GB / T4171-2008 Q235NH weathering steel mechanical properties and chemical composition

GB / T4171-2008 Q235NH weathering steel Atmospheric corrosion resistant steel, weathering steel from carbon steel to add a small amount of copper, nickel and other elements made of corrosion-resistant, high-quality steel with a tough, plastic casting, forming, welding, abrasion, heat, fatigue and other characteristics; at the same time, it resistant to rust, corrosion resistant components make life extension, thinning saving.
GB / T4171-2008 Q235NH in steel standard GB/ T 4171 2008 is a kind atmospheric corrosion resisting structural steel.The minimum yield strength is 235 Mpa,and tensile strength within 360-510Mpa.According to the different impacting temperature,Q235NH steel plates can be Q235NHA,Q235NHB,Q235NHC,
GB / T4171-2008 Q235NH weathering steel chemical composition:
C: Less than or equal0.13%
Si:0.1%~0.4%
Mn:0.2%~0.6%
P: Less than or equal0.03%
S: Less than or equal0.03%
Cu:0.25%~0.55%
Cr:0.40%~0.80% 
Ni: Less than or equal0.65%
GB / T4171-2008 Q235NH weathering steel need to be done minus 40 centigrade low temperature impacting test and Q235NHA need no impacting test.BBN steel stock thousands tons weathering steel plate Q235NH in our port warehouses which are ready for shipment.Welcome our vast customers ask us for stock list of these weathering steel plates.