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ASTM B462 C276 ( N01276) Hastelloy Alloy Weld Neck Flanges

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ASTM B462 C276 ( N01276) Hastelloy Alloy Weld Neck Flanges

Brand Name : YUHONG

Model Number : ASTM B462 C276 Flange

Certification : ABS, BV, ISO, ASTM, SGS, LR

Place of Origin : CHINA

MOQ : 1PC

Price : Negotiable

Payment Terms : T/T, L/C AT SIGHT

Supply Ability : 10000 pcs per month

Delivery Time : Depends on quantity

Packaging Details : Ply-wooden case / Strong Iron Case Packing

Name : Hastelloy Alloy C276 Long Weld Neck Flanges

Standard : ASTM B462

Material : N10665, N10276, NO6022, NO6035, NO6200, etc.

Testing : UT, PT, MT

Packing : Pallet; Ply-wooden case

Application : Petroleum, chemical, oil&gas

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ASTM B462 C276 ( N01276) Hastelloy Alloy Weld Neck Flanges


ASTM B462 specifies forged or rolled nickel and cobalt alloy flanges for use in corrosive environments. Specifically suitable for Hastelloy flanges:
Hastelloy C276, Alloy C276, or UNS N10276 by its unified numbering system. This material's outstanding corrosion resistance is its most prominent feature. It resists a wide range of chemical media.

Weld Neck Flanges connect to piping systems. Their tapered neck design provides optimal stress distribution, with a smooth transition from the flange ring to the pipe wall, significantly reducing stress concentrations.

They are the preferred type for harsh operating conditions involving high pressures, high temperatures, severe thermal cycling, high vibration, and potential piping bending.




ASTM B462 Hastelloy C276 Flange Nickel Alloy UNS N10276 Weld Neck Flange

STANDARD UNS WNR. AFNOR EN JIS OR GOST
Hastelloy C276 N10276 2.4819 - NiMo16Cr15W NW 0276 ЭП760 ХН65МВУ





Chemical Composition of of ASTM B462 Hastelloy C276 Flange Nickel Alloy UNS N10276 Weld Neck Flange

Hastelloy C276 Ni C Mo Mn Si Fe P S Co Cr
Balance 0.010 max 15.00 – 17.00 1.00 max 0.08 max 4.00 – 7.00 0.04 max 0.03 max 2.5 max 14.50 – 16.50





Mechanical properties (Minimum value at 20℃) of Hastelloy C276 Flange Nickel Alloy UNS N10276 Weld Neck Flange

Tensile Strengthσb/MPa Yield Strengthσp0.2/MPa Elongationσ5 /%
690 283 40




Applications



These flanges are used in harsh environments where there is a significant risk of corrosion, and are commonly found in

Chemical Processing Industries (CPI): Reactors, heat exchangers, piping systems, and those handling halogens, acids, and solvents.

Pollution Control and Flue Gas Desulfurization (FGD) Systems: Treat hot, wet flue gases containing sulfides, chlorides, and fluorides.

Pulp and Paper Industry: Used in chloride and chlorine dioxide environments in digesters and bleaching plants.

Pharmaceutical Industry: Process piping requiring extremely high purity and corrosion resistance.

Waste Treatment: Systems handling hazardous chemical waste and acidic waste streams.

Oil and Gas: Used in the harsh environments of highly acidic oil and gas (containing H₂S and CO₂).

ASTM B462 C276 ( N01276) Hastelloy Alloy Weld Neck Flanges



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