy developed for highly reducing chemical environments, particularly hydrochloric, hydrobromic, and sulfuric acid service. Its factory price is strongly influenced by its approximately 28.5% molybdenum content, high nickel content, limited production volume, demanding hot-working behavior, solution-annealing requirements, bar diameter, surface finish, tolerance, inspection scope, order quantity, and delivery schedule.
Hastelloy B-3 round bar is a specialized corrosion-resistant material used for shafts, valve stems, pump components, agitator parts, fasteners, reactor hardware, chemical-processing equipment, acid-handling systems, and machined components exposed to strongly reducing environments. It is not normally selected as a general-purpose high-temperature alloy or as a low-cost substitute for stainless steel.
The term “factory price” normally refers to the price offered by a producing mill, forging factory, bar rolling plant, or integrated nickel-alloy processor before international freight, import duty, tax, customs clearance, destination delivery, and local distributor margin. In many cases, a factory quotation is issued on an EXW or FOB basis.
A low factory price is generally available only when the buyer accepts a standard production diameter, normal mill-annealed condition, full bar length, commercial dimensional tolerance, regular production lead time, and the factory’s minimum order quantity. Small cut pieces, non-standard diameters, precision grinding, additional laboratory tests, or urgent production can substantially increase the effective price per kilogram.
| Hastelloy B-3 Round Bar Type | Factory Price Reference | Typical Purchasing Condition |
|---|---|---|
| Hot-finished or hot-rolled bar | USD 55–90/kg | Standard diameter, normal MOQ, mill tolerance, mill-annealed condition |
| Forged round bar | USD 65–120/kg | Large diameter, heavy section, custom forging, or rough-machined blank |
| Annealed and peeled bar | USD 60–105/kg | Cleaner metallic surface and reduced machining allowance |
| Cold-drawn round bar | USD 75–135/kg | Small diameter with improved tolerance and surface finish |
| Precision-ground round bar | USD 90–160/kg | Tight-tolerance shafts, rods, pins, and precision chemical components |
| Specially tested project material | Project quotation | UT, independent chemistry analysis, corrosion testing, or third-party witnessing |
These ranges are budgetary references rather than binding offers. Actual factory prices can be lower or higher depending on raw material markets, origin, melting route, production quantity, diameter, certificate requirements, and delivery terms.
The direct answer is that standard Hastelloy B-3 round bar normally costs approximately USD 55 to 110 per kg at factory level. This range is most applicable to common hot-finished, forged, mill-annealed, or peeled bars ordered in a practical production quantity.
Small-diameter cold-drawn rods, large forged bars, precision-ground products, strict straightness, many short cut pieces, special chemistry verification, third-party inspection, or low-quantity production may increase the price to approximately USD 75 to 160 per kg or more.
| Purchasing Requirement | Budgetary Price | Commercial Explanation |
|---|---|---|
| Standard full-length factory bar | USD 55–100/kg | Normal diameter, factory MOQ, standard MTC, and commercial tolerance |
| Annealed and peeled stock | USD 60–110/kg | Includes scale removal and improved dimensional control |
| Fixed-length cut pieces | USD 65–120/kg | Includes saw cutting, kerf loss, marking, inspection, and repacking |
| Large custom-forged bar | USD 70–135/kg | Includes forging, repeated reheating, annealing, rough turning, and possible UT |
| Precision-ground bar | USD 90–160/kg | Includes peeling, straightening, grinding, and detailed dimensional inspection |
| Prototype or sample quantity | Supplier-specific premium | Processing and documentation costs are distributed over very few kilograms |
An ex-factory price normally excludes international freight, marine insurance, import duty, tax, anti-dumping duty, customs clearance, destination handling, warehouse charges, and delivery to the buyer’s plant.
Cutting, rough machining, precision grinding, PMI, ultrasonic testing, independent laboratory analysis, corrosion testing, EN 10204 3.2 certification, third-party inspection, and special export packing may also be charged separately.
Some online price pages show Hastelloy B-3 at unusually low prices. These numbers may relate to outdated stock, offcuts, mixed product forms, high minimum quantities, material without original certificates, or prices that exclude heat treatment and inspection.
The raw alloy contains approximately 28.5% molybdenum and at least 65% nickel. A price close to or below the calculated alloying-metal value should be reviewed carefully. Buyers should verify the product form, grade, heat number, standard, condition, quantity, country of origin, certificate, and quotation date before treating an online listing as a realistic factory offer.
