Outer diameter

range from 21.3 to 660mm

Wall thickness

Sch10 Sch20 Sch30 Sch40 Sch60 XS SCH80 SCH120 SCH140 Sch160

XXS

Surface treatment

Oil-dip, varnish ,passivation ,Phosphating ,shot Blasting

Inspection and test

Chemical Composition inspection ,Mechanical Properties Test (Tensile Strength, Yield Strength ,Elongation ,Flaring ,Flattening ,Bending ,Hardness ,Impact Test) surface and Dimension Test, NO-destructive Test ,Hydrostatic Test.

Seamless steel pipe for the structure purpose

standards

materials

usage

GB/T8163

ASTM A500-98

ASTM A501-98

ASTN A519-98

JIS G3441-1994

JIS G3444-1994

20# 45# 20Mn2 30Mn2 40Mn2 20CrMo 30CrMo

35CrMo 42CrMo

Used for manufacture of machinery parts, pipe fittings, Grid etc.

Seamless steel pipe for the purpose of transmission the fluid

GB/T8163-1999

ASTM A53-98

ASTM A192

ASME S192

JIS G3452-1998

FIS G3454-1998

DIN 1629-1984

10# 20#

Q295 Q345

Transmission the general gas, liquid and dry powder

Seamless line pipe

GB/T9711.1 GB/T9711.2

ISO3183-1

ISO3183-2

API Spec 5L

ASTM A53 A106

L245 L290 L320 L360 L390 L415

A B X42 X46 X56 X60 X65

Transport the natural gas and oil liquids, such as undersea pipelines. High-pressure pipeline. Cryogenic Pipeline

Low and medium boiler pipe

GB3087-1999

ASTM A179 ASTM A192

ASTM SA179 SA192

BS3059

10# 20#

Low and medium pressure boiler header, steam pipes

High pressure boiler pipe

GB5310-1995

ASTM A106-96a

ATSM A213-95a

JIS G3461-1988

JIS G3462-1998

DIN 17175-1979

BS3059Part 21990

20G 20MnG 25MnG 15MoG 20MoG 15CrMoG 12Cr1MoVG

St35.8 St45.8

SA106A/B/C

SA210A/B/C

T2/P2 T11/P11 T12/P12

T91/P91

Used as the heat pipe, header ,steam pipe  working in the circumstances that the pressure exceed 9.8MPa,temperature between 540 to 650 degree