Q295B welded steel pipes is KUNFENG Steel main production which under GB/T 3091-2008 standard, GB/T Q295B welded steel pipes widely used in construction, mechanical structure of the pipe, agricultural equipment pipe, water gas pipe, greenhouse tube, scaffolding tube, building materials, furniture tube, low pressure fluid pipe, tubing, Black and color oil, transparent oil, anti-rust oil or according to customer requirements, generally hot, controlled rolling, normalizing and normalizing and tempering delivery.
GB/T 3091 Q295B welded steel pipes chemical composition
C≤0.16;Si≤0.55;Mn:0.80-1.50;P≤0.040;S≤0.040;V:0.02-0.15;Nb:0.015-0.06;Ti:0.02-0.20
GB/T 3091-2008 Q295B welded pipes mechanical properties
mechanical property of Q295B |
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Grade |
lowder yield |
Tensile |
Extensibility after |
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strength Rel/N/MM^2 |
strength |
fracture A/% |
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no less than |
R/N/MM^2 |
no less than |
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no less than |
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t<=16mm |
T>16mm |
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D<=168.3MM |
D>168.3mm |
Q295B |
295 |
275 |
390 |
13 |
18 |
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