Hastelloy B-3 is commonly identified as UNS N10675. Its European material number is W.Nr. 2.4600, and a common composition-based designation is NiMo29Cr. The trade name may be written as HASTELLOY B-3, Hastelloy B3, Alloy B-3, or Nickel-Molybdenum Alloy B-3.
UNS N10675 should appear on the quotation, purchase order, material test certificate, product marking, packing label, and inspection reports. A general description such as “Hastelloy round bar” is not sufficient because B-2, B-3, C-22, C-276, and other corrosion-resistant nickel alloys have different compositions and service limitations.
| Designation | Meaning | Purchasing Importance |
|---|---|---|
| Hastelloy B-3 | Common commercial alloy name | Frequently used in inquiries and technical drawings |
| Alloy B-3 | Generic product description | Commonly used by mills and stock suppliers |
| UNS N10675 | Unified Numbering System designation | Primary international material identifier |
| W.Nr. 2.4600 | European material number | Common on European specifications and certificates |
| NiMo29Cr | Composition-based European designation | Highlights the nickel-molybdenum alloy system |
| Standard | General Product Coverage | Buyer Consideration |
|---|---|---|
| ASTM B335 | Nickel-molybdenum alloy rod, bar, and wire | Primary ASTM specification for Hastelloy B-3 bar |
| ASME SB335 | ASME-adopted rod, bar, and wire specification | Frequently requested for pressure-related projects |
| ASTM B564 | Nickel alloy forgings and forging stock | Relevant to forged blanks, flanges, rings, and components |
| ASME SB564 | ASME-adopted forging specification | Used for selected pressure-component forgings |
| DIN 17744 | Nickel-molybdenum alloy wrought products | May appear on European technical documents |
| EN 10204 3.1 | Inspection certificate type | Common certificate requirement for industrial orders |
| Property | Typical Reference | Commercial Relevance |
|---|---|---|
| Density | Approximately 9.22 g/cm³ | Used to calculate bar weight and order value |
| Melting range | Approximately 1370–1418°C | Relevant to melting and hot-working control |
| Typical bar hardness | About 92 HRB in solution-annealed condition | Affects machining method and tooling |
| Primary alloy type | Nickel-molybdenum corrosion-resistant alloy | Designed mainly for reducing acid environments |
Hastelloy B-3 is principally a nickel-molybdenum alloy. Nickel forms the corrosion-resistant matrix, while the high molybdenum content provides exceptional resistance to hydrochloric acid and many other reducing chemical environments.
Small controlled additions of chromium, iron, tungsten, manganese, cobalt, and other elements are used to improve structural stability, processing behavior, and resistance to the formation of undesirable intermediate phases.
| Element | Nominal Content or Limit | Main Function or Control Reason |
|---|---|---|
| Nickel | 65.0% minimum | Forms the corrosion-resistant nickel-base matrix |
| Molybdenum | Approximately 28.5% | Provides strong resistance to hydrochloric and other reducing acids |
| Chromium | Approximately 1.5% | Supports structural stability and selected corrosion behavior |
| Iron | Approximately 1.5% | Used as a controlled minor addition to improve alloy stability |
| Tungsten | 3.0% maximum | Controlled alloying element contributing to corrosion performance |
| Manganese | 3.0% maximum | Controlled processing-related element |
| Cobalt | 3.0% maximum | Controlled residual or minor constituent |
| Aluminum | 0.50% maximum | Controlled deoxidizing and residual element |
| Titanium | 0.20% maximum | Controlled minor element |
| Silicon | 0.10% maximum | Kept low for corrosion resistance and weld quality |
| Carbon | 0.01% maximum | Kept very low to reduce carbide-related corrosion and welding concerns |
| Niobium | 0.20% maximum | Controlled residual element |
| Vanadium | 0.20% maximum | Controlled minor element |
| Copper | 0.20% maximum | Controlled residual element |
| Tantalum | 0.20% maximum | Controlled residual element |
| Zirconium | 0.01% maximum | Controlled trace element |
The MTC should report the actual heat analysis of the supplied material. Buyers should confirm nickel, molybdenum, chromium, iron, carbon, silicon, tungsten, cobalt, and other controlled elements against the applicable standard.
