The weathering board (SPA-H) is made of ordinary carbon steel with a small amount of corrosion-resistant elements such as copper and nickel. It has the properties of high-quality steel such as strength, ductility, forming, welding, abrasion, high temperature, fatigue, etc. Weather resistance is 2~8 times of ordinary carbon, the coating performance is 1.5-10 times that of ordinary carbon steel, which can be used for thinning, bare use or simplified coating. The steel has the characteristics of rust resistance, corrosion resistance and longevity of components, thinning and consumption reduction, and labor-saving and energy-saving characteristics, which benefit component manufacturers and users.
Comparison of SPA-H steel sheet implementation standards at home and abroad.
China: GB/T 4171-2008 Standard Specification for the Implementation of Weathering Structural Steel Plates.
American Standard: ASTM A606-04 High-strength low-alloy hot-rolled and cold-rolled steel plates and strips resistant to atmospheric corrosion.
ASTM A871/A871M-03 Atmospheric corrosion resistant high-strength low-alloy steel plate.
Japanese standard: JIS G 3114:2004 Standard Specification for Hot Rolled Atmospheric Corrosion Resistant Structural Steel.
Main applications of SPA-H board
SPA-H board is outdoor steel for containers, power plants, chimneys, railway projects, such as steel for large outdoor sculptures. Weathering board (that is, atmospheric corrosion resistant steel) is a low-alloy steel series between ordinary steel and stainless steel at a low price and good quality. It can be used to manufacture low-alloy structural steel for steel structures such as vehicles, bridges, towers, and containers. Compared with ordinary carbon steel, weathering board has better corrosion resistance in the atmosphere.
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