carbon tool steel

carbon tool steel

Due to its high carbon content, its elasticity and hardness are so strong that it is used for a variety of tools.

Carbon tool steel is used in razor blade, cutlery, hack saws, springs, knitting needles, measuring tape, gauges, spatula, clutch parts, circular saws, mowers, band saw and hack saw.

Chemical composition

SK2

C 1.10~1.30

Si 0.350 Max

Mn 0.500 Max

P 0.030 Max

S 0.030 Max

Cu 0.250 Max

Ni 0.250 Max

Cr 0.200 Max

SK3

C 1.00~1.10

Si 0.350 Max

Mn 0.500 Max

P 0.030 Max

S 0.030 Max

Cu 0.250 Max

Ni 0.250 Max

Cr 0.200 Max

SK4

C 0.90~1.00

Si 0.350 Max

Mn 0.500 Max

P 0.030 Max

S 0.030 Max

Cu 0.250 Max

Ni 0.250 Max

Cr 0.200 Max

SK5

C 0.80~9

Si 0.350 Max

Mn 0.500 Max

P 0.030 Max

S 0.030 Max

Cu 0.250 Max

Ni 0.250 Max

Cr 0.200 Max

purpose of use

SK2(SK120M)

razor blade, cutlery

SK3(SK105M)

hack saws, cutlery, springs

SK4(SK95M)

knitting needles, measuring tape, razor blade, springs, cutlery

SK5(SK85M)

gauges, springs, cutlery, spatula, clutch parts, circular saws, mowers, band saw and hack saw

SK2MCR4

razor blade, cutlery