Tool Carbon Steel

Carbon tool steels are a group of steels primarily composed of iron and carbon, with additional alloying elements added to enhance specific properties. These steels are commonly used for making tools and cutting implements due to their high hardness, wear resistance, and ability to hold a sharp edge.
Standard of Supply:SK2,SK4,SK85,etc
Form:Sheet/Bar/Square Block,etc

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Description

Tool Carbon Steel

Carbon tool steel is a type of steel that is primarily used for manufacturing cutting tools, molds, and dies. It is composed mainly of carbon, with additional elements such as manganese, silicon, chromium, and vanadium added to achieve desired properties. Carbon tool steel is known for its hardness, wear-resistance, and toughness, making it ideal for use in various industrial applications.

tool carbon steel

Standard of Carbon Tool Steel Supply

1.One of the most common types of tool steel is SK2. SK2 is a high-carbon steel that is known for its good wear resistance and toughness. It is used in the manufacturing of a wide range of cutting tools, such as saw blades, knives, and shears. SK2 is also used in the production of hand tools and industrial machines.

2.Another popular type of carbon tool blades steel is SK4. Like SK2, SK4 is also a high-carbon steel that is known for its excellent hardness and wear resistance. It is often used for manufacturing blades, springs, and other cutting tools. SK4 is also used in the production of woodworking tools, such as saw blades and chisels.

3.SK85 is another type of Blades steel that is commonly used in industrial applications. It is a high-carbon steel that is known for its strength, toughness, and wear resistance. SK85 is often used in the manufacturing of tools used in metalworking, such as punches, dies, and gauges. It is also used for making high-quality knives and surgical instruments.

Carbon Blades Steel Size

Grade	Thickness (mm)	Width (mm)
SK2 (SK120)	0.010–2.000	3–300
SK4 (SK95)	0.010–2.000	3–300
SK5 (SK85)	0.010–3.500	3–300

Tool Carbon Steel Standard

Designation	International Standard	USA	UK	Germany	France	Russia	China	Japan
Designation	ISO	AISI SAE	BS	DIN	NF	ΓOCT	GB	JIS
SK2 (SK120)	TC120	W1-11^1/2	-	-	C120E3U	y12	T12	SK2 (SK120)
SK4 (SK95)	TC90	W1-9	-	-	C90E2U	y10	T10	SK4 (SK95)
SK5 (SK85)	TC90 TC80	W1-8	-	C80W1	C90E2U C80E2U	y8Γ y9	T8Mn T9	SK5 (SK85)

Chemical composition of SK85 Steel

Type	TOKKIN Designation	Chemical composition(%)
Type	TOKKIN Designation	C	Si	Mn	P	S	Cｒ	Ni	Others
Tool steel JIS G 3311 (4401)	SK2 (SK120)	1.15～ 1.30	0.10～ 0.35	0.10～ 0.50	≦0.030	≦0.030	≦0.30	≦0.25	Cu≦0.25
	SK4 (SK95)	0.90～ 1.00	0.10～ 0.35	0.10～ 0.50	≦0.030	≦0.030	≦0.30	≦0.25
	SK5 (SK85)	0.80～ 0.90	0.10～ 0.35	0.10～ 0.50	≦0.030	≦0.030	≦0.30	≦0.25

Tool Steel Tensile Strength

Grade	Finishing condition	Hardness test	Tensile test
Grade	Finishing condition	HV	Tensile strength N/mm²	Elongation %
SK-2 (SK120)	Annealed	170–210	520–685	20–32
	Skin passed	190–230	570–715	10–28
	Rolled	250–290	735–980	2–15
	Full hardened	280–320	835–1080	1–3
SK4 (SK95)	Annealed	160–200	490–645	24–35
	Skin passed	175–215	540–695	12–32
	Rolled	245–285	725–970	2–15
	Full hardened	270–310	825–1040	1–4
SK5 (SK85)	Annealed	150–190	460–625	26–37
	Skin passed	170–210	510–685	15–35
	Rolled	240–280	725–930	3–16
	Full hardened	260–300	805–1000	1–5

Carbon Blades Steel Hardness

Grade	Finishing condition (HV)
Grade	Annealed	Skin passed	Rolled	Full hardened
SK2 (SK120)	170–210	190–230	250–290	280–320
SK4 (SK95)	160–200	175–215	245–285	270–310
SK5 (SK85)	150–190	170–210	240–280	260–300

Carbon Tool Steel is a versatile material that is widely used in various industries. It is valued for its excellent mechanical properties, such as high hardness, toughness, and wear resistance. It is also easy to machine and can be heat-treated to achieve desired properties.

Tool Blades Steel Quenching Temperature

Grade	Quenching temperature (°C)
SK4 (SK95)	790–850 oil quenching (760–820 water quenching)
SK5 (SK85)	790–850 oil quenching (760–820 water quenching)

Tool Blades Carbon Steel Applications

Carbon tool steels are widely used in the production of cutting tools, such as knives, chisels, drills, saw blades, and machining tools. They are also used in various applications requiring high strength, wear resistance, and the ability to retain a sharp cutting edge.

blades of steel

Note:the specific properties and composition of carbon tool steels can vary depending on the grade and manufacturer. Therefore, when selecting a carbon tool steel, it's recommended to refer to the manufacturer's specifications and technical data to ensure it meets the requirements of the intended application.

Contact our experienced sales team to help you with your Carbon tool steel questions and inquiry by Email on jackson@jinblai.com or Telphone +8618637285401. The questions and inquiry will be reply in 8 hours.

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