Main Products and Standard of Seamless carbon steel tubes

Product

Standard

Commonly Used Steel Grade

International Standard 

Structure Pipe

GB/TB162-1999

10,20,35,40Mn2,
45Mn2,27SiMn,20Cr,
40Cr,20CrMo,35CrMo,38CrMoA1,
50Crv, 30CrMnSi

ASTM A500-98
ASTM A501-98
ASTM A519-96
JISG3441-1988
JISG3444-1994

Pipe for Liquid Transportation

GB/T8163-1999

10,20,09Mnv,16Mn

ASTMA53-98
JISG3452-1988
JISG3454-1988
DIN1629-1984

Oil Casing

API SPEC5CT

J55,K55,N80,P110,C75,
L80,C90,C95,T95,L80S,
N80T,V150

Tubing, Coupling for Oil Field

API SPEC5CT

J55,N80,C90,T95,P110,
M65,80SS

Line Pipe

API SPEC5L

A25,A,B,X42,X46,X52,
X56,X60,X70

High Pressure Boiler Tube

GB5310-1995

20G,20MnG,25MnG,
15MoG,20MoG,12Cr1MoVG,
15CrMoG,12Cr2MoG,12Cr2MoWVTiB,
12Cr3MoVSiTiB,

ASTMA106-97a
ASTMA213-95a
JISG3461-1988
JISG3462-1988
DIN17175-1979
BS3059:Part2:1990