Hot Rolled 5140 Steel, 5140 Steel Structure, 5140 Steel Plate

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

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Item specifice:

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

Product Description:

Hot Rolled 5140 Steel, 5140 Steel Structure, 5140 Steel Plate

Equivalent grades   

42CrMo1.7225 4140SCM440

Chemical Composition 


Available size    

Round steel bar 60-800mm
Flat steel bar 25-400mm*200-800mm

Surface condition  

Black surface/ Grinded/ Machined


Annealed HBS 217 max


4140 Alloy Steel/SAE 4140 Steel Price is engineering steel supplied in quenched and tempered conditions. Very good machinability. High toughness. High creep strength. Repeated impact resistant capability.


4140 Alloy Steel/SAE 4140 Steel Price  is use to producecomponents with high requirements on toughness, e.g. gear wheels, pinions, connecting rods, parts for mechanical engineering .

Heat treatment 

ForgingHeat to 1150°C. Hold until uniform. Minimum forging temperature 850°C.Cool slowly in ashes or sand etc.
AnnealingHeat to 830°C-850°C.Cool in furnace.
NormalisingHeat to 870°C-900°C.Cool in still air.
Stress RelievingAnnealed: Heat to 600°C-650°C.Hardened: Heat to 500°C-550°C.Cool in still air.
HardeningHeat to 830°C-880°C. Quench in oil or polymer.
TemperingHeat to 450°C-700°C cool in still air. NB. Tempering within the range 200°C-420°C will result in temper brittleness and should be avoided.

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Hot Rolled 5140 Steel, 5140 Steel Structure, 5140 Steel Plate

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