Applicable grades: st12, st13, st14, st15, st14-T
Symbol: ST-steel, 12-ordinary grade cold-rolled steel plate, 13-stamping grade cold-rolled steel plate, 14-deep drawing grade cold-rolled steel plate, 15-extra deep drawing grade cold-rolled steel plate, 14- T-Super cold-rolled thin steel plate.
Surface Quality:
FC-Advanced finishing surface,
FB-higher level of finishing surface.
Surface structure: b-extra smooth, g-smooth, m-matte, r-rough.
Marking: product name (steel plate or steel strip), product standard number, surface quality code, drawing level (only for St14, St14-T, St15), surface structure, edge condition (trimmed edge EC, non-trimmed edge EM) , product specifications and dimensions, appearance accuracy (thickness and/or width, length, unevenness).
Marking example: Steel plate, standard number Q/BQB 403, grade St14, surface structure is particularly smooth (b), surface quality is FC, edge trimming (EC), thickness 0.8mm, A-level accuracy, width 1200mm, A-level accuracy, Length 2000mm, A-level accuracy, unevenness is PF.B accuracy, marked: Q/BQB 403 St14-FC-ZF-b
Steel plate EC: 0.8A×1200A×2000A-PF.B
Origin: Baosteel, GNEE STEEL, etc.
