Weathering Steel Plate
Weathering steel contains alloy elements as Cu, P, Cr, Ni, and Si with totaling a few percent maximum.if exposing outside, an adherent, compact, and protective layer of corrosion products grows under a coarse surface rust layer, retarding further corrosion.
Corten Steel: Corten A, Corten B
ASTM A588/A588M: A588GrA, A588GrB, A588GrC, A588GrK
SMA400AW, SMA400AP, SMA400BW, SMA400BP, SMA400CW, SMA400CP, SMA490AW, SMA490AP, SMA490BW, SMA490BP, SMA490CW, SMA490CP, SMA570W, SMA570P