Handheld PMI is useful for verifying nickel and molybdenum and distinguishing B-3 from common stainless steels or nickel-chromium alloys. It does not reliably measure carbon, sulfur, or every trace element. PMI should therefore support, rather than replace, the original mill certificate and heat analysis.
Nickel and molybdenum account for most of the raw material value of Hastelloy B-3. The alloy contains at least 65% nickel and approximately 28.5% molybdenum, leaving only a small proportion for other elements.
Nickel is the base component of the alloy. Changes in the nickel market affect new melting cost, alloy surcharge, inventory replacement value, and quotation validity.
Finished B-3 bar costs substantially more than the nickel portion alone. The factory must also pay for molybdenum, other alloying elements, controlled melting, billet production, forging or rolling, solution annealing, quenching, surface processing, inspection, production loss, financing, labor, and energy.
Molybdenum is the most important price differentiator for Hastelloy B-3. Its approximately 28.5% content is much higher than the molybdenum level in Inconel 625 and many common corrosion-resistant alloys.
Molybdenum is a high-value alloying material, and its market can move independently of nickel. A sharp molybdenum increase can raise B-3 factory prices even when nickel remains stable.
A simple weighted calculation of nickel and molybdenum gives only a theoretical alloying-metal value. It does not include melting recovery, scrap adjustment, refining, conversion, forging loss, scale, test samples, end discard, heat treatment, inspection, or profit.
B-3 has a relatively narrow hot-working window and is produced in smaller market volumes than widely used grades such as Inconel 625 or Hastelloy C-276. These processing and availability factors add a significant premium above the theoretical metal value.
| Cost Component | Relative Influence | Why It Matters |
|---|---|---|
| Nickel | Very high | Represents at least 65% of the composition |
| Molybdenum | Extremely high | Represents approximately 28.5% and is a high-value raw material |
| Controlled melting | High | Required to control chemistry, cleanliness, and structural stability |
| Forging and rolling | High | Narrower hot-working range requires careful process control |
| Solution annealing | Medium to high | Required to restore optimum corrosion resistance and ductility |
| Limited production volume | High | Reduces economies of scale and stock availability |
Diameter affects both the manufacturing route and price per kilogram. Medium diameters are normally the most economical because they can be produced by regular forging or rolling routes. Small rods require more drawing and finishing, while large diameters need heavier forging equipment and longer heat-treatment cycles.
| Diameter Range | Factory Price Reference | Typical Manufacturing Route |
|---|---|---|
| 3–10 mm | USD 100–170/kg | Cold drawn, repeatedly annealed, straightened, polished, or ground |
| 12–20 mm | USD 80–145/kg | Cold drawn, peeled, ground, or small hot-finished bar |
| 22–80 mm | USD 55–105/kg | Common forged, hot-finished, or peeled production range |
| 85–150 mm | USD 65–120/kg | Forged, solution-annealed, and often rough-turned bar |
| 160–250 mm | USD 75–145/kg | Custom forged, rough machined, solution annealed, and frequently UT-tested |
| Above 250 mm | Custom factory quotation | Project-specific billet, forging, heat treatment, machining, and inspection |
| Diameter | Approximate Weight per Meter | Purchasing Meaning |
|---|---|---|
| 20 mm | About 2.90 kg/m | Low total weight, but small-diameter processing raises unit price |
| 50 mm | About 18.1 kg/m | Common machining size with comparatively stable pricing |
| 100 mm | About 72.4 kg/m | High total value and heavier cutting requirements |
| 200 mm | About 290 kg/m | Usually forged and may require UT, heavy lifting, and special packing |
The weights are approximate and calculated using a nominal density of 9.22 g/cm³. Actual invoice weight should be based on measured dimensions or verified scale weight.
