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Hastelloy C-276 Forgings

Hastelloy C-276 Forgings are produced for components that must withstand severe chemical attack and sustained mechanical loads. The alloy’s nickel-molybdenum-chromium composition provides strong resistance to wet chlorine, sulfuric and hydrochloric acids, chlorides, and both oxidizing and reducing environments, while the forged structure supports high integrity and consistent performance.
Used for valve bodies, pump parts, shafts, flanges, pressure components, and custom shapes, these forgings are well suited to chemical processing, pollution-control systems, petrochemical equipment, offshore installations, and power-generation facilities. Their resistance to pitting, crevice corrosion, and stress corrosion cracking helps extend component life in demanding service.

 

 

 

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Product Overview

Hastelloy C-276 Forgings for High-Performance Applications

Explore detailed information for this alloy product, including specifications, applications, supply options and quotation requirements.

Why buyers choose Hastelloy C-276 Forgings

Hastelloy C-276 Forgings are produced for components that must withstand severe chemical attack and sustained mechanical loads. The alloy’s nickel-molybdenum-chromium composition provides strong resistance to wet chlorine, sulfuric and hydrochloric acids, chlorides, and both oxidizing and reducing environments, while the forged structure supports high integrity and consistent performance.
Used for valve bodies, pump parts, shafts, flanges, pressure components, and custom shapes, these forgings are well suited to chemical processing, pollution-control systems, petrochemical equipment, offshore installations, and power-generation facilities. Their resistance to pitting, crevice corrosion, and stress corrosion cracking helps extend component life in demanding service.

 

 

 

Hastelloy C-276 Forgings
Pipe Specifications

Hastelloy C-276 Forgings size range and supply information

Specifications, available sizes and delivery conditions can vary by production route and order requirements. Contact us for current availability.

Item Typical Options Buyer Notes Typical Specification
Material Grade Hastelloy C-276 / UNS N10276 / W.Nr. 2.4819 Confirm the alloy designation, chemical composition and certification requirements. Nickel-molybdenum-chromium alloy for severe corrosive service
Forged Product Type Forged rings, discs, blocks, shafts, hubs, bars or custom components Provide the component type, geometry and finished-machining requirements. Open-die or closed-die forgings available
Dimensions Custom diameter, thickness, length or near-net-shape dimensions Submit drawings or dimensional details with machining allowances. Manufactured according to drawings or project specifications
Forging Process Open-die forging, closed-die forging, ring rolling or upset forging Select the process according to component size, shape and required grain flow. Controlled forging reduction for uniform structure and mechanical properties
Applicable Standard ASTM B564, ASME SB564 or customer specification Confirm the required material, heat-treatment and dimensional standards. ASTM B564 / ASME SB564 compliant forgings
Heat Treatment Solution annealed, annealed or custom heat-treatment cycle Match the heat treatment to strength, corrosion resistance and service temperature. Solution treatment with controlled cooling available
Machining & Surface As-forged, rough machined, finish machined, turned or ground Specify machining allowances, surface roughness and final tolerances. Precision machining available according to drawings
Inspection & Certification MTC, PMI, chemical analysis, tensile test, hardness test, UT, macro-etch testing and dimensional inspection Confirm testing scope, traceability and third-party inspection requirements. EN 10204 3.1 certificate and full heat traceability available

 

 

 

Standards

Common standards for Hastelloy C-276 Forgings

The final standard should follow the purchase order, engineering specification or project drawing.

Product Type Common Standards Typical Use Inspection Notes
Hastelloy C-276 Open-Die Forgings ASTM B564 / ASME SB564, ASTM B462 / ASME SB462 Large shafts, rings, pressure components and severe corrosion-resistant equipment Verify forging reduction, grain flow, dimensions, tensile properties, PMI and ultrasonic testing.
Hastelloy C-276 Closed-Die Forgings ASTM B564 / ASME SB564, ASTM B462 / ASME SB462 Valve bodies, pump components, chemical-processing parts and complex assemblies Inspect die-fill quality, dimensional tolerances, surface condition, mechanical properties and traceability.
Hastelloy C-276 Forged Rings ASTM B564 / ASME SB564, ASTM B462 / ASME SB462 Flanges, seals, pressure vessels, scrubbers and pollution-control equipment Check ring dimensions, grain orientation, ultrasonic inspection, PMI, hardness and material certificates.
Hastelloy C-276 Forged Bars ASTM B574 / ASME SB574, ASTM B564 / ASME SB564 Fasteners, shafts, valve stems and machined components for aggressive environments Verify diameter, straightness, tensile properties, hardness, surface quality and heat traceability.
Hastelloy C-276 Forged Flanges ASTM B564 / ASME SB564, ASME B16.5, ASME B16.47 High-pressure chemical piping, offshore systems and severe-service process equipment Inspect pressure class, facing, bolt-hole pattern, dimensions, PMI, NDT and forging soundness.
Custom Hastelloy C-276 Forgings ASTM B564 / ASME SB564, ASTM B462 / ASME SB462, customer drawings Specialized chemical, pharmaceutical, marine and pollution-control components Review drawings, heat treatment, grain flow, mechanical testing, NDT, PMI and inspection documentation.

