Specifications

China Standard

Steel Grade

Standard

seamless steel tubes

and pipes

for structural purpose

GB/T8162-1999

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

ASTM A500-98
ASTM A501-98
ASTN A519-98
JIS G3441-1994
JIS G3444-1994

Seamless steel tubes and pipes for

liquid service

GB/T8163-1999

10, 20, Q295, Q345

ASTM A53-98
ASTM A192
ASME S192
JIS G3452-1998
FIS G3454-1998
DIN 1629-1984

seamless steel tubes

and pipesfor casing

API SPEC 5CT

J55, N80

API

Seamless steel tubes for

oil casing and

tubing in oil wells

APE SPEC 5L

A, B, X42

API

Seamles Steel Tubes

and Pipes for

High Pressure Boiler

GB5310-1995

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

ASTM A106-96a
ATSM A213-95a
JIS G3461-1988
JIS G3462-1998
DIN 17175-1979
BS3059Part 21990

Seamless Steel Tubes

for low and Medium Pressure Boilers

GB3087-1999

10, 20

ASTM A179, ASTM A192
ASTM SA179,SA192,
BS3059

Seamless Steel Tubes

 for high pressure --Chemical fertilizer equipment

GB6479-86

10, 20G, Q345, Q390, 10MoVNb, 12CrMo, 15CrMo, 12Cr2Mo

ISO 9329-2-1997
ASTM A161-94

Seamless steel tubes

for petroleum cracking

GB9948-86

10, 20, 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo,  

JIS G3441-1988