In productione petrochemical unitates, vulgo chromium molybdenum chalybeum adhibitum, et chromium molybdenum vanadium chalybem inconsutilem fistulae ferreae signa

GB9948 Seamless Steel Pipe for PETROLEUM Cracking

GB6479 "Pressura Seamless Steel Pipe ad stercorat Equipment"

GB/T5310"Seamless chalybe pipe pro princeps pressura boiler"

GB9948Chromium molybdaeum continet gradus materiae ferro: 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo et cetera.

GB6479continet chromium molybdenum ferro materiae gradus: 12CrMo, 15CrMo, 1Cr5Mo, etc.

GB/T5310 continet chromium molybdenum chalybem et chromium molybdaeno-vanadium ferro materiae gradus: 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, etc.

Seamless Carbon Steel Pipe for High Temperature

Inconsutilem ferriticum et austeniticum Admisce Ferro Tubuli pro Boilers, superheatris et caloris nummulariis

ASTM A333 - Seamless et iuncta Nominal Ferro Tubuli pro Cryogenico usu

ASTM A335- Seamless ferritic mixturae Steel Nominal Pipe ad caliditas usu

En 10216-2 - Tubuli ferri non-mixtura et mixturae caliditas proprietatibus specificatis

Gradus materiae ferri in ASTM A106: Gr.B,Gr.C

ASTM A213includit gradus ferri: T11, T12, T22, T23, T91

ASTM A333 / A335M continent ferrum materiale signum: P11, P12, P22, P5, P9, P91, P92