SPA-H is a kind of weather resistant steel plate. The steel grade adopts Japanese steel grade SPA-H. Its chemical composition, mechanical properties, thickness and width deviations are required to comply with the Japanese standard JISG3125-2004 "High Weather Resistance Rolled Steel".
1. The chemical composition of weather resistant steel plate SPA-H:
2. Mechanical properties of weather resistant steel plate SPA-H:
Yield strength: ≥355MPa;
Tensile strength: ≥490MPa;
3. Process of weather resistant steel plate SPA-H
First, the hot-rolled strip is passed through the pickling mill to produce chilled strip, and then the chilled strip is passed through the continuous annealing line to produce the final cold-rolled product. By optimizing the pickling, rolling, alkali cleaning, annealing, and smoothing processes, the production is SPA-H products. This product has the characteristics of high strength and good extension, and the container made with this product can fully meet the requirements of users.
4. Features of weather resistant steel plate SPA-H:
Weather-resistant steel plate SPA-H has good atmoSPHEric corrosion resistance, and also has the characteristics of high temperature, abrasion, forming, fatigue, toughness, and ductility; it can be used in bare, thinned, or simplified coating applications. SPA-H is rust-resistant, can make components thinner, reduce consumption, resist atmospheric corrosion, extend life, and has the characteristics of labor-saving and energy-saving, which will benefit component manufacturers and users.
Weather resistant steel plate SPA-H, the reasonable composition design of Cu, P, Cr, Ni is added to the low-carbon steel, the yield is between 390~439. Weather resistant steel plate SPA-H has strong corrosion resistance, and dimensional accuracy. The quality and formability indicators are very good, and they can be used to make containers.
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