JIS SPA-H Weathering Steel Plate
JIS SPA-H Weathering Steel Plate is part of the Weathering Steel Plate range. SPA-H weathering steel, also known as atmospheric corrosion-resistant steel, refers to a type of low-alloy high-strength steel that contains a small amount of alloying elements, is relatively low-priced, and has good corrosion resistance in the atmosphere.




Technical Detail
During use, the surface of weathering steel will gradually form a dense and firmly adherent protective film of corrosion products, which prevents oxygen, water and other corrosive media in the atmosphere from further corroding the matrix, making the corrosion rate significantly lower than that of...
Due to its high strength and reasonable price, the production cost is much lower than that of stainless steel.
The SPA-H execution standard is: JISG3125-2015.
Weather-resistant structural steel , that is, atmospheric corrosion resistant steel , belongs to low-alloy high-strength structural steel .
According to its main characteristics, it is divided into high weathering structural steel and weathering steel for welded structure.
Weathering steel plate material GB: Q235NH, Q355NH, Q355GNH.
Specification
| Weathering steel plate material GB | Q235NH, Q355NH, Q355 |
|---|---|
| GNH. European standard | EN10025-5:2004: S355J0W, S355J2W, S355K2W, S355J0WP and S355J2 |
| WP. Japanese standard | JIS G3114-2004: SMA400AW/BW/CW, SAM490AW/BW/CW/, SAM570W/P |
| American Standard | ASTM A588 Corten-A/B Special weathering steel grade for containers: SPA-H, the standard is JIS G3125 Ministry of |
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