Our products are seamless steel pipe,
ERW pipe, SSAW pipe.
The specifications are following:
SPIRAL STEEL PIPE
OUTSIDE.D 219--3220mm
W.T 6--18mm
STANDARD SY/T5037-2000 GB9711.1 GB9711.2 API5L
MATERIAL: ST37,ST44,ST52, Q235B/Q345B/L245/L290/L360/L415/L485/20# API
5L.B/X42/X52/X60/X70 X80 X100etc
ERW STEEL PIPE
OUTSIDE.D 60.3--609.6mm
W.T 6--14mm
STANDARD GB3091-2001 GB9711.1 GB9711.2 API5L API 5CT
MATERIAL ST37,ST44,ST52, Q235B/Q345B/L245/L290/L360/L415/L485/20# API
5L.B/X42/X52/X60/X70 etc
SEAMLESS STEEL PIPE
OUTSIDE.D 21.3--609.6mm
W.T 6--50mm
STANDARD GB/T8162-1999 GB/T8163-1999 GB3087-1999 GB5310-1999 API5L API 5CT
MATERIAL ST37,ST44,ST52,Q345B/20#/45#/20G/16Mn/J55/K55/L80/API 5L.B
X42/X52/X60/X70 etc
CASING STEEL PIPE
OUTSIDE . D 139.7-269.9mm
W.T. 6.2-15.11mm
MATERIAL: J55,K55,N80-1,N80Q,L80Q,P110, etc