A smaller diameter does not automatically produce a lower price per kilogram. Small B-3 rods require more manufacturing operations for each kilogram of finished product. Large bars are expensive for a different set of reasons involving forging capacity, heat treatment, and inspection.
| Small-Bar Cost Factor | Effect on Factory Price |
|---|---|
| Multiple drawing reductions | Add tooling, lubrication, machine time, and setup cost |
| Intermediate annealing | May be needed because the alloy work-hardens readily |
| Surface cleaning | Required between forming and finishing operations |
| Precision straightening | Adds processing time and dimensional inspection |
| Centerless grinding | Adds finishing cost and reduces usable material yield |
| Small production batch | Spreads setup, furnace, testing, and documentation costs over fewer kilograms |
| Large-Bar Cost Factor | Effect on Factory Price |
|---|---|
| Large billet requirement | Raises raw material commitment and factory MOQ |
| Narrow forging range | Requires close temperature control and frequent reheating |
| Long solution-annealing cycle | Requires larger furnace capacity and full-section heating |
| Rapid cooling requirement | Large sections require suitable quenching equipment and handling |
| Rough turning | Removes scale and surface imperfections but reduces finished yield |
| Ultrasonic inspection | Adds inspection cost and possible rejection risk |
Round bars between approximately 22 mm and 80 mm generally offer the best balance of factory efficiency, availability, processing yield, and unit price. The exact economical range varies by mill and available billet size.
The manufacturing route directly changes the Hastelloy B-3 factory price. A hot-finished black bar and a centerless-ground h7 bar with strict straightness are not commercially equivalent products.
Hot-finished bar is normally the most economical option for general machining blanks. It may have surface scale, broader diameter tolerance, and more machining allowance than peeled or ground material.
B-3 is more sensitive to strain and strain rate during hot working than common austenitic stainless steels. Controlled reductions and frequent reheating are required, which makes hot processing more demanding than the product description may suggest.
Forged bar is used for larger diameters, heavy shafts, reactor hardware, valve components, and custom machining blanks. Price depends on billet size, forging reduction, number of reheats, final dimensions, heat treatment, rough turning, and UT requirements.
Cold drawing improves diameter tolerance, surface finish, straightness, and mechanical strength. B-3 work-hardens more readily than many austenitic stainless steels, so multiple drawing stages and intermediate annealing may be required.
Cold-worked material may need final solution annealing to restore optimum stress-corrosion and fabrication behavior, especially when cold deformation is significant.
Precision-ground bar is used for pump shafts, valve stems, pins, agitator components, instrument parts, and corrosion-resistant assemblies requiring controlled diameter, roundness, straightness, and surface roughness.
| Bar Condition | Factory Price Reference | Main Advantage | Main Cost Addition |
|---|---|---|---|
| Hot finished | USD 55–90/kg | Most economical general machining blank | Standard tolerance and limited finishing |
| Forged | USD 65–120/kg | Large diameter and heavy-section capability | Forging, reheating, annealing, rough turning, and UT |
| Cold drawn | USD 75–135/kg | Improved tolerance, straightness, and surface condition | Drawing stages, intermediate annealing, and inspection |
| Peeled or turned | USD 60–105/kg | Cleaner surface and reduced machining allowance | Surface removal and dimensional control |
| Precision ground | USD 90–160/kg | Tight diameter and smooth finished surface | Grinding, straightening, inspection, and protective packing |
Wrought Hastelloy B-3 products are normally supplied in the mill-annealed condition unless otherwise specified. This solution-annealing procedure is intended to optimize corrosion resistance and ductility.
B-3 is not a precipitation-hardening alloy. Heat treatment is used to dissolve undesirable phases, restore the proper gamma structure, recover ductility after working, and maintain corrosion resistance.
A typical annealing temperature is approximately 1066°C. Water quenching is normally advised, while rapid air cooling may be feasible for thin sections. Holding time depends on section thickness, furnace loading, and mill procedure.
Large round bars require more time for the center of the section to reach the required temperature. They also need effective rapid cooling to avoid extended exposure within temperature ranges where undesirable intermetallic phases can form.
Material should normally be re-annealed after hot forming to restore optimum corrosion resistance and ductility. The factory price of a forged bar therefore usually includes at least one final solution-annealing operation.
Cold working can affect resistance to stress-corrosion cracking. When substantial cold deformation is applied, solution annealing may be required before subsequent welding or fabrication.
This requirement raises the price of cold-drawn and precision-finished products because the bar may need drawing, annealing, straightening, and final grinding in a carefully planned sequence.
| Heat-Treatment Requirement | Purpose | Factory Cost Effect |
|---|---|---|
| Standard mill annealing | Provides normal corrosion resistance and ductility | Usually included in compliant mill production |
| Re-annealing after forging | Restores optimum microstructure after hot working | Adds furnace, quenching, handling, and inspection cost |
| Intermediate annealing during drawing | Restores ductility between cold-reduction stages | Can add several furnace and handling cycles |
| Final solution annealing after cold work | Restores corrosion and fabrication performance | Adds furnace cost and may require final straightening |
| Customer-specific thermal cycle | Meets a project-defined metallurgical requirement | Project-specific and may require qualification |
Nickel-molybdenum B-type alloys can form undesirable intermediate phases during exposure to certain intermediate temperatures. B-3 has improved structural stability compared with B-2, but correct heating and rapid cooling remain important.
