GB/T 3091-2008 Q295B welded steel pipes

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11-May-2024

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

Grade	lowder yield		Tensile	Extensibility after
	strength Rel/N/MM^2		strength	fracture A/%
	no less than		R/N/MM^2	no less than
			no less than

	t<=16mm	T>16mm		D<=168.3MM	D>168.3mm
Q295B	295	275	390	13	18

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