Cold-rolled Box Plate

In addition, cold rolling also includes some relatively few varieties, such as cold-rolled box plate, cold-rolled hard plate, cold-rolled sheet, etc. These two categories are mainly named because of their different shapes and materials. The galvanizing unit with pre-annealing treatment device processes galvanizing;

Proof strength Rp0.2 (MPa)	Tensile strength Rm (MPa)	Impact energy KV (J)	Elongation at fracture A(%)	Reduction in cross section on fracture Z(%)	As-Heat-Treated Condition	Brinell hardness (HBW)
797 (≥)	464 (≥)	12	11	13	Solution and Aging, Annealing, Ausaging, Q+T,etc	322

Structural Grades	C	Mn	P	S	Cu	Ni	Cr	Mo	V	Cb	Ti
30,33,36,40	0.25	0.9	0.035	0.04	0.2	0.2	0.15	0.06	0.008	0.008	0.025
36T2,45-80	0.25	1.35	0.035	0.04	0.2	0.2	0.15	0.06	0.008	0.008	0.025
45T2	.02- 0.08	.30- 1.0	.03- .07	0.025	0.2	0.2	0.15	0.06	0.008	0.008	0.025

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