Contact
E-mail us
Table of Content
Preston Alloys is a prominent supplier and exporter of nickel alloys for high-performance applications. We have a full range of Hastelloy B3 sheet, plate, and coil in stock and can supply custom-cut UNS N10675 plate to your exact project requirements. They offer consistent material availability and demanding quality certification of mill test to specialist fabricators.
Hastelloy B3 sheets, plates, and coils have good resistance to hydrochloric acid and reducing chemical conditions where standard nickel alloys fail. Alloy B3 products are ASTM B575 and UNS N10675 certified and resistant to heat cycling without embrittlement.
Hastelloy B3 is a nickel-molybdenum alloy engineered to resist hydrochloric acid at nearly all concentrations and temperatures, along with sulfuric, acetic, and other non-oxidizing acids. Sheet, plate, and coil forms of this alloy cover different fabrication needs across the same base chemistry. Sheet stock under 6mm thickness suits pressed components and smaller vessel sections, while plate handles structural reactor walls and heavy pressure vessel construction up to 100mm. Coil form supplies continuous strip for roll-forming operations where fabricators need long, uninterrupted lengths without weld seams. The alloy replaced Hastelloy B2 in most new builds because it resists grain boundary precipitation during welding, cutting the post-weld heat treatment burden that B2 fabrication historically required. UNS N10675 designates this chemistry under ASTM specifications.
Preston Alloys supplies Hastelloy B3 sheet, plate and coil for quick dispatch in typical thickness ranges to reduce the delivery time for fabricators ordering from mill suppliers. We export to chemical processing and petrochemical buyers in a number of countries, with documentation provided for quick customs clearance on arrival. Each heat lot is fully traceable to verified mill test reports, offering engineers the composition and mechanical property data they need for code stamped vessel production. Custom cutting, slitting, and sizing services minimise on-site fabrication work. Competitive pricing means direct sourcing relationships, not mark-ups through numerous layers of distribution. Technical specialists are on hand to answer your questions about alloy choices before you commit to an order.
Preston Alloys supplies Hastelloy B3 sheet, plate and coil for quick dispatch in typical thickness ranges to reduce the delivery time for fabricators ordering from mill suppliers. We export to chemical processing and petrochemical buyers in a number of countries, with documentation provided for quick customs clearance on arrival. Each heat lot is fully traceable to verified mill test reports, offering engineers the composition and mechanical property data they need for code stamped vessel production. Custom cutting, slitting, and sizing services minimise on-site fabrication work. Competitive pricing means direct sourcing relationships, not mark-ups through numerous layers of distribution. Technical specialists are on hand to answer your questions about alloy choices before you commit to an order.
Each heat lot undergoes chemical composition analysis confirming nickel, molybdenum, and tungsten content against ASTM B575 limits before release. Mechanical testing verifies tensile strength, yield strength, and elongation on samples from every batch. Ultrasonic testing screens plate stock for internal defects that visual inspection would miss. Surface finish inspection catches rolling defects on sheet and coil before packaging. Positive Material Identification confirms alloy grade on individual pieces prior to shipment, preventing mix-ups between similar nickel alloy grades stocked in the same facility.
| Standard | ASTM B333 / ASME SB333 |
| Material Grade | Hastelloy B3 (UNS N10675, W.Nr. 2.4600) |
| Size | 1000 mm x 2000 mm, 1220 mm x 2440 mm, 1500 mm x 3000 mm, 2000 mm x 2000 mm, 2000 mm x 4000 mm |
| Thickness Range | 0.3 to 1200 mm or as required |
| Length | 2000 mm to 6000 mm (cut-to-size available) |
| Hastelloy Plate Technique | Hot Rolled, Cold Rolled, Forged |
| Hardness | Soft, hard, half hard, spring hard (as required) |
| Form | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Strip, Flats, Blank (Circle) |
| Packing | Packed in Wooden Boxes, Bubble wraps, Steel Strips Bundled, or as per Customers Requests |
| Testing and Documents | Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports |
| Size (Inches) | Size (mm) |
| .125 | 3.18 |
| .134 | 3.40 |
| .156 | 3.96 |
| .187 | 4.75 |
| .250 | 6.35 |
| .312 | 7.92 |
| .375 | 9.53 |
| .500 | 12.7 |
| .625 | 15.9 |
| .750 | 19.1 |
| .875 | 22.2 |
| 1 | 25.4 |
| 1.125 | 28.6 |
| 1.250 | 31.8 |
| 1.500 | 38.1 |
| 1.750 | 44.5 |
| 2 | 50.8 |
| 2.500 | 63.5 |
| 3 | 76.2 |
Preston Alloys stocks four primary product forms of this alloy, each suited to different stages of fabrication and equipment design.
