30CrMnSiA hot rolled steel sheet

30CrMnSiA hot rolled steel sheet

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GB T-3077 30CRMNSIA standard applies to manufacture of bearing ring steel pipe rolling elements made by high-carbon chromium bearing steel processed with hot rolled forged round, steel wire, cold rolled. Continuous casting steel is not recommended to be the material of balls.

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  • Product Detail
  • | Technical Information
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    • Commodity name: 30CrMnSiA hot rolled steel sheet

    GB T-3077 30CRMNSIA standard applies to manufacture of bearing ring steel pipe rolling elements made by high-carbon chromium bearing steel processed with hot rolled forged round, steel wire, cold rolled. Continuous casting steel is not recommended to be the material of balls.

    Product introduction

    Alloy structural steel is a kind of steel which is used as mechanical parts and various engineering components, whichcontains one or more alloy elements.
    30CrMnSiA is a medium carbon with high strength and poor welding performance.
    30CrMnSiA has high strength and sufficient toughness after quenching and tempering, and hardenability is also good. After quenching and tempering, the material can be used as a grinding wheel shaft, gears and sprockets.
    30CrMnSiA has good processability, small processing deformation and good fatigue resistance. For shaft and piston parts and so on. It is used in various special wear parts such as automobiles and airplanes.
    The material is darker in color and galvanized can add aesthetics and rust.

    SUPPLY RANGE OF of GB/T 30CrMnSiA 

    -Dimension: Diameter 4-1600 mm, any length below 16 meters

    -Delivery Conditions:

    Cold drawn: 4-100 mm

    Peeled: 30-160 mm

    Grinded: 4- 600 mm

    Turned: 130-1200 mm

    Hot rolled: 12-320 mm

    Hot forged: 130-1600 mm

    -EAF+(ESR) or EAF+LF+VD+(ESR)

    -HOT rolled; Cold rolled; Forged; Cold Drawn

    -Heat Treatment: Untreated, Annealing, N+T, Q+T

    -Smelting: EAF+LF+VD (+ESR)

    -Surface Finish: Black, Rough Machined, Peeled, Turned or upon request

    -UT 100% passed

    -Cutting service provided

    -Third Party inspection is acceptable (SGS, BV etc.)

    Technical data

    Grade C Si Mn P S Ni Cr Cu
    30CrMnSiA 0.28-
    0.34
    0.90-
    1.20
    0.80-
    1.10
    0.025
    max
    0.025
    max

    0.40
    0.80-
    1.10

    0.25

     

    Mechanical properties

    Yield strength σs/MPa (>=) Tensile strength σb/MPa (>=)

    Elongation

    δ5/% (>=)

    Reduction of

    area ψ/% (>=)

    Impact absorbing energy Aku2/J (>=)

    Hardness HBS

    100/3000 max

    835 1080 10 45 39 229


    APPLICATIONS
    Grinding wheel shaft, gears and sprockets
    Special waer parts of automobiles and airplanes
    Kinds of tool shaped cutlery
    Shaft and piston parts
     

    Quality Assurance

    Below inspection will be done in the production.
    (1) ray detection---RT;
    (2) ultrasonic testing---UT;
    (3) Magnetic Particle Testing-MT;
    (4) penetration testing-PT;
    (5) eddy current flaw detection-ET


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To: Tianjin Bohai Metal Company


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