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





RE: A376 & A312
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.