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Elite Piping Manufacture Co., Ltd
Elite Piping Manufacture Co., Ltd

Alloy steel pipe is a kind of seamless steel pipe, its performance is much higher than the general seamless steel pipe, because this steel pipe inside containing Cr, high temperature resistance, low temperature, corrosion-resistant performance of other non-pipe joints not match, so the more extensive use of alloy tube in the petroleum, aerospace, chemical, electric power, boiler, military, and other industries.


ASTM A335 is a standard specification for seamless ferritic alloy-steel pipe for high-temperature service. This specification covers nominal wall and minimum wall seamless chrome-molybdenum alloy-steel pipe intended for high-temperature service.

The grades of ASTM A335 include P5, P9, P11, P22, P91, and P92.

ASTM A335: American Society for Testing and Materials
Seamless Alloy-Steel Pipe for High-Temperature Service
Application: Power plant; Chemical Fertilizer; Petrochemicals; Offshore Oils; Gas Productions; Refineries and etc.

Chemical Requirements


Mechanical Properties


Rich production technology, advanced equipment, high automation degree and high production precision, complete molding. As the designated supplier of major energy enterprise groups under the jurisdiction of SASAC, the company has won a number of national and provincial reputations.

Additional information


Alloy Steel


Widely used in Petrochemical, Coal Chemical, Refining, Oil and Gas Transmission, Marine Environment, Power, Heating and Other projects

Size Range

Seamless Series: OD: 1/8″ – 28″; Thickness: SCH10 – SCHXXS
Welded Series: OD: 1/8″ – 28″; Thickness: SCH10 – SCH40

Specifications and Steel Grade

ASTM A335; P5; P9; P11; P22; P91 and P92

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