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A376 & A312

A376 & A312

A376 & A312

(OP)
Hi
What is the difference between A376 TP321H and A312 TP321H (Seamless pipes) and which one is the most expensive?

RE: A376 & A312

Have you reviewed the scope for each material specification?

A 376 SPECIFICATION FOR SEAMLESS AUSTENITIC STEEL
PIPE FOR HIGH-TEMPERATURE CENTRAL-STATION
SERVICE

1. Scope
1.1 This specification covers seamless austenitic steel
pipe intended for high-temperature central-station service.
Among the grades covered are five H grades and two
nitrogen grades (304N and 316N) that are specifically
intended for high-temperature service.

Seamless pipe and power plant applications

A312 SPECIFICATION FOR SEAMLESS AND WELDED
AUSTENITIC STAINLESS STEEL PIPES

Scope
1.1 This specification covers seamless, straight-seam
welded, and heavily cold worked welded austenitic stainless
steel pipe intended for high-temperature and general
corrosive service.

Seamless or seam welded and general applications


Check with a supplier for cost.

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