Made from Q345B/L360 high-strength steel, this large-diameter (610-2000mm), thick-wall (10-80mm) welded pipe serves oil, gas, and pressure vessel industries. Longitudinal/spiral submerged arc welding ensures weld quality (99%+ NDT pass rate), with internal anti-corrosion coating and 10MPa pressure resistance. Modular design allows custom lengths up to 12m per piece, suitable for extreme environments (-46℃ to 350℃). Compliant with API 5L and GB/T 9711, each pipe undergoes hydrostatic and X-ray testing, backed by third-party warranty reports. Ideal for long-distance pipelines, steel bridges, and energy infrastructure, it combines high strength and deformation resistance to reduce maintenance costs and extend service life.
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Name
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Welded Steel Pipes
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Size
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OD : 21.3mm-406.4mm
WT : 1.2-20mm
Length : 1-12m
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Ordinary Dimension
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DN6 /DN8/DN15/DN20/DN25/DN32/DN50/DN80/DN100/DN150/DN300/DN500 etc
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Steel Grade
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Q195, Q235A-B, Q345A-E, 20#, 10#,16Mn, ASTM A36,ASTM A500,
ASTM A53, ASTM 106, SS400, St37, St52, S235JR, S355TRH ect.
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Standard
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GB/T 3091-2001,GB/T13912-2002, BS 1387, ASTM F1083 ect.
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Pipe Ends
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Plain, beveled, threaded, socket with holes, with PVC clap/ coupling/ clamp,
or as customers' requirement
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Treatment
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As Requriements
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Application
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liquid delivery (pump well, gas, water), construction pipe, structural
pipe(greenhouse structure, fence post), curtain wall, machinery part ect.
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Package
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in bundle, no other package or wrapped with waterproof,
or as customers' requirement
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Lead Time
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10days from stock
15-20days produced according to the qty
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Remarks
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1.All the pipes are high-frequency welded.
2.Both inner and outer welded stab can be removed.
3.Special design available according to requirement.
4.Pipe can be necked down and punched holes.
5.Supplying BV or SGS Inspection if client need.
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Address: No. 29, Furong West 4th Road, Yunlin Street, Xishan Economic Development Zone, Wuxi City, Jiangsu Province, China
