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      1. Continuous casting round/square billet

         1. Specifications
         
        Category Grade Specification(mm) Production standards
        High quality carbon steel 20~45,
        SAE1045,
        S45C, C45,
        C45E,
        CK45
        and etc.
        Φ300, Φ380, Φ400,
        Φ450, Φ500, Φ600
        rectangle 200×380,
        200×400
        GB, ASTM, JIS, DIN or customer specified requirements
        Low alloy steel Q345A
        (B, C, D, E)
        Φ300, Φ380, Φ400,
        Φ450, Φ500, Φ600
        rectangle 200×380,
        200×400
        GB, ASTM, JIS, DIN or customer specified requirements
        Alloy steel 42CrMoA,
        40Cr,  
        SCM440,
        4140,
        42CrMo4
        and etc.
        Φ300, Φ380, Φ400,
        Φ450, Φ500, Φ600
        rectangle 200×380,
        200×400
        GB, ASTM, JIS, DIN or customer specified requirements
        Pipeline steel 37Mn5, L290,
        29Mn2,
        12Cr1MoVG,
        P91, P92
        and etc.
        Φ300, Φ380, Φ400,
        Φ450, Φ500, Φ600
        GB or customer specified requirements
        Alloy tool steel 5CrMnMo,
        5CrNiMo
        4Cr5MoSiV1
        and etc.
        Φ300, Φ380, Φ400,
        Φ450, Φ500, Φ600
        rectangle 200×380,
        200×400
        GB or customer specified requirements
        Railway steel U71Mn, 900A
        and etc.
        rectangle 200×380,
        200×400
        TB/T2344-2012 or customer specified requirements
         
         2. Product Quality Level
         
        Category Grade Chemical component Non-metallic Inclusion Harden
        ability
        HRC

         

         

        P

        (%)
        S

        (%)
        [O] 

        (ppm)
        A
        thin
        A
        heavy
        B
        thin
        B
        heavy
        C
        thin
        C
        heavy
        D
        thin
        D
        heavy
        Ds
        Carbon steel SAE1045,
        S45C,
        CK45, 45
        0.015 0.005 20 1.5 1.0 1.5 1.0 0 0 1.5 1.0

         

         

        Alloy steel 42CrMo,
        40Cr
        0.015 0.005 20 1.5 1.0 1.5 1.0 0 0 1.5 1.0 1.5

         

        Pipeline steel 37Mn5, L290, 29Mn2, 12Cr1MoVg 0.015 0.005 20 1.5 1.0 1.5 1.0 0 0 1.5 1.0

         

         

        Gear steel 20CrMoH,  20CrMnTiH, 20CrNiMoH 0.015 0.005 20 1.5 1.0 1.5 1.0 0 0 1.5 1.0

         

        ≤6
        SCM420H, SCM822H 0.015 0.005 20 1.5 1.0 1.5 1.0 0 0 1.5 1.0

         

        ≤6
        Spring steel 60Si2CrVA 0.015 0.005 20 1.5 1.0 1.5 1.0 0 0 1.5 1.0

         

         

        Bearing steel GCr15 0.015 0.005 10 1.0 0.5 1.0 0.5 0 0 1.0 0.5 1.0  


         

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