Carbon Tool Steel

Carbon tool steel has been an important material in mechanical fabrication, for example, measuring gauge, cutting tool and dies are made of high carbon steel (0.6~1.5% carbon). Other alloy elements such as Cr., Mn., Ni., Mo., V., W., and so on, are added depending on different purposes. By chemical elements added, there are tool steel, alloy steel and high-speed steel; if by purposes, there are tool steel for machining, impact-resistant, wear-resistant and heat-resistance. The characteristics of carbon tool steel include: easy to conduct heat-treatment, good toughness and wear-resistance, not softened in high temp., easy and low-cost fabrication. However, the machinability can be reduced in high temp.. Therefore, it is necessary to conduct hardening and tempering for strength, hardness, wear-resistance and toughness. Besides, before hardening process, conduct spheroidizing to make cementite spheroidized.

Product Applications

Suitable for drive shafts, templates, cars, milling tools, hand tools... , etc.

S2 Tool Steel

It is alloy that contains carbon (C), Si., Mn., Cr., Mo., an

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S2 Tool Steel

It is alloy that contains carbon (C), Si., Mn., Cr., Mo., and V. and possesses superior impact resistance, strength and toughness. Because of its more superior mechanical performances than Cr. Mo. steel, S2 has been used as high-end material to produce screw driver, hex wrench and so on.

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Turning Tool

Suitable for drive shafts, templates, cars, milling tools, hand tools... , etc.

Steel data

Standard Code Spec No. Material No. Mark
CNS 2964 SK140
JIS G4401 SK141
DIN 17350 1.1673 SK142
ASTM A686 SK157
CNS 2964 SK160
GB 1298 SK161
JIS G4401 SK162
ASTM A686 SK163
JIS G4401 SK4
(C)% (Si)% (Mn)% (P)% (S)% (Ni)% (Cr)% (Mo)% (Cu)% (W)% (V)% Annealing(HB) Quenching(HRC)
1.3~1.5 0.1~0.35 0.1~0.5 ≦ 0.03 ≦ 0.03 ≦ 0.25 ≦ 0.3 ≦ 0.25 ≦ 217 ≧ 63
1.3~1.5 0.1~0.35 0.1~0.5 ≦ 0.03 ≦ 0.03 ≦ 0.25 ≦ 0.3 ≦ 0.25
1.3~1.45 ≦ 0.3 ≦ 0.35 ≦ 0.03 ≦ 0.03
1.15~1.25 0.1~0.4 0.1~0.4 ≦ 0.03 ≦ 0.03 ≦ 0.2 ≦ 0.15 ≦ 0.1 ≦ 0.2 ≦ 0.15 ≦ 0.1 ≦ 202 ≧ 64
1~1.1 0.1~0.35 0.1~0.5 ≦ 0.03 ≦ 0.03 ≦ 0.25 ≦ 0.3 ≦ 0.25 ≦ 212 ≧ 61
0.95~1.04 ≦ 0.35 ≦ 0.4 ≦ 0.035 ≦ 0.03 ≦ 197 ≧ 62
1~1.1 0.1~0.35 0.1~0.5 ≦ 0.03 ≦ 0.03 ≦ 0.25 ≦ 0.3 ≦ 0.25 ≦ 212 ≧ 61
1~1.1 0.1~0.4 0.1~0.4 ≦ 0.03 ≦ 0.03 ≦ 0.25 ≦ 0.15 ≦ 0.1 ≦ 0.2 ≦ 0.15 ≦ 202 ≧ 65
0.9~1 ≦ 0.35 ≦ 0.85 ≦ 0.03 0.04~0.09 ≦ 0.2 ≦ 0.2 ≦ 0.3