• Specification：OD21.5mm to OD508mm, thickness: 0.8mm to 26mm
• Transport Package：Strap in Bundles with Steel Strips, Anti-Rust Oil
• Steel Grade：Q195,Q235B,Q345,16mn,X42,X52,X80,ASTM A500,A53,A36
• Thickness Tolerance：+,- 0.05mm to +,- 0.25mm
• Length：4-12meters
• Thickness：0.8mm - 26mm
• out Dia.(Mm)：Od21.5mm - 508mm
• Model NO.：OD21.5mm to OD508mm, thickness: 0.8mm to 26mm
• Trademark：Wanrunda
• Origin：Tianjin and Qingdao
• HS Code：7303009000
• Production Capacity：100000mt,Year

Introduction of our ERW Steel Pipe/TubeProduct Description:ERW Welded Steel Pipe/TubeStandard:GB/T3091-2008  Low-pressure fluid transportation
GB/T14291-2006  Mine fluid transportation
GB/T14980-1994 Large diameter Low-pressure fluid transportationDimension:OD21.5mm to OD508mmWall thickness:0.8mm-26 mmLength:Normal 6000mm, Range: 4-12meters, or as the request of customersTolorance of W.T:±0.05mm to ±0.25mmMaterial:Q235A/Q235B/Q345B/ASTM A36/ASTM A53/SS400/X42/X52MOQ:Normal dimension 5MT, unnormal dimension should negotaite.Application:GB/T3091-2008  Low-pressure fluid transportation, such as water , coal gas, air,
oil, hot water, steem etc. or other usage. Normal grade:Q235A
GB/T14291-2006 Mainly use for mine air compressor, water drain, gas drain etc.
                Normal grade: Q235A,Q235B
GB/T14980-1994 durty  wanter supply/sewage drain/gas, oil transportation etcPayment term:30% payment in advance by T/TDelivery time:7-20 days after receiving the deposits. 
Welded steel pipe application:
For liquid transportation- water supply/water drain;
For gas transportation- sewerage gas/liquefied petroleum gas ;
For structure-As piling steel pipe/bridge structure/road structure etc.
 
Process drawing of ERW welded steel pipe:
 
 
Material of welded steel pipe adopt steel plate or steel strip, because of different welding processes and into the furnace pipe, welded (ERW) pipes and automatic arc welded. Because of the different forms of welding, pipe into LSAW and spiral welded pipe. Because the shape of the ends of the pipe, welded steel pipe divided into circular pipe and shaped (square, flat, etc.) pipe.
Dimension of  Welded Steel Pipe:ERW welded steel pipeOD21.5mm - 508mm,
Wall thickness:  0.8mm - 26mmSpiral welded steel pipeOD219mm - 1520mm
Wall thickness: 5mm t- 30mmPetroleum casing pipeOD60.3mm - 508mm
Wall thickness: 4mm -16mm