A lower-priced bar with uncertain heat-treatment history may have reduced ductility or corrosion performance. Buyers should confirm the delivery condition and heat-treatment record rather than assuming all N10675 bars are metallurgically equivalent.
Standard or available stock sizes normally offer lower prices and shorter lead times than custom production. However, B-3 is not stocked as widely as C-276, Inconel 625, or common stainless steels.
Available material can reduce MOQ, setup cost, raw material price exposure, and production lead time. A buyer may obtain a lower total cost by selecting the next larger available diameter and machining it to final size.
Custom production may require dedicated billet allocation, forging, rolling, drawing, solution annealing, peeling, grinding, UT, laboratory testing, and certificate preparation. The factory may calculate the price using gross production weight rather than the buyer’s final net weight.
| Comparison Item | Stock or Regular Size | Custom Size |
|---|---|---|
| Price per kg | Usually lower | Usually higher |
| MOQ | May allow one full bar or available cut pieces | May require a complete forging, rolling, or drawing batch |
| Lead time | Shorter after certificate approval | Longer because of production and testing |
| Dimensional flexibility | Limited to available inventory | Can be produced closer to the machining size |
| Manufacturing yield | Generally more efficient | May involve higher end loss, scale, and setup scrap |
| Certification | Limited to original stock documentation | Can be planned for a project-specific specification |
A custom near-net-size forged bar may cost more per kilogram but reduce turning time and expensive alloy scrap. This is particularly relevant for large B-3 components because the material has a high density and high raw material value.
Buyers should compare gross bar weight, machining allowance, tool consumption, scrap value, production lead time, and the number of finished components obtainable from each starting size.
Surface condition, diameter tolerance, straightness, roundness, ovality, and surface roughness can add a substantial premium to the Hastelloy B-3 factory price.
| Surface Condition | Typical Characteristics | Relative Cost |
|---|---|---|
| Hot-finished black surface | Scale present and machining allowance required | Lowest |
| Descaled or pickled | Scale removed for inspection or fabrication | Low to medium |
| Peeled or rough turned | Clean metallic surface and improved diameter control | Medium |
| Polished | Improved surface smoothness and appearance | Medium to high |
| Precision ground | Tight diameter, roundness, straightness, and roughness control | Highest |
Standard ASTM or commercial mill tolerance is normally the lowest-cost option. Tight tolerances such as h11, h9, h8, h7, or customer-specific ground dimensions require additional material allowance, processing, and inspection.
Strict straightness requirements are important for long pump shafts, valve stems, rods, and rotating components. Heat treatment can cause dimensional movement, so straightening may be required after solution annealing and again after grinding.
Precision components may require numerical limits for roundness, ovality, and surface roughness. A general request for “bright bar” does not define these acceptance criteria.
| Dimensional Requirement | Lower-Cost Option | Higher-Cost Option |
|---|---|---|
| Diameter | Standard mill tolerance | h9, h8, h7, or drawing-specific ground tolerance |
| Straightness | Commercial straightness | Strict deviation per meter with inspection report |
| Roundness | Hot-finished or peeled condition | Precision-ground roundness requirement |
| Surface roughness | Commercial peeled surface | Specified Ra after grinding or polishing |
| Surface defects | Commercially acceptable imperfections | Fully machined or defect-free surface requirement |
The base bar price does not necessarily include value-added services. Buyers should request an itemized quotation when cutting, machining, special inspection, or expanded certification is required.
Saw cutting charges include machine time, blade wear, kerf loss, measurement, deburring, heat-number transfer, inspection, and repacking. Many short pieces normally have a higher effective price per kilogram than a full-length bar.
Hastelloy B-3 work-hardens during machining and has relatively low thermal conductivity compared with many steels. It requires rigid machines, sharp tools, stable feed, appropriate cutting speed, and effective coolant.
