Steel SKT4 Alloy Steel Round Bar Special Steel

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Loading Port:
China main port
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TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
10000 m.t./month

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Item specifice:

Type: Alloy Steel Shape: Steel Round Bar Standard: EN,DIN,BS,GB,JIS,ASTM,AISI,API
Technique: Hot Rolled,Spring,EFW,Extruded,Forged,ERW,Cold Drawn,Cold Rolled Steel Grade: Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B) Certification: ISO,SGS,BV,IBR,RoHS,CE,API,BSI,UL
Surface Treatment: PVDF Coated,Bright,Polished,Chromed Passivation,Dry,Oiled,Color Coated,Copper Coated,Coated,Galvanized,Black Thickness: as required Shape: Round,Hexagonal,C Channel,Square,U Channel
Length: as required Net Weight: as required

Product Description:

Chemical Composition%

CountryStandardCSiMnCrNiMoSPOther
China(GB)5CrNiMo0.50-0.60≤0.400.50-0.800.50-0.801.40-1.800.15-0.30≤0.030≤0.030-
USA(ASTM)L60.65-0.750.20-0.400.55-0.650.65-0.851.25-1.750.25--V:0.25
Germany(DIN)1.27130.50-0.600.10-0.400.65-0.950.60-0.801.50-1.800.25-0.35--V:0.07-0.12
Japan(JIS)SKT40.50-0.60≤0.350.60-1.000.70-1.001.30-2.00.20-0.50≤0.030≤0.030-

 

Available Size

Rolled Round Barφ12-80mm
Forged Round BarΦ85-600mm

 

Heat Treatment

ProcessingTemperature ℃Hardness
Anneal760-780197-241HB
Quenching830-86053-58HRC
Tempering490-51044-47HRC
520-54038-42HRC
560-58034-37HRC

 

Characterstics

1.High toughness and strength
2.Higher abrasion resistance 
3.Remaining hardness of HB300 at 500℃
4.Insensitive to tempering brittleness due to addition of Mo

 

Applications: Suitable for large and medium sized forging dies with thickness of 250-350mm for automobiles,tractors,transmission gears,front axle beams and rear axles of automobiles,and forging dies for engineering machine components.

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Steel SKT4 Alloy Steel Round Bar Special Steel

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