In petrochemical production units, commonly used chromium molybdenum steel and chromium molybdenum vanadium steel seamless steel pipe standards

GB9948 Seamless Steel Pipe for petroleum Cracking

GB6479 “High pressure Seamless Steel Pipe for Fertilizer Equipment”

GB/T5310 “Seamless steel pipe for high pressure boiler”

GB9948 contains chromium molybdenum steel material grade: 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo and so on.

GB6479 contains chromium molybdenum steel material grade: 12CrMo, 15CrMo, 1Cr5Mo, etc.

GB/T5310 contains chromium molybdenum steel and chromium molybdenum-vanadium steel materials grade: 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, etc.

Seamless Carbon Steel Pipe for High Temperature

Seamless ferritic and austenitic Alloy Steel Tubes for Boilers, superheaters and heat exchangers

ASTM A333 — Seamless and Welded Nominal Steel Tubes for Cryogenic use

ASTM A335 – Seamless ferritic alloy Steel Nominal Pipe for High temperature use

En 10216-2 — Non-alloy and alloy steel tubes with specified high temperature properties

Grade of steel material included in ASTM A106: Gr.B,Gr.C

ASTM A213 includes grades of steel: T11,T12,T22,T23,T91

ASTM A333 / A335M contain steel material mark: P11, P12, P22, P5, P9, P91, P92