Machining services may include rough turning, facing, chamfering, center drilling, deep drilling, milling, threading, peeling, and precision grinding. Prices may be calculated by piece, machine hour, removed material, or finished drawing.
Standard factory supply normally includes an MTC containing heat analysis and the mechanical properties required by the specification. Additional testing may include PMI, independent laboratory chemistry, UT, hardness testing, tensile testing, macrostructure examination, grain-size evaluation, corrosion testing, or third-party witnessing.
EN 10204 3.1 certification is commonly requested for industrial projects. EN 10204 3.2 certification, independent inspection, customer witnessing, manufacturing procedure records, and project-specific document packages add cost and delivery time.
| Additional Service | Typical Cost Effect | Main Cost Reason |
|---|---|---|
| Single saw cut | Low | Basic machine time, blade wear, and measurement |
| Many fixed-length pieces | Medium | Repeated cutting, marking, inspection, and individual packing |
| Rough turning | Medium | Machine time, tool wear, and material removal |
| Precision machining | High | Slow cutting rates, work hardening, and tight tolerance |
| PMI testing | Low to medium | Major alloying-element verification and report preparation |
| Ultrasonic testing | Medium to high | Internal-quality examination, calibration, and reporting |
| Corrosion testing | High | Laboratory preparation, controlled exposure, and reporting |
| Third-party inspection | Medium to high | Inspector fees, coordination, witnessing, and document review |
| EN 10204 3.2 certification | High | Independent validation and expanded documentation |
The MTC should identify UNS N10675, the applicable standard, heat number, actual chemistry, product dimensions, delivery condition, and required mechanical properties. The heat number on the certificate should match the bar marking and packing label.
When a full bar is cut into several pieces, identification should be transferred to every piece or maintained through an approved traceability system.
Factory price is closely connected to production quantity. The mill must consider billet size, forging campaign, heat-treatment furnace load, testing lot, process yield, and production scheduling.
Regular batch orders generally receive better pricing because setup, furnace, inspection, documentation, and packing costs are distributed over more kilograms.
A larger quantity does not always guarantee a lower immediate price if the order requires new melting during a period of rising molybdenum prices. Existing stock and new production may have different cost bases.
MOQ depends on diameter and production route. A standard bar available from existing semi-finished stock may have a relatively low MOQ. A custom large forging may require a complete billet. A special cold-drawn diameter may require a full drawing batch.
| Supply Situation | MOQ Direction | Commercial Effect |
|---|---|---|
| Available full bar | One bar or factory-defined minimum | Short lead time and limited setup cost |
| Regular factory diameter | Moderate production quantity | Better production efficiency and unit price |
| Custom cold-drawn diameter | Drawing-batch quantity | Tooling, annealing, and setup raise cost |
| Large custom forging | Based on full billet input weight | Gross production weight can exceed final ordered weight |
| Special chemistry or test lot | May require a dedicated production batch | High laboratory, segregation, and documentation cost |
Ready stock or available semi-finished billet can shorten delivery. New production may involve raw material procurement, melting, billet preparation, forging or rolling, solution annealing, quenching, straightening, surface processing, UT, laboratory testing, certificate approval, and packing.
Because Hastelloy B-3 is less commonly produced than C-276 or Inconel 625, unusual sizes may require a longer production schedule. Urgent delivery may involve priority production, subcontracted machining, expedited testing, or air freight.
Both nickel and molybdenum markets influence replacement cost. Molybdenum can have a particularly strong effect because of its high percentage in B-3. Factories may therefore issue quotations with limited validity.
| Price Factor | More Economical Situation | Higher-Cost Situation |
|---|---|---|
| Quantity | Full bars or regular production batch | Sample, prototype, or several small pieces |
| MOQ | Suitable billet or bar is available | Dedicated forging, rolling, or drawing batch required |
| Lead time | Normal factory schedule | Priority production and expedited shipment |
| Raw material market | Stable nickel and molybdenum prices | Rapidly rising or volatile molybdenum market |
| Price validity | Short validity based on current costs | Long fixed validity requiring risk coverage |
Hastelloy B-2, B-3, and C-276 are all corrosion-resistant nickel alloys, but they are designed for different chemical environments and have different availability. Price rankings can change according to diameter, stock, production quantity, and origin.
