Standard: GB700-88,   Q235, Q345, 

GB1499-91,   20MnSi, 20MnSiV, 25MnSi, 25MnSiV

JIS G3101,   SS400

Delivery:   Hot Rolled

Size(mm):   

90 x 90 x   9000 / 12000mm

100 x 100   x 9000 / 12000mm

120 x 120   x 9000 / 12000mm

130 x 130   x 9000 / 12000mm 

150 x 150   x 9000 / 12000mm

160 x 160   x 9000 / 12000mm

230 x 340   x 4000 / 9000mm

250 x 250   x 4000 / 9000mm

280 x 340   x 4000 / 9000mm

Chemical   Composition(Q235)

C: 0.12-0.20  Mn: 0.30-0.70

Si: ≤0.30       P: ≤0.045

S: ≤0.045

Chemical Composition(Q345):

C: 0.20% max.    Si:   0.55% max

Mn: 1.00-1.60    P: 0.045% max.

S: 0.045% max.

Chemical Composition (20MnSi)

C: 0.17-0.25   Si: 0.40-0.80

Mn: 1.20-1.60  P: 0.045 max.

S: 0.045 max.

Chemical Composition(20MnSiV): 

C: 0.17-0.25   Si: 0.20-0.80

Mn: 1.20-1.60  V: 0.02 min.

P: 0.045 max.  S: 0.045 max.

Chemical Composition(25MnSi):

C: 0.20-0.30   Si:0.60-1.00

Mn:1.20-1.60  P:0.045 max.

S:0.045 max.

Chemical Composition(25MnSiV)

C:0.23-0.30   Si:0.30-0.80

Mn:1.20-1.60  V:0.02 min.

P: 0.045 max.

S: 0.045 max.