ASTM 4140 Steel Bar Structural Alloy Steel with High Quality

Product Details
Customization: Available
Type: Alloy Steel Bar
Standard: ASTM
Manufacturer/Factory, Trading Company

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  • ASTM 4140 Steel Bar Structural Alloy Steel with High Quality
  • ASTM 4140 Steel Bar Structural Alloy Steel with High Quality
  • ASTM 4140 Steel Bar Structural Alloy Steel with High Quality
  • ASTM 4140 Steel Bar Structural Alloy Steel with High Quality
  • ASTM 4140 Steel Bar Structural Alloy Steel with High Quality
  • ASTM 4140 Steel Bar Structural Alloy Steel with High Quality
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Basic Info.

Model NO.
4140
Technique
Forged
Shape
Round, Square, Flat
Surface Treatment
Black, Grinded, Peeled, Polished, Rough Turned
Special Use
Mold Steel
Application
Structural Steel Bar
Similar Grades
42CrMo4, 42CrMo, Scm440
Size Range
Diameter: 20-480mm
Quality Standard
ASTM-A29
Delivery Condition
Annealed, Qunched and Tempered
Surface Condition
Black, Grinded, Peeled, Polished
Transport Package
Apply The Shipping Packing
Specification
4140, 42CrMo4, 42CrMo, SCM440
Trademark
FUSHUN
Origin
Hubei, Huangshi
HS Code
7228600000
Production Capacity
500tons Per Month

Product Description

ASTM 4140 Steel Bar Structural Alloy Steel with High QualityASTM 4140 Steel Bar Structural Alloy Steel with High QualityASTM 4140 Steel Bar Structural Alloy Steel with High Quality
 Similar Grades:
 42CrMo4, 42CrMo, SCM440
 
Shape: 
Round, Flat,.
 
Size Range: 
Diameter:20-480mm, Thickness:10-420mm.
 
Delivery Condition: 
Annealed, Qunched and Tempered
 
Surface Condition: 
Black, Grinded, Peeled, Polished
 
Features:

1:Competitive price 
2 Immediate delivery
3.Premium quality
4.Reliable service
 
Chemical Composition:

C
Mn P S Si Cr Mo
0.38-0.43 0.75-1.00 0.035 0.040 0.15-0.35 0.80-1.10 0.15-0.25
 
 
Characteristics                                                         
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.
 
Applications                                                                      
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                                                      
Forging Heat to 1150°C. Hold until uniform. Minimum forging temperature 850°C.Cool slowly in ashes or sand etc.
Annealing Heat to 830°C-850°C.Cool in furnace.
Normalising Heat to 870°C-900°C.Cool in still air.
Stress Relieving Annealed: Heat to 600°C-650°C.Hardened: Heat to 500°C-550°C.Cool in still air.
Hardening Heat to 830°C-880°C. Quench in oil or polymer.
Tempering Heat 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.
 ASTM 4140 Steel Bar Structural Alloy Steel with High Quality

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