Chemical Composition

C

Si

Mn

P

S

Q345B

≤0.20

≤0.55

1.00-1.60

≤0.040

≤0.040

Q345C

≤0.20

≤0.55

1.00-1.60

≤0.035

≤0.035

Q345D

≤0.18

≤0.55

1.00-1.60

≤0.030

≤0.030

Product Name

Steel Grade

Thickness

mm

Widthm

Application

General structural steel

Q195,Q215A-Q235A/B/C/D ,Q275A/B/C/D,

SS330SS400SPHT1/2/3.

Q235CQ235D.

1.9~25.4mm

0.7~2

Applied for

 normal construction

Low Carbon steel

SPCCSPHCSt12SAE1008

1.9~25.4mm

0.7~2

Applied for cold rolling 

or cold forming

SPHDSPCDKSt12St13

1.9~25.4mm

0.7~2

SPHESPCESt14 IF3 BH340

1.9~25.4mm

0.7~2

Carbon constructional 

quality steel

08-45#08Al15AlS 20C S 35C S 45C

 K08AlZ06-10AlP

1.9~25.4mm

0.7~2

After being machined 

and hot treated to used 

as mechanical component  

Low-alloy

constructional steel

SM490ASM490YA15Mn

1.9~25.4mm

0.7~2

Applied for normal 

construction

Q345A Q345B Q345C Q345D Q345D

1.9~25.4mm

0.7~2

Hot Rolled Steel 

Chequered Coil