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Specifications
weld pipe1.Environmental protection,
2.beautiful appearance,
3.strong and durable,
4.acid and
Product name: Welded pipe
Specifications:
Wall Thickness |
0.5-80 mm |
WT Tolorance |
+12.5% / -10% |
Length |
6-12m or as customers’ request |
Outer Diameter |
9-3000mm |
OD Tolorance |
+1% / -1% |
Surface |
Black, painted, Galvanized, color coated, PE coated, Varnish, anti-rust oiled, etc |
Raw Material Test |
Tensile Test, Yeild Strength, Elogation, Impact Test |
Chemical Analysis, Hardness Test, Charpy Impact Test | |
Metallographic Examination | |
Final Product Test |
Hydraulic Test, On-line and off-line Ultrasonic Test, Tensile Test |
Yeild Strength, Elogation, Hardness Test, Charpy Impact, Flattening | |
Test Chemical Analysis, Metallographic Examination | |
Material |
10#,20#,45#,A53A,A53B,A106Gr.A,A106Gr.B,A106A,A106B,ST52-3,ST358,16Mn,Q235B,API5L Gr.B,Gr.65,Gr.60,Gr.70,X42,X52,X60,X65,X70,X80,etc |
|
Standard |
GB/T3091 Welded steel pipe for low pressure liquid delivery GB/T9711 Petroleum and natural gas industries--Steel pipe for pipelines IS: 3589 Steel tubes for water and sewage IS : 1978-1982:Steel tubes for use in transportation of oil; gas & Petroleum products ASTM A53 Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless DIN 2458 WELDED STEEL PIPES AND TUBES EN10217 Welded steel tubes for pressure purposes.Technical delivery conditions. Nonalloy steel tubes with specified room temperature properties API 5L/API5CT Line and oil Pipe SY/T5037 Spiral submerged arc-welded steel pipe for pipelines for low pressure field fluid service SY/T 5040 Spiral submerged arc-welded steel pipe piles CJ/T 3022 Spiral submerged-arc welded steel pipe for municipal heat supply IS : 1978 Steel tubes for use in transportation of oil;gas & Petroleum products ASTM A252 WELDED AND SEAMLESS STEEL PIPE PILES |
Technique |
Hot Rolled, Welded |
Packaging Details |
Standard export packing or Package In Bundle |
Process Flow:
Raw material Test→ Uncoiling→ Strip leveling → End Cutting→ End Shearing and Welding→ Accumlator → Forming→ Telepathy Welding → Seam Heat Treatment→ Air/Water Cooling→ Body/Seam UT→ Sizing Straightening→ Cutting→ Visual and Dimension Inspection→ Hydraulic Test→ End Beveling→ Flatten test→ Seam/End UT→ Length-Measuring and Weighing→ Coating-Marking→ Storage
picture:
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