| Alloy | Budgetary Standard Bar Price | Main Cost Reason | Main Application Direction |
|---|---|---|---|
| Hastelloy B-2 | Approximately USD 50–100/kg | High nickel and approximately 28% molybdenum | Hydrochloric acid and strongly reducing chemical environments |
| Hastelloy B-3 | Approximately USD 55–110/kg | High nickel, approximately 28.5% molybdenum, and limited production volume | Reducing acids with improved thermal and structural stability |
| Hastelloy C-276 | Approximately USD 45–105/kg | Nickel, chromium, molybdenum, and tungsten composition | Broad oxidizing and reducing chemical environments and chloride attack |
B-3 is usually priced slightly above or close to B-2. Both contain very high molybdenum, but B-3 uses modified minor-element control and small chromium and iron additions to improve structural stability.
B-2 can form undesirable intermetallic phases relatively quickly during exposure to certain intermediate temperatures. B-3 was developed to reduce this sensitivity, making fabrication, welding, and transient thermal exposure less problematic.
The price difference should be evaluated against fabrication risk. A slightly lower B-2 material price may not reduce the total project cost if welding, heat treatment, or service exposure creates a greater risk of embrittlement or corrosion loss.
B-3 and C-276 prices frequently overlap. C-276 has a more complex nickel-chromium-molybdenum-tungsten composition, but it is also more widely produced and stocked. A standard C-276 bar can therefore sometimes cost less than an uncommon B-3 size.
B-3 is generally stronger in pure hydrochloric acid and other strongly reducing acid environments where oxidizing contamination is limited. C-276 offers broader resistance to both oxidizing and reducing media and has strong resistance to chloride-induced pitting, crevice corrosion, and stress-corrosion cracking.
Hastelloy B-3 has limited resistance to strongly oxidizing environments because of its low chromium content. Ferric ions, cupric ions, dissolved oxygen, hypochlorites, chlorine, or other oxidizing contaminants can significantly change corrosion behavior.
C-276 may be the safer choice when the chemical stream contains variable oxidizing contamination. B-3 may be the stronger and more economical choice when the medium is reliably reducing and hydrochloric-acid resistance is the controlling requirement.
The buyer should provide acid type, concentration, temperature, pressure, impurity level, dissolved oxygen, oxidizing-ion content, flow rate, and expected shutdown conditions. A corrosion test or specialist material review may be justified for critical equipment.
How much is Hastelloy B-3 round bar per kilogram?
Standard industrial Hastelloy B-3 round bar commonly costs approximately USD 55 to 110 per kg at factory level. Forged, cold-drawn, precision-ground, tightly toleranced, specially tested, small-quantity, or custom-size bars may cost approximately USD 75 to 160 per kg or more. Final pricing depends on diameter, quantity, manufacturing route, heat treatment, surface finish, tolerance, inspection, MOQ, raw material prices, and delivery terms.
Why is Hastelloy B-3 round bar so expensive?
Hastelloy B-3 contains at least 65% nickel and approximately 28.5% molybdenum. Molybdenum is a high-value alloying element, and B-3 is produced in smaller volumes than many common nickel alloys. Its narrow hot-working range, repeated reheating requirements, solution annealing, rapid cooling, low production yield, special machining, and quality testing further increase the factory price.
Is Hastelloy B-3 more expensive than B-2 and C-276?
Hastelloy B-3 is normally priced close to or slightly above B-2 because it offers improved structural stability. Its price can be higher or lower than C-276 depending on stock availability, diameter, origin, and order quantity. Although C-276 contains more chromium and tungsten, it is more widely produced and stocked, so common C-276 sizes can sometimes cost less than specialized B-3 bars. The correct alloy should be selected according to the actual corrosion environment rather than price alone.
More from this category
Incoloy 825 bar price depends on the nickel-based alloy composition, bar dimensions, manufacturing route, heat-treatment condition, surface finish, in...
Incoloy 800HT bar price is shaped by nickel, chromium, titanium, and aluminum raw-material costs, together with bar dimensions, heat-treatment conditi...
Incoloy 20 round bar price per kg depends on the alloy composition, bar size, manufacturing method, surface finish, tolerance, certificates, inspectio...
Hastelloy G-30 N06030 bar factory price is determined by the alloy’s high nickel, chromium, iron, molybdenum, copper, and tungsten content, together...
English English 
Korean
Arabic
Spanish
German
Portuguese
French
Russian
Italian
Vietnamese
