GB/T4171 Q355NH Weathering Steel Plate
Q355NH characteristics: atmospheric corrosion-resistant steel, weathering steel from plain carbon steel to add a small amount of copper, nickel and other corrosion-resistant elements and become, with the steel toughness, plastic extension, molding, welding and cutting, abrasion, high temperature, fatigue resistance and other characteristics; at the same time, it has a rust-resistant, corrosion-resistant components to prolong the life of the thinning and reduction of consumption.
Q355NH weathering corten steel plate chemical composition
|
rade |
Q355NH chemical composition(%) |
||||
|
C Max |
Si Max |
Mn |
P |
S Max |
|
|
China GB/T 4171 Q355NH |
0.16 |
0.5 |
0.5-1.5 |
0.030 |
0.030 |
Q355NH cor ten weathering steel plate mechanical property
| Grade | Q355NH mechanical property | |||
| Yield Strength(MPa) | Tensile Strength(MPa) | % Elongation min | ||
| China GB/T 4171 Q355NH | 325-355 | 490-630 | 20 | |
Q355NH atmospheric corrosion resistant steel Sheet product details
Executive standard of Q355NH: This grade implements the national standard GB/T 4171-2008 standard.
Packaging, marking and quality certificate of Q355NH: The packaging, marking and quality certificate of the steel plate should be in accordance with the provisions of GB/T 247.
Application and use of Q355HN: It is mainly used for steel structures used in railroads, vehicles, bridges, pylons, etc. which are exposed to air (atmosphere) for a long time. Weathering-resistant steel is mainly used in the manufacture of containers, railway vehicles, oil derricks, seaport buildings, oil extraction platforms and chemical and petroleum equipment containing hydrogen sulfide corrosive medium in the container and some other structural components
Q355NH weathering steel additional condition
UT (Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered), Z Direction Test(Z15, Z25, Z35) ,Charpy V-Notch Impact Test, HIC test, NDT, PWHT( Simulated Post Weld Heat Treatment), NACE0175, The Third Party Test (Such as SGS Test), Coated or Shot Blasting and Painting.
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