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A335 grade p11 smls pipe,Sa335 grade P91 seamless tube for boiler

A335 grade p11 smls pipe,Sa335 grade P91 seamless tube used for boilers and pressure vessels in high-temperature services.The A355/A355M specification covers nominal wall and minimum wall seamless ferritic alloy-steel pipes.

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In standard ASME SA335/SA355M,besides Sa335 grade P91 seamless tube,also has Sa335 grade P92 seamless tube, Sa335 grade P11 seamless tube, Sa335 grade P22 seamless pipe, Sa335 grade P9 seamless tube, Sa335 grade P2 seamless tube,etc.These seamless boiler pipes SA355 contains higher Chromium,Molybdenum and other alloys.

 

ASTM Standard for reference:

A999/A999M specification for general requirements for alloy and stainless steel pipe

E92 test method for vickers hardness of metallic materials

E570 practice for flux leakage examination of ferromagnetic steel tubular products.

 

sa335 p22 seamless pipe
sa335 p22 seamless pipe
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