GB/T 4171 Q355GNH weather steel plate with good weather resistant

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GB/T 4171 Q355GNH weather steel plate with good weather resistant

GB/T 4171 Q355GNH weather steel plate with good weather resistant

GB/T 4171 Q355GNH weather steel plate, namely atmospheric corrosion resistant steel, is between the ordinary steel and stainless steel low alloy steel series, GB/T 4171 Q355GNH weather steel plate is by general carbon steel with a small amount of copper and nickel and other corrosion resistant elements, with high quality steel welding, cutting, abrasion and high temperature fatigue characteristics.

GB/T 4171 Q355GNH weather steel plate chemical composition

Grade

C

Si

Mn

P

S

Cu

Cr

Ni

Q355GNH

0.12

0.25-0.75

1

0.07-0.15

0.02

0.20-0.55

0.30-1.25

0.65

GB/T 4171 Q355GNH weather steel plate mechanical properties

Grade

Yield strength

Tensile strength

% Elongation in 2 in.(50mm) min

Q355GNH

355

490-630

22

GB/T 4171 Q355GNH weather steel plate is mainly used in railway vehicles, bridges, towers and other steel structures which are exposed to the atmosphere for a long time.

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