 

 

 

Chemical Composition

Hastelloy C-276 Forgings composition reference

Chemical composition is reported by heat on the material test certificate. Use the table below as a material-selection reference.

Element Symbol Typical Requirement Function
Nickel Ni Balance Forms the alloy matrix and provides toughness and broad corrosion resistance.
Molybdenum Mo 15.0-17.0 Enhances resistance to pitting, crevice corrosion, and reducing acids.
Chromium Cr 14.5-16.5 Improves resistance to oxidizing media and localized corrosion.
Iron Fe 4.0-7.0 Provides controlled alloy balance and contributes to forging strength.
Tungsten W 3.0-4.5 Improves localized corrosion resistance and high-temperature strength.
Cobalt Co 2.5 max Controlled residual element in the nickel-based alloy.
Manganese Mn 1.0 max Acts as a deoxidizer during alloy production.
Vanadium V 0.35 max Contributes to strengthening and microstructural stability.
Silicon Si 0.08 max Controlled to maintain ductility, surface quality, and forging performance.
Carbon C 0.010 max Minimized to reduce carbide precipitation and preserve corrosion resistance.
Copper Cu 0.50 max Controlled minor element supporting alloy stability.

 

 

 

Mechanical Properties

Mechanical Properties of Hastelloy C-276 Forgings

Mechanical properties vary by standard, pipe size, production route and heat treatment. Use the specified standard and MTC as the final acceptance basis.

Condition / Product Tensile Strength Yield Strength 0.2% Elongation Notes
Annealed Hastelloy C-276 forgings 690 MPa min reference 283 MPa min reference 40% min reference Common reference condition for chemical-processing, pollution-control, and corrosion-resistant components.
Solution annealed Hastelloy C-276 forgings By ASTM / ASME specification By ASTM / ASME specification By ASTM / ASME specification Provides improved metallurgical consistency and resistance to pitting and stress-corrosion cracking.
Open-die Hastelloy C-276 forgings By forging size, heat treatment, and specification By forging size, heat treatment, and specification By forging size, heat treatment, and specification Specify forging reduction, grain flow, dimensional tolerances, and inspection requirements.
Custom Hastelloy C-276 forgings By design and purchase specification By design and purchase specification By design and purchase specification Confirm shape, weight, heat treatment, NDT requirements, surface condition, and material traceability.

 

 

 

Values shown are reference data for product selection. Purchase orders should define the exact standard, condition, inspection scope and certificate requirement.

Quotation Checklist

Information to confirm for your order

Share your requirements, including material, size, quantity, and specifications, for a fast quotation.

Material

Grade name, UNS number, equivalent grade or project material code.

Pipe Size

OD / NPS, wall thickness or schedule, length, tolerance and quantity.

Standard

ASTM, ASME, EN, DIN, drawing or customer specification.

Condition

Seamless, welded, annealed, solution annealed, pickled or polished.

Inspection

MTC EN10204 3.1, PMI, UT / ET, hydrotest and dimensional report.

Delivery

Destination, packing requirement, shipping method and delivery deadline.

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FAQ

Frequently asked questions about Hastelloy C-276 Forgings

FAQ content helps cover buyer questions and supports SEO for long-tail product searches.

Hastelloy C-276 Forgings are used for valve bodies, flanges, shafts, pump components, pressure equipment, chemical processing machinery, pollution-control systems and severe corrosion environments.

Available products include forged rings, discs, blocks, bars, hubs, shafts, valve parts, flanges and custom near-net-shape forgings made according to customer drawings.

Common standards include ASTM B564 and ASME SB564. Forgings can also be produced according to ASTM, ASME, API, AMS or customer-specific material and dimensional requirements.

Hastelloy C-276 Forgings are generally supplied in the solution-annealed condition. Heat treatment records and customized thermal processing can be provided according to the project specification.

Inspection can include chemical analysis, tensile testing, hardness testing, PMI, dimensional inspection, ultrasonic testing, liquid penetrant testing and visual examination.

Yes. Custom forgings can be produced to customer drawings with specified dimensions, tolerances, machining allowances, surface requirements, markings and inspection plans.

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