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E: enquiry@qilumetal.com
E: enquiry@qilumetal.com
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C60 / 1.0601 is a high carbon structural steel belonging to the European standards EN 10083-2 and EN 10250-2. It is widely used in industries such as machinery manufacturing, automotive components, and tooling, where high strength and wear resistance are required. Therefore, you can find its equivalents in different national standards, such as American Standard ASTM 1060 (ASTM A20), Japanese Standard S58C (JIS G4051), Chinese Standard 60# (GB/T 699), and British Standard 080A62 (BS 970).
C60 is a high carbon steel series with a carbon content of 0.57-0.65%. It is typically supplied in the untreated or normalized condition, where it exhibits high strength and hardness but lower toughness. After heat treatment processes such as quenching and tempering (QT), it can achieve excellent mechanical properties, including increased hardness and wear resistance, making it suitable for applications such as springs, high-strength shafts, and cutting tools. Its high carbon content also makes it ideal for components subjected to heavy loads and abrasive conditions.
1: Steel equivalent
Country | USA | Europe | China | British | Japan |
Standard | ASTM A20 | EN10083-2 | GB/T699 | BS970 | JIS G4051 |
Grade | 1060 | C60/1.0601 | 60# | 080A62 | S58C |
2: Chemical composition
Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
1060 | 0.55-0.65 | / | 0.60-0.90 | 0.040Max | 0.050Max | / | / | / |
C60/1.0601 | 0.57-0.65 | 0.40Max | 0.60-0.90 | 0.045Max | 0.045Max | 0.40Max | 0.10Max | 0.40Max |
60# | 0.57-0.65 | 0.17-0.37 | 0.50-0.80 | 0.035Max | 0.035Max | 0.25Max | / | 0.30Max |
S58C | 0.55-0.61 | 0.15-0.35 | 0.60-0.90 | 0.030Max | 0.035Max | 0.20Max | / | / |
3: Mechanical properties .
Mechanical properties for C60 quenching and tempering carbon steel according to EN10083-2.
Size range | Tensile strength | Yield strength | Alongation | Area of reduction | Impact value At RT/J |
d≤16 t≤8 | 850-1000Mpa | 580Mpa Min | 11% Min | 25% Min | / |
16＜d≤40 8＜t≤20 | 800-950Mpa | 520Mpa Min | 13% Min | 30%Min | / |
40＜d≤100 20＜t≤60 | 750-900Mpa | 450Mpa Min | 14% Min | 35%Min | / |
Mechanical properties for C60 normalizing carbon steel according to EN10083-2 and ISO683-1.
Size range | Tensile strength | Yield strength | Alongation | Area of reduction | Impact value At RT/J |
d≤16 t≤16 | 710Mpa | 380Mpa Min | 10% Min | / | / |
16＜d≤100 16＜t≤100 | 670Mpa | 340Mpa Min | 11% Min | / | / |
100＜d≤250 100＜t≤250 | 650Mpa | 310Mpa Min | 11% Min | / | / |
Sampling and preparation of test pieces for C60 quenching and tempering steel.
1): According to EN10083-1, all samples shall be taken at a distance of 12.5mm below the heat treated surface
2): As stipulated in the contract between buyer and seller.
Mechanical properties for C60 open die forgings steel in the normalized and normalized and tempered conditions according to EN10250-2.
Size range | Tensile strength | Yield strength | Alongation | Impact value at RT/J | ||
L | Tr | L | Tr | |||
d≤100 | 670Mpa Min | 340Mpa Min | 11% Min | / | / | / |
100＜d≤250 | 650Mpa Min | 310Mpa Min | 11% Min | 8% Min | / | / |
250＜d≤500 | 630Mpa Min | 275Mpa Min | 11% Min | 8% Min | / | / |
500＜d≤1000 | 620Mpa Min | 260Mpa Min | 10% Min | 7% Min | / | / |
Mechanical properties for C60 open die forgings steel in the quenched and tempered conditions according to EN10250-2.
Size range | Tensile strength | Yield strength | Alongation | Impact value at RT/J | ||
L | Tr | L | Tr | |||
d≤70 | 750Mpa Min | 450Mpa Min | 14% Min | / | / | / |
70＜d≤160 | 690Mpa Min | 390Mpa Min | 15% Min | 10% Min | / | / |
160＜d≤330 | 670Mpa Min | 350Mpa Min | 14% Min | 9% Min | / | / |
Remark: L= Longitudinal Tr = Transverse
Sampling and preparation of test pieces for steel forging.