Hastelloy B3 Sheets
Thin-gauge stock from 0.5mm to 6mm, used for pressed vessel heads, baffles, and lightweight equipment linings where forming operations demand flexibility without cracking.
Hastelloy B3 Plates
Heavier stock from 6mm to 100mm thickness for reactor shells, pressure vessel walls, and structural components carrying direct chemical exposure under load.
Hastelloy B3 Shim Sheets & Strips
Continuous strip supplied in coil form for roll-forming and tube-making operations, cutting material waste compared to ordering multiple flat sheet lengths.
Hastelloy B3 Coils
Precision-thickness stock under 0.5mm for gasket applications, spacer components, and instrumentation parts requiring tight dimensional tolerance in corrosive service.
Get in touch with us for the best deal on Hastelloy B3 Sheet, Plate and Coil
| Grade | Ni | Mo | Cr | Fe | W | Mn | C | Al | Ti | Si |
| Hastelloy B3 | 65.0 min | 28.5 | 1.5 | 1.5 | 3.0 max | 3.0 max | 0.01 max | 0.50 max | 0.2 max | 10 max |
| Density | 9.2 g/cm³ |
| Melting Point | 1370 °C (2550 °F) |
| Tensile Strength | Psi – 115,000, MPa – 760 |
| Yield Strength (0.2% Offset) | Psi – 52,000, MPa – 350 |
| Elongation | 40% |
| STANDARD | Hastelloy B3 |
| WERKSTOFF NR. | 2.4600 |
| UNS | N10675 |
The chart below lists standard thickness, width, and length combinations we stock. Contact us directly for non-standard dimensions or cut-to-size requirements outside this range.
| Thickness | Width | Length |
| 0.5mm – 3mm | Up to 1250mm | Up to 3000mm |
| 3mm – 6mm | Up to 1500mm | Up to 3000mm |
| 6mm – 25mm | Up to 2000mm | Up to 6000mm |
| 25mm – 100mm | Up to 2000mm | Up to 4000mm |
Buy Hastelloy B3 Cold and Hot Rolled Plate at Best Price in India
Hastelloy B3 sheet stock runs from 0.5mm to 6mm thick, in widths up to 1500mm and lengths to 3000mm. Plate thickness extends from 6mm to 100mm, with widths to 2000mm on request. Coil widths typically run 300mm to 1250mm, depending on the roll-forming line specification. Custom slitting and cut-to-length service is available on both sheet and coil orders, letting fabricators skip in-house cutting steps and reduce scrap on high-volume production runs.
Hydrochloric acid resistance stands out as the primary reason process engineers specify this alloy over standard nickel-copper or nickel-chromium grades. Weldability improved significantly compared to Hastelloy B2, since the lower silicon and carbon content resists the grain boundary carbide precipitation that made B2 welds prone to cracking. Thermal stability up to 800°C reduces the risk of embrittlement during multi-pass welding or post-weld stress relief. Corrosion resistance extends to acetic acid, formic acid, and other reducing organic acids at elevated temperature. The alloy also resists hydrogen-induced cracking, a failure mode that limits some competing alloys in hydrogen processing service. Fabricators get a material that welds cleanly and holds up long-term in aggressive reducing environments.
Chemical Processing Industry
Reactor linings and agitator components handle concentrated hydrochloric acid streams where carbon steel would corrode through in weeks and standard stainless would pit within months.
Petrochemical Industry
Heat exchanger tube sheets and process piping in hydrocracking units resist hydrogen embrittlement under the high-pressure, high-temperature hydrogen exposure common in this service.
Pharmaceutical Industry
Batch reactor vessels and piping systems maintain product purity while resisting acid cleaning cycles between production runs without surface degradation.
Pollution Control Equipment
Scrubber internals and ductwork handle acidic flue gas condensates that form during emissions treatment, resisting corrosion in wet chloride-bearing environments.
Power Generation Industry
Flue gas desulfurization systems use this alloy in absorber towers where hot, acidic slurry would rapidly degrade standard stainless steel components.
B3 resists grain boundary precipitation during welding far better than B2, and offers improved thermal stability up to 800°C without the embrittlement B2 develops.
Yes. Lower carbon and silicon content reduces cracking risk during multi-pass welding compared to B2, and the alloy forms without excessive springback.
Yes. B3 resists intermetallic phase formation between 600°C and 800°C, a temperature range where B2 historically became brittle after extended exposure.
Yes, we offer cut-to-length, slitting, and custom sizing on both sheet and plate stock based on the dimensions your project drawing specifies.