Grade

Chemical Composition(%)

C

Mn

Si

S

P

B

SAE1006B

0.03~O.07

≤0.32

≤0.30

≤0.045

≤0.040

>0.0008

Mechanical properties

Yield strength(N/mm2)

Tensile strength(N/mm2)

Elongation(%)

250-280

350-380

≥32

Grade

Chemical Composition(%)

C

Mn

Si

S

P

B

SAE1008B

0.10max

0.3~O.50

0.15max

0.050max

0.040 max

0.0008 min

Mechanical properties

Yield strength(N/mm2)

Tensile strength(N/mm2)

Elongation(%)

≥195

315-430

≥30