Introduction

Hastelloy C276 is a nickel-molybdenum-chromium alloy with outstanding corrosion resistance in severe environments. It resists pitting, stress corrosion cracking, and oxidizing atmospheres up to high temperatures. The low carbon content prevents carbide precipitation during welding, maintaining excellent corrosion resistance in the as-welded condition. As a leading Hastelloy C276 manufacturer and supplier, MONO Group provides a complete range of nickel alloy round bar, sheet, plate, tube, pipe, fittings, and flanges for demanding applications. This Hastelloy C276 is widely used in chemical processing, pollution control, pulp and paper production, and marine applications.

Chemical components(%)

Mechanical properties

Physical properties

Hastelloy C276 Available Products and Standard

1. ASTM B575 (Standard Specification for Hastelloy C276 Alloy Plate, Sheet, and Strip)

Type: Sheet/Strip/Plate

Size Range:

• Hastelloy C276 Sheet / Plate: 0.5 – 180 mm thick (cold rolled or hot rolled)

• Hastelloy C276 Strip: 0.01 – 5.0 mm thick × 5 – 500 mm wide

Surface: Annealed, Bright, Pickled, Ground

Testing: Chemical analysis, mechanical test (tensile, yield, elongation), intergranular corrosion test, hardness test, dimensional inspection

2. ASTM B574 (Standard Specification for Hastelloy C276 Alloy Rod and Bar)

Type: Bar/Wire/Round bar

Size Range:

• Hastelloy C276 Bar: 8 – 355 mm dia (hot rolled or cold drawn)

• Hastelloy C276 Wire: 0.01 – 15.0 mm dia (coils or straight)

Surface: Annealed, Bright, Pickled, Ground

Testing: Chemical analysis, mechanical test (tensile, yield, elongation), hardness test, corrosion test, dimensional inspection

3. ASTM B622 (Seamless Pipe & Tube) / ASTM B619 (Welded Pipe)

Type: Seamless tube//Welded pipe/Fittings

Size Range: 

• Hastelloy C276 Seamless Tube: OD 6 – 273 mm

• Hastelloy C276 Welded Pipe: OD up to 610 mm

Surface: Annealed, Pickled

Testing: Flattening test, hydrostatic test, eddy current test, chemical analysis, mechanical test

Advantages

(1)Outstanding corrosion resistance in aggressive environments: Hastelloy C276 nickel alloy withstands oxidizing and reducing media including wet chlorine, hypochlorite, and ferric chloride, outperforming stainless steel and other nickel alloys.

(2)Excellent resistance to pitting and crevice corrosion: Hastelloy C276 seamless tube and pipe maintain integrity in chloride rich seawater, brine, and flue gas desulfurization systems, eliminating localized attack risks.

(3)Superior stress corrosion cracking resistance: Hastelloy C276 round bar and plate resist SCC in hot chloride and hydrogen sulfide environments, ideal for sour gas and petrochemical processing applications.

(4)Good high temperature stability up to 1000°C: Hastelloy C276 sheet and strip retain mechanical properties and oxidation resistance in furnace components and chemical reactors, while remaining readily weldable.

(5)Excellent fabricability with low carbon content: Hastelloy C276 welding wire and filler rod enable field repair and fabrication without sensitization or intergranular attack, even in as-welded condition.

Applications

(1)Chemical processing and petrochemical equipment – Hastelloy C276 reactor and heat exchanger are widely used for distillation columns, evaporators, and scrubbers handling hydrochloric acid, sulfuric acid, and chlorine gas.

(2)Flue gas desulfurization systems – Hastelloy C276 plate and bar serve in absorber towers, ductwork, and slurry piping for coal fired power plants requiring superior pitting and erosion corrosion resistance.

(3)Oil and gas sour service – Hastelloy C276 seamless tube and pipe are specified for downhole tubing, wellhead components, and subsea flow lines in high H₂S and CO₂ environments.

(4)Marine and seawater applications – Hastelloy C276 fittings and flanges resist crevice corrosion in offshore platforms, desalination plants, and shipboard exhaust scrubbers.

(5)Pharmaceutical and specialty chemical reactors – Hastelloy C276 sheet and wire mesh are applied in batch reactors, pressure vessels, and catalyst baskets requiring corrosion resistant nickel alloys for high purity production.

MONO Group is one of Superalloy, Nickel alloy, high Temperature alloy manufacturer&Supplier&Wholesaler from China,We supply high-quality alloy plates, sheets, round bars, tubes, pipes, fittings, flanges, and custom parts in accordance with ASTM, ASME, DIN, ISO, GB, and other international standards. For inquiries or to request a quote , please freely contact us at info@monokj.com.