Longitudinal Seam Welded Steel Pipe (LSAW/ERW)

Common standards for Welde carbon steel pipes

Common Grades

Main Application

Steel Pipe for Fluid Service

GB/T 14291

Q195、Q215、Q235

d pipe for mine fluid sevice

GB/T 3091

Q195、Q215、Q235

Welded pipe for low pressure fluid service

SY/T 5037

L245 (Gr.b), L290 (X42), L360 (X52), L415 (X60), L450 (X65), L485 (X70), L555 (X80)

Spirally submerged arc welded steel pipe for pipelines for low pressure fluid service

ASTM A53

Gr.A, Gr.B, Gr.C

Black and hot-hipped galvanized welded and seamless steel pipe

BS EN10217-1

P195TR1，P235TR1

Welded steel tubes for pressure purposes – Technical delivery conditions – Part 1: Electric welded and arc welded non-alloy steel tubes with specified room temperature properties

BS EN10217-2

P265TR1，P295TR1

Welded steel tubes for pressure purposes – Technical delivery conditions – Part 2: Electric welded and arc welded non-alloy steel tubes with specified elevated temperature properties

Steel Pipe for Ordinary Structure

GB/T 13793

Q195、Q215、Q235、Q355B

Longitudinally electric resistance welded steel pipe

SY/T 5040

L245 (Gr.b), L290 (X42)，L360 (X52), L415 (X60)

Spirally submerged arc welded steel pipe piles

ASTM A252

Gr. 1,Gr. 2,Gr. 3

Welded and seamless steel pipe piles

BS EN10219-1

S235JRH,S355J2H,S460NH

Cold formed welded structural hollow sections of non-alloy and fine grain steels – part1: Technical delivert conditions

Line Pipe

GB/T 9711.1

(≈PSL1)L210(Gr.a),L245 (Gr.b), L290 (X42), L360 (X52), L415 (X60)

Steel pipe for pipeline transportation system of petroleum and natural gas industries(Class A steel pipe)

GB/T 9711.2

(≈PSL2)L245NB,L415 N(X60), L450 N(X65), L485N (X70), L555N (X80)

Steel pipe for pipeline transportation system of petroleum and natural gas industries(Class B steel pipe)

API 5L PSL1/2

Gr.a,Gr.b, X42/52/60/65/70/80

Line pipe

Casing

API 5CT/ ISO 11960 PSL1

H40, J55,K55

Steel pipe for use as casing or tubing for wells of petroleum and natural gas industries