1: According to EN10250-1, all samples shall be taken at a distance of 4/T below the heat treated surface (with a minimum of 20mm and a maximum of 80mm), and t/2 from the end (where t is the equivalent thickness of the thickness of the ruling section of the forging at the time of heat treatment.
2: As stipulated in the contract between buyer and seller.
4: Surface hardness and hardenability.
Heat Treatment | Hardness |
Flame or Induction hardening | 55-62HRC |
Treated to improve shearability (+S) | HB255Max |
Soft annealed (+A) | HB241Max |
Quenched and tempred (+QT) | HRC28-32(Common Range) |
Where the steel is ordered by using the symbols for normal (+H) or restricted (+HL, +HH) hardenability requirements, the hardenability values should apply below:
Distance in mm from quenched end | |||||||||||||||||
Distance | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 13 | 15 | 20 | 25 | 30 | |
Hardness In HRC + H | max | 67 | 66 | 65 | 63 | 62 | 59 | 54 | 47 | 39 | 37 | 36 | 35 | 34 | 33 | 31 | 30 |
min | 60 | 57 | 50 | 39 | 35 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 23 | 21 | |
Hardness In HRC + HH | +HH5 | / | / | / | / | 44-62 | / | / | / | / | / | / | / | / | / | / | / |
+HH15 | 62-67 | / | / | / | 44-62 | / | / | / | / | / | / | / | / | / | / | / | |
Hardness In HRC + HL | +HL5 | / | / | / | / | 35-53 | / | / | / | / | / | / | / | / | / | / | / |
+HL15 | 60-65 | / | / | / | 35-53 | / | / | / | / | / | / | / | / | / | / | / | |
Scatter bands for the Rockwell - C hardness in the end quench hardenability test.
5: Supply size & Tolerance & Stock size
Product type | Size range | Length |
Cold drawn bar | Φ3-Φ80mm | 6000-9000mm |
Hot rolled bar | Φ16-Φ310mm | 6000-9000mm |
Hot forged bar | Φ100-Φ1200mm | 3000-5800mm |
Hot rolled plate/sheet | T:3-200mm; W:1500-2500mm | 2000-5800mm |
Hot Forged block | T: 80-800mm; W: 100-2500mm | 2000-5800mm |
Surface Finish | Turned | Milled | Grinding(Best) | Polished(Best) | Peeled(Best) | Black Forged | Black Rolled |
Tolerance | +0/+3mm | +0/+3mm | +0/+0.05mm | +0/+0.05mm | +0/+0.1mm | +0/+5mm | +0/+1mm |
Straighness | 1mm/1000mm max. | 3mm/1000mm max. | |||||
For C60 steel bar, we don’t have stocks for hot rolled and hot forged bar. For hot rolled bar, the minimum of quantity per order is 400tons. For hot forged bar, the minimum of quantity is one bar.
6：Forging processing
Put the C60 ingot into the furnace and heat to 900-1100℃
Forge the ingot, forging temperature should be not less than 850℃
Cooling in the sand after forged
7: Heat treatment
Soft annealed:
Heat C60 steel to 680-710℃ in the furnace
Soak at this temperature in the furnace
Cooling in the furnace
Normalized:
Heat C60 steel to 820-860℃ in the furnace
Soak at this temperature in the furnace
Cooling in the air
Quenching and tempering:
Heat C60 steel to 800-840℃ in the furnace
Soak at this temperature in the furnace
Quench in water or oil
Temper steel at 550-660℃ in the furnace
Take out of C60 steel from furnace and cool in the air.
Remark: The conditions given above are for guidance, at the temperatures at the lower end of the range are generally applicable to hardening in water and those at the upper end for hardening in oil.
8: Weldability
C60 steel has poor weldability. For steel material, weldability has a strong relationship with the carbon element. When the carbon content is more than 0.25%, the weldability will start to get worse. The carbon content of C60 steel is around 0.57%-0.65%, so the weldability is not good.
9：Application
C60 steel is a high carbon steel with high strength and hardness, mainly used in the following fields.
Mechanical Manufacturing
1): Springs: Used in the manufacture of high stress springs such as those found in automobile suspensions and industrial equipment.
2): Cutting tools: Used in the production of cutting tools, saw blades and stamping dies, etc.
Automotive Industry
1): Transmission components: Used in the manufacture of gears, shaft parts and other components that require high strength and wear resistance.
Construction Industry
1): High Strength Structural Parts: Used in bridges, buildings and other structural parts that require high strength and durability.
Other Applications
1): Bearings: Used in the manufacture of high-load bearings.
2): Wear-resistant parts: Used in the manufacture of wear-resistant plates, liners, etc.
