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GB/T 3091-2008 Q235B welded steel pipes

Q235B welded steel pipes is an industrial steel pipe which under GB/T 3091-2008 standard, Q235B welded steel pipes’s surface can be painted black paint, varnish, antiseptic oil, galvanized or according to customer requirements, mainly used in low-pressure liquid, water, gas, oil, pipeline, construction, fence, Or wooden pallet packing, piping paint, end plastic cover or according to customer requirements.

GB/T 3091-2008 Q235B welded steel pipes

GB/T 3091 Q235B welded steel pipes Chemical composition

chemical composition of Q235B

Grade

Class

C

Mn

Si

S

P

 

 

no more than

Q235

B

0.12-0.2

0.3-0.7

0.3

0.045

0.045

Q235B welded steel pipes Mechanical properties

mechanical property of Q235B 

Grade

lowder yield

Tensile

Extensibility after

strength Rel/N/MM^2

strength

fracture A/%

no less than

R/N/MM^2

no less than

t<=16mm

        T>16mm

no less than

D<=168.3MM

D>168.3mm

Q235B

235

225

370

15

20

About GB/T 3091-2008 Q235B welded steel pipes chemical properties and production process, if you have any questions, please feel free to contact us, we will give you a detailed answer. We are maintained at more than 1,000 tons per month GB/T 3091-2008 Q235B welded steel pipes stocks, to meet your needs, please call.

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