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GB/T 3091-2008 Q295B welded steel pipes

Q295B welded steel pipes is BBN 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 3091-2008 Q295B welded steel pipes

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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