C60 / 1.0601 is a high carbon structural steel belonging to the European standards EN 10083-2 and EN 10250-2. It is widely used in industries such as machinery manufacturing, automotive components, and tooling, where high strength and wear resistance are required. Therefore, you can find its equivalents in different national standards, such as American Standard ASTM 1060 (ASTM A20), Japanese Standard S58C (JIS G4051), Chinese Standard 60# (GB/T 699), and British Standard 080A62 (BS 970).
C60 is a high carbon steel series with a carbon content of 0.57-0.65%. It is typically supplied in the untreated or normalized condition, where it exhibits high strength and hardness but lower toughness. After heat treatment processes such as quenching and tempering (QT), it can achieve excellent mechanical properties, including increased hardness and wear resistance, making it suitable for applications such as springs, high-strength shafts, and cutting tools. Its high carbon content also makes it ideal for components subjected to heavy loads and abrasive conditions.
1: Steel equivalent
Country | USA | Europe | China | British | Japan |
Standard | ASTM A20 | EN10083-2 | GB/T699 | BS970 | JIS G4051 |
Grade | 1060 | C60/1.0601 | 60# | 080A62 | S58C |
2: Chemical composition
Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
1060 | 0.55-0.65 | / | 0.60-0.90 | 0.040Max | 0.050Max | / | / | / |
C60/1.0601 | 0.57-0.65 | 0.40Max | 0.60-0.90 | 0.045Max | 0.045Max | 0.40Max | 0.10Max | 0.40Max |
60# | 0.57-0.65 | 0.17-0.37 | 0.50-0.80 | 0.035Max | 0.035Max | 0.25Max | / | 0.30Max |
S58C | 0.55-0.61 | 0.15-0.35 | 0.60-0.90 | 0.030Max | 0.035Max | 0.20Max | / | / |
3: Mechanical properties .
Mechanical properties for C60 quenching and tempering carbon steel according to EN10083-2.
Size range | Tensile strength | Yield strength | Alongation | Area of reduction | Impact value At RT/J |
d≤16 t≤8 | 850-1000Mpa | 580Mpa Min | 11% Min | 25% Min | / |
16＜d≤40 8＜t≤20 | 800-950Mpa | 520Mpa Min | 13% Min | 30%Min | / |
40＜d≤100 20＜t≤60 | 750-900Mpa | 450Mpa Min | 14% Min | 35%Min | / |
Mechanical properties for C60 normalizing carbon steel according to EN10083-2 and ISO683-1.
Size range | Tensile strength | Yield strength | Alongation | Area of reduction | Impact value At RT/J |
d≤16 t≤16 | 710Mpa | 380Mpa Min | 10% Min | / | / |
16＜d≤100 16＜t≤100 | 670Mpa | 340Mpa Min | 11% Min | / | / |
100＜d≤250 100＜t≤250 | 650Mpa | 310Mpa Min | 11% Min | / | / |
Sampling and preparation of test pieces for C60 quenching and tempering steel.
1): According to EN10083-1, all samples shall be taken at a distance of 12.5mm below the heat treated surface
2): As stipulated in the contract between buyer and seller.
Mechanical properties for C60 open die forgings steel in the normalized and normalized and tempered conditions according to EN10250-2.
Size range | Tensile strength | Yield strength | Alongation | Impact value at RT/J | ||
L | Tr | L | Tr | |||
d≤100 | 670Mpa Min | 340Mpa Min | 11% Min | / | / | / |
100＜d≤250 | 650Mpa Min | 310Mpa Min | 11% Min | 8% Min | / | / |
250＜d≤500 | 630Mpa Min | 275Mpa Min | 11% Min | 8% Min | / | / |
500＜d≤1000 | 620Mpa Min | 260Mpa Min | 10% Min | 7% Min | / | / |
Mechanical properties for C60 open die forgings steel in the quenched and tempered conditions according to EN10250-2.
Size range | Tensile strength | Yield strength | Alongation | Impact value at RT/J | ||
L | Tr | L | Tr | |||
d≤70 | 750Mpa Min | 450Mpa Min | 14% Min | / | / | / |
70＜d≤160 | 690Mpa Min | 390Mpa Min | 15% Min | 10% Min | / | / |
160＜d≤330 | 670Mpa Min | 350Mpa Min | 14% Min | 9% Min | / | / |
Remark: L= Longitudinal Tr = Transverse
Sampling and preparation of test pieces for steel forging.
