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C60 Steel Suppliers in China - High Carbon AISI 1060 Factory for Engineering Applications

PRODUCT DESCRIPTION

C60 steel is a premium unalloyed medium carbon engineering steel widely recognized for its robust properties. With a carbon content ranging from 0.57% to 0.65% in accordance with the EN10083 standard, this material exhibits remarkable hardness and strength, akin to C55 carbon steel, especially after the hardening process. However, it should be noted that C60's high carbon content leads to challenges in welding and can result in reduced machinability. Typically, this steel is available from reliable China suppliers and is supplied in an untreated or normalized condition, making it a popular choice in various industrial applications. As a leading factory for C60 steel, we ensure superior quality and consistent performance to meet the demands of our customers.

    GENERAL CHARACTERISTICS

    C60 steel is an unalloyed medium carbon engineering steel which has 0.57%-0.65% Carbon as per EN10083 standard. It has characteristics similar to that of C55 carbon steel which has high hardness and high strength after hardening. C60 is difficult to weld, and machinability is poor due to high carbon content. This steel is generally supplied in an untreated or normalized condition.

    Designation by Standards
    Mat. No. DIN EN AISI
    1.0601 C60 - 1060
    Chemical Composition (in weight %)
    C Si Mn Cr Mo Ni V W Others
    0.61 max. 0.40 0.75 max. 0.40 max. 0.10 max. 0.40 - - (Cr+Mo+Ni)= max. 0.63
    Description

    C60 is one of the higher carbon contents (0.60%) steels. It is more difficult to fabricate than the lower carbon grades.

    Applications

    Applications include hand tools such as screwdrivers, pliers and similar items.

    Physical properties (average values) at ambient temperature
    • Modulus of elasticity [103 x N/mm2]: 210
    • Density [g/cm3]: 7.85
    • Thermal conductivity [W/m.K]: 46.6
    • Electric resistivity [Ohm mm2/m]: 0.127
    • Specific heat capacity [J/g.K]: 0.46
    • Coefficient of Linear Thermal Expansion 10-6 °C-1: See table below
    20-100°C 20-200°C 20-300°C 20-40°C 20-500°C
    11.1 12.1 12.9 13.5 13.9
    Heat Treatment
    Soft Annealing

    Heat to 680-710°C, cool slowly in furnace. This will produce a maximum Brinell hardness of 241.

    Normalizing

    Normalizing temperature: 820-86°C/air.

    Hardening

    Harden from a temperature of 800-840°C followed by water or oil quenching.

    Tempering

    Tempering temperature: 550-660°C/air.

    Mechanical Properties in Hardened Tempered Condition
    Diameter (mm) 0.2 % proof stress (N/mm²) Tensile strength (N/mm²) Elongation A5 (%) Reduction Z (%)
    up to 16 570 830-980 11 20
    17-40 490 780-930 13 30
    41-100 450 740-890 14 35
    Mechanical Properties in Normalized Condition
    Diameter (mm) 0.2 % proof stress (N/mm²) Tensile strength (N/mm²) Elongation A5 (%)
    up to 16 min. 380 min. 710 min. 10
    17-100 min. 340 min. 670 min. 11
    101-250 min. 310 min. 650 min. 11
    Diagram Tempering Temperature – Mechanical Properties
    Forging

    Hot forming temperature: 1100-800°C.

    Machinability

    Machinability of C60 and all of the higher carbon steels is relatively poor. C60 rates at 55 to 60 % that of the AISI 1112 steel which is considered 100% machinable.

    Corrosion Resistance

    This steel is not corrosion resistant. It will rust unless protected.

    Welding

    C60 may be welded by all of the conventional methods. However both pre-heat and post-heat should be used when welding by an approved procedure. Pre-heat at 260 to 320°C and post-heat at 650 to 780°C.

    Cold working

    Cold working is difficult even in the annealed condition although it may be done by conventional methods but requires greater force than the lower carbon steels.

    Frequently Asked Questions (FAQ)
    Q1: What standard defines C60 steel and what is its carbon content?

    A1: C60 steel is an unalloyed medium carbon engineering steel defined by the EN10083 standard, containing a carbon content range of 0.57% to 0.65%.

    Q2: What are the typical applications of C60 steel?

    A2: C60 steel is commonly used for manufacturing hand tools, such as screwdrivers, pliers, and similar items.

    Q3: How machinable is C60 steel compared to standard grades?

    A3: The machinability of C60 steel is relatively poor due to its high carbon content. It rates at 55% to 60% compared to AISI 1112 steel, which is considered 100% machinable.

    Q4: What is the recommended procedure for welding C60 steel?

    A4: While C60 can be welded by all conventional methods, it requires an approved procedure utilizing both pre-heating (at 260 to 320°C) and post-heating (at 650 to 780°C).

    Q5: What are the heat treatment temperatures for soft annealing C60 steel?

    A5: For soft annealing, C60 steel should be heated to 680-710°C and then cooled slowly in the furnace. This process yields a maximum Brinell hardness of 241.

    Q6: Is C60 steel resistant to corrosion?

    A6: No, C60 steel is not corrosion resistant and will rust unless it is properly protected.