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Hastelloy C-276 Round Bar

Hastelloy C-276 Round Bar is produced for demanding components exposed to severe corrosion and mechanical stress. Its nickel-molybdenum-chromium composition resists wet chlorine, strong acids, chlorides, and oxidizing or reducing media, while offering dependable strength and toughness across a wide range of operating temperatures.
Suitable for machining into shafts, valve stems, fasteners, pump parts, and other precision components, the round bar is widely used in chemical processing, pollution-control equipment, petrochemical systems, marine installations, and power generation. Its resistance to pitting, crevice corrosion, and stress corrosion cracking supports reliable performance and extended service life.

 

 

 

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Product Overview

Hastelloy C-276 Round Bar 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 Round Bar

Hastelloy C-276 Round Bar is produced for demanding components exposed to severe corrosion and mechanical stress. Its nickel-molybdenum-chromium composition resists wet chlorine, strong acids, chlorides, and oxidizing or reducing media, while offering dependable strength and toughness across a wide range of operating temperatures.
Suitable for machining into shafts, valve stems, fasteners, pump parts, and other precision components, the round bar is widely used in chemical processing, pollution-control equipment, petrochemical systems, marine installations, and power generation. Its resistance to pitting, crevice corrosion, and stress corrosion cracking supports reliable performance and extended service life.

 

 

 

Hastelloy C-276 Round Bar
Pipe Specifications

Hastelloy C-276 Round Bar 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, material standard and certification requirements. Nickel-molybdenum-chromium alloy with excellent resistance to pitting and crevice corrosion
Product Form Hot-rolled bar, cold-drawn bar, forged bar or precision-ground bar Select the manufacturing route according to size, tolerance and machining requirements. Round bar supplied in standard or custom dimensions
Diameter Small-diameter rod to large forged round bar Provide the required diameter, unit and dimensional tolerance. Standard and custom diameters available according to drawings
Length Random length, fixed length or cut-to-size pieces Confirm length, cutting tolerance and end preparation requirements. Straight lengths or precision-cut pieces
Applicable Standard ASTM B574, ASME SB574 or project specification Confirm the applicable material, dimensional and heat-treatment standard. ASTM B574 / ASME SB574
Delivery Condition Solution annealed, annealed, hot worked or cold worked Match the condition to strength, machinability and service-temperature requirements. Solution-annealed condition commonly supplied
Surface Finish Black, pickled, peeled, turned, polished or centerless ground Specify the surface finish and tolerance required for machining or direct use. Industrial, machined or precision-ground finish
Inspection & Certification MTC, PMI, chemical analysis, tensile test, hardness test, UT and dimensional inspection Confirm testing, traceability and third-party inspection requirements before quotation. EN 10204 3.1 certificate and full heat traceability available

 

 

 

Standards

Common standards for Hastelloy C-276 Round Bar

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

Product Type Common Standards Typical Use Inspection Notes
Hastelloy C-276 Hot-Finished Round Bar ASTM B574 / ASME SB574 High-corrosion shafts, valve stems, pump components and chemical-processing equipment Verify diameter tolerance, tensile properties, hardness, PMI and heat traceability.
Hastelloy C-276 Cold-Finished Round Bar ASTM B574 / ASME SB574, customer specifications Precision-machined parts, fasteners, instrumentation and pollution-control components Inspect straightness, surface finish, dimensional accuracy, mechanical properties and MTCs.
Hastelloy C-276 Forged Round Bar ASTM B574 / ASME SB574, ASTM B564 / ASME SB564 Forged shafts, rings, pressure components and severe-service equipment Check forging reduction, grain flow, ultrasonic testing, PMI and internal soundness.
Hastelloy C-276 Precision Round Bar ASTM B574 / ASME SB574, customer specifications Precision shafts, machining blanks, valve parts and corrosion-resistant assemblies Confirm diameter, roundness, surface quality, hardness, chemical composition and batch traceability.
Hastelloy C-276 Bar for Fasteners ASTM B574 / ASME SB574, ASTM F468, customer specifications Bolts, studs, nuts and custom fasteners for chemical and marine service Verify tensile and yield strength, threadability, PMI, hardness and material certificates.

 

 

 

Chemical Composition

Hastelloy C-276 Round Bar 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 round bar 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 bar machinability.
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 Round Bar

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 round bar 690 MPa min reference 283 MPa min reference 40% min reference Common selection reference for machining, fabrication, and severe corrosion-resistant service.
Solution annealed Hastelloy C-276 round bar By ASTM / ASME specification By ASTM / ASME specification By ASTM / ASME specification Selected for improved corrosion resistance, dimensional stability, and weldability.
Cold-drawn Hastelloy C-276 round bar By diameter, temper, and purchase specification By diameter, temper, and purchase specification Lower than annealed condition Cold working increases strength and hardness while reducing ductility.
Custom Hastelloy C-276 round bar By customer requirement and applicable standard By customer requirement and applicable standard By customer requirement and applicable standard Confirm diameter tolerance, surface finish, heat treatment, testing, 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 Round Bar

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

Hastelloy C-276 Round Bar is used for shafts, valve parts, pump components, fasteners, chemical processing equipment, pollution-control systems and components exposed to severe corrosive media.

Common standards include ASTM B574 and ASME SB574 for nickel alloy C-276 rod and bar. Products can also be supplied according to ASTM, ASME, AMS or customer project specifications.

Hastelloy C-276 Round Bar is available in various diameters with hot-finished, cold-drawn, forged, peeled, bright, polished or ground surfaces according to the required application.

Yes. Hastelloy C-276 Round Bar can be machined with rigid equipment, sharp carbide tools, controlled cutting speeds and adequate cooling to minimize work hardening.

Documentation may include heat traceability, chemical composition, tensile and hardness results, PMI, dimensional inspection and surface examination reports according to the purchase order.

Please provide the bar diameter, length, quantity, manufacturing condition, surface finish, applicable standard, testing or inspection requirements and destination.

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For faster feedback, include OD / NPS, wall thickness or schedule, length, quantity, standard, certificate requirement and destination. If you have a drawing or project specification, send it with the inquiry.

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