UNS No.

C

Mn (max)

P (max)

S (max)

Si

Cr

Mo

Hardness

Tensile Strength

Yield Strength

4140 Steel Plate

G41400

0.38 – 0.43

0.75 – 1.0

0.035

0.04

0.15 – 0.30

0.8 – 1.1

0.15 – .25

Bhn 195+
RC 22+

98ksi +

58ksi +