Hastelloy C276 Welded Tube

Hastelloy C276 welded tube is a nickel-based alloy renowned for its comprehensive corrosion resistance. Hastelloy n10276 with a nickel matrix, achieving a perfect balance of corrosion resistance and mechanical properties through a carefully designed composition. Our manufacturers can produce hastelloy n10276 seamless and welded pipes to meet industry requirements. Contact us market@htpipe.com for more information and a free quote!

 

alloy c276 welded pipe chemical composition 

Hastelloy C276 welded tube alloy chemically comprises nickel (Ni) ≥57%, chromium (Cr) 14.5-16.5%, molybdenum (Mo) 15-17%, tungsten (W) 3-4.5%, and a strictly controlled iron (Fe) content of 4-7%.

 

Hastelloy C276 welded tube mechanical properties

Tensile strength ≥690 MPa, yield strength ≥275 MPa, elongation ≥40%, and hardness ≤100 HRB. These properties enable it to withstand the impact loads of high-pressure fluids while also offering excellent processability and formability.

 

alloy n10276 pipe Corrosion Resistance

Hastelloy C276 welded tube is known as the "universal corrosion-resistant alloy." It offers excellent corrosion resistance to most corrosive media, including wet chlorine, various oxidizing chlorides, chloride solutions, sulfuric acid, and oxidizing salts.

 

ASTM B619 UNS N10276 Welded Pipe Specification

Standard	ASTM, ASME, JIS, AISI, AMS, EN, SAE, DIN, NF, TOCT, DS, DTD, GB
Size	4 to 219mm W. T.: 0.5 to 20mm
Schedule	SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Length	Single Random, Double Random, Standard & Cut length Pipe
Finish	Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF, NO.1, NO.4, 2B, BA, HL, 8K, Mirror finish, etc
Form	Round, Square, Hollow, Rectangular, Hydraulic, Coiled, Straight Pipes, "U" Shape, Pan Cake Coils, etc.
Type	ERW / EFW / Welded / Fabricated
End	Plain End, Beveled End, Treaded Pipe, Screwed ends

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uns n10276 Welded Pipe Manufacturing Process

• The core process begins with vacuum melting, utilizing a dual VIM (vacuum induction melting) and VAR (vacuum arc remelting) process. This precisely controls the chemical composition, particularly the levels of impurities such as carbon and silicon, eliminating inclusions and ensuring a uniform microstructure, laying the foundation for high-purity material.

 

• Hot extrusion is performed. The round bar is heated to a plastic state and forced through a ring die under high pressure to form a seamless tube billet. This step requires extremely stringent temperature and speed control.

 

• During the cold working, the Hastelloy C276 welded tube billet undergoes multiple passes of cold rolling or cold drawing, combined with intermediate solution annealing, to gradually achieve the target dimensions and surface finish, significantly improving strength and dimensional accuracy.

 

• Welding is a key process in welded pipe manufacturing. High-energy beam welding methods such as plasma welding (PAW) or laser beam welding (LBW) are used, along with inert gas shielding, to prevent compositional segregation in the weld area.

hastelloy n10276 pipe Installation and Maintenance Precautions

• Support spacing should be calculated based on the pipe diameter and medium density to prevent vibration fatigue.
• When connecting to carbon steel flanges, Hastelloy C276 welded tube is recommended to use insulating gaskets to prevent galvanic corrosion.
• Regularly inspect the pipe surface to detect and address signs of corrosion.
• When cleaning, use an appropriate cleaning agent to avoid introducing harmful substances such as chloride ions.

 

 

 

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