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B490NQR Weathering steel tube B490NQR steel pipe B490NQR Weathering steel tube is a weather resistant steel created by alloying copper, chromium and nickel.B490NQR steel has added phosphorous which makes the material best suited for gas flue applications and for aesthetic facias . B490NQR steel is a family member of Q/BQB 340 steel. B490NQR steel pipe improved anti corrosion structure steel tube have better corrosion resistance than carbon
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Material of B480GNQR Weathering steel plate/sheet - B480GNQR steel standards:Q/BQB 340. B480GNQR weathering steel alloy components and weight percentage contents:C:0.12 ~ 0.21, Si:0.2 ~ 2.0, Mn:0.7 ~ 2.0, s is less than or equal to 0.036, P < 0.034, Cu:0.10 ~ 0.40, Al<0.2, for the rest of the Fe and trace impurities. Through the Cu, Mn, Si, Al and other alloying, and simple adjustment of ordinary low carbon steel (Q235 steel) part of the
Q/BQB 340 B480GNQR weathering steel plates perfect for Q/BQB 340 B480GNQR weathering steel plates are widely used in different weather. It has good anti rust protection and welding ability, so shipping container, support frame of outside building are available for this grade. Typical application areas for Q/BQB 340 B480GNQR weathering steel plates: