The details of products:
1Definition: welded steel pipe is also called welded pipe which is steel pipe formed by welding the curled steel plates or strip steel, with general
fixed length of 6m.
2Production process: raw material uncoiling â flattening â end cutting and welding â looping â
molding â welding â internal/external removal of welding beads â precorrection â inductive heat treatment â sizing and straightening â eddy current testing â cutting â water
pressure inspection â acid pickling â final inspection (strict control) â packing â delivery
3
Category:
Production methods:
a. Process â electric arc-welded pipes, resistance welded pipe (high
frequency, low frequency), gas-welded pipes, furnace butt-welded pipes
b. Welding seam â straight welded pipes, spiral welded pipes
4
Wall Thickness
Thin-wall steel pipes, thick-wall steel pipes
5 End Shape
Circular
welded pipes and specially-shaped (square, flat, etc.) welded pipes
6 Length: 6m-12m(capable of being
customized and processed according to customer requirements)
7 Surface:Prime quality (bared, oiled, color paint, 3LPE, or other anti-corrosive
treatment)
8 Packing: bundling, nude packing, or packing according to customer
requirements
9 Carbon Steel Straight Welded Pipes
Weight (kg) per
meter
Note: d (outer diameter); t (wall
thickness)
10Features:
Straight welded pipes feature simple production process, high production
efficiency, low cost and high development speed.
The intensity of spiral welded pipes is generally higher than that of straight welded pipes; welded pipes with larger
pipe diameters can be produced by relatively narrow blanks; welded pipes with different pipe diameters can be produced blanks with the same width. However, spiral welded pipes have the length
increase of 30~100%, as well as lower production speed compared with straight welded pipes with the same length.
11Application:
structure, electric power transmission tower projects, piling, water, oil & gas pipeline
engineering, mechanical industry, municipal projects, roads and its auxiliary facilities, etc.
CommodityERW / LSAW spiral welded steel pipe from China manufacturer
Outer diameter
ERW LSAW SSAW
1/8-20 inch 12-56 inch 8-126 inch
(10.3-508mm) (323.8-1,420mm) (219.1-3,200mm)
Wall thickness 0.4-16mm 6.0-40mm 6.0-26mm
Length 5.8~12 m or upon customersâ requirements
Standard
GB/T3091,GB/T 13793,ASTM A252,ASTM,A53,ASTM A500,EN 10210, API 5L,DIN 1626/1615,DIN 17120,etc
Grade
SS400,Q235,Q345,Q460, A572Gr.50, A 572Gr.60, S235, S275,S355,Grade A/B, X42, X52, X60,X70,etc
Surface Prime quality(bared, oiled, color paint, 3LPE, or other anti-corrosive treatment)
DeliveryTime: Generally within 30 days after receiving the deposit or L/C at sight.
Payment Terms
1ãT/T: 30% T/T advance, 70 % balance copy of B/L
2ãL/C: 100% L/C at sight
Portï¼ Tianjin
Application:
Structure, electric power transmission tower projects, piling, water, oil & gas pipeline engineering, mechanical industry, municipal projects, roads and its auxiliary facilities, etc.
Delivery time: | Generally within 30 days after receiving the deposit or L/C at sight. |
Package :
|
1. In bundles
2.Waterproof package 3.According to customers\\\' requirements |
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