1: According to EN10250-1, all samples shall be taken at a distance of 4/T below the heat treated surface (with a minimum of 20mm and a maximum of 80mm), and t/2 from the end (where t is the equivalent thickness of the thickness of the ruling section of the forging at the time of heat treatment.
2: As stipulated in the contract between buyer and seller.
4: Surface hardness and hardenability.
Heat Treatment | Hardness |
Flame or Induction hardening | 55-62HRC |
Treated to improve shearability (+S) | HB255Max |
Soft annealed (+A) | HB241Max |
Quenched and tempred (+QT) | HRC28-32(Common Range) |
Where the steel is ordered by using the symbols for normal (+H) or restricted (+HL, +HH) hardenability requirements, the hardenability values should apply below:
Distance in mm from quenched end | |||||||||||||||||
Distance | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 13 | 15 | 20 | 25 | 30 | |
Hardness In HRC + H | max | 67 | 66 | 65 | 63 | 62 | 59 | 54 | 47 | 39 | 37 | 36 | 35 | 34 | 33 | 31 | 30 |
min | 60 | 57 | 50 | 39 | 35 | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 23 | 21 | |
Hardness In HRC + HH | +HH5 | / | / | / | / | 44-62 | / | / | / | / | / | / | / | / | / | / | / |
+HH15 | 62-67 | / | / | / | 44-62 | / | / | / | / | / | / | / | / | / | / | / | |
Hardness In HRC + HL | +HL5 | / | / | / | / | 35-53 | / | / | / | / | / | / | / | / | / | / | / |
+HL15 | 60-65 | / | / | / | 35-53 | / | / | / | / | / | / | / | / | / | / | / | |
Scatter bands for the Rockwell - C hardness in the end quench hardenability test.
5: Supply size & Tolerance & Stock size
Product type | Size range | Length |
Cold drawn bar | Φ3-Φ80mm | 6000-9000mm |
Hot rolled bar | Φ16-Φ310mm | 6000-9000mm |
Hot forged bar | Φ100-Φ1200mm | 3000-5800mm |
Hot rolled plate/sheet | T:3-200mm; W:1500-2500mm | 2000-5800mm |
Hot Forged block | T: 80-800mm; W: 100-2500mm | 2000-5800mm |
Surface Finish | Turned | Milled | Grinding(Best) | Polished(Best) | Peeled(Best) | Black Forged | Black Rolled |
Tolerance | +0/+3mm | +0/+3mm | +0/+0.05mm | +0/+0.05mm | +0/+0.1mm | +0/+5mm | +0/+1mm |
Straighness | 1mm/1000mm max. | 3mm/1000mm max. | |||||
For C60 steel bar, we don’t have stocks for hot rolled and hot forged bar. For hot rolled bar, the minimum of quantity per order is 400tons. For hot forged bar, the minimum of quantity is one bar.
6：Forging processing
Put the C60 ingot into the furnace and heat to 900-1100℃
Forge the ingot, forging temperature should be not less than 850℃
Cooling in the sand after forged
7: Heat treatment
Soft annealed:
Heat C60 steel to 680-710℃ in the furnace
Soak at this temperature in the furnace
Cooling in the furnace
Normalized:
Heat C60 steel to 820-860℃ in the furnace
Soak at this temperature in the furnace
Cooling in the air
Quenching and tempering:
Heat C60 steel to 800-840℃ in the furnace
Soak at this temperature in the furnace
Quench in water or oil
Temper steel at 550-660℃ in the furnace
Take out of C60 steel from furnace and cool in the air.
Remark: The conditions given above are for guidance, at the temperatures at the lower end of the range are generally applicable to hardening in water and those at the upper end for hardening in oil.
8: Weldability
C60 steel has poor weldability. For steel material, weldability has a strong relationship with the carbon element. When the carbon content is more than 0.25%, the weldability will start to get worse. The carbon content of C60 steel is around 0.57%-0.65%, so the weldability is not good.
9：Application
C60 steel is a high carbon steel with high strength and hardness, mainly used in the following fields.
Mechanical Manufacturing
1): Springs: Used in the manufacture of high stress springs such as those found in automobile suspensions and industrial equipment.
2): Cutting tools: Used in the production of cutting tools, saw blades and stamping dies, etc.
Automotive Industry
1): Transmission components: Used in the manufacture of gears, shaft parts and other components that require high strength and wear resistance.
Construction Industry
1): High Strength Structural Parts: Used in bridges, buildings and other structural parts that require high strength and durability.
Other Applications
1): Bearings: Used in the manufacture of high-load bearings.
2): Wear-resistant parts: Used in the manufacture of wear-resistant plates, liners, etc.
