4340 belongs to the American standard high-strength alloy structural steel, which is made of high-quality carbon structural steel by appropriately adding one or several alloying elements.
1.AISI 4340 Steel
4340 steel is a wear-resistant material with particularly good wear, impact and impact resistance, as well as excellent atmospheric corrosion resistance. The alloy is also very ductile, especially in the annealed condition, and it can be easily shaped and machined.
2.AISI 4340 Steel Chemical Composition:
C:0.37-0.44 Si:0.17-0.37 S:≤0.035 P:≤0.035
Mn: 0.50-0.80 Cr: 0.60-0.90 Mo: 0.15-0.25 N: 1.25-1.65
3.AISI 4340 Steel Mechanical Properties:
Tensile strength σb (MPa): ≥980(100)
Yield strength σs (MPa): ≥835(85)
Elongation δ5 (%): ≥12
Area shrinkage ψ (%): ≥55
Impact energy Akv (J): ≥78
Elongation δ5 (%): ≥12
Area shrinkage ψ (%): ≥55
Impact energy Akv (J): ≥78
Impact toughness value αkv (J/cm2): ≥98(10)
Sample size: sample blank size is 25mm
4.AISI 4340 Steel Advantage:
It has high strength, toughness, excellent hardenability and stability against overheating, good plasticity and heat resistance, uniform material,etc.
songshunmoldsteel41404340
4340 steel is a wear-resistant material with particularly good wear, impact and impact resistance, as well as excellent atmospheric corrosion resistance. The alloy is also very ductile, especially in the annealed condition, and it can be easily shaped and machined.
2.AISI 4340 Steel Chemical Composition:
C:0.37-0.44 Si:0.17-0.37 S:≤0.035 P:≤0.035
Mn: 0.50-0.80 Cr: 0.60-0.90 Mo: 0.15-0.25 N: 1.25-1.65
3.AISI 4340 Steel Mechanical Properties:
Tensile strength σb (MPa): ≥980(100)
Yield strength σs (MPa): ≥835(85)
Elongation δ5 (%): ≥12
Area shrinkage ψ (%): ≥55
Impact energy Akv (J): ≥78
Elongation δ5 (%): ≥12
Area shrinkage ψ (%): ≥55
Impact energy Akv (J): ≥78
Impact toughness value αkv (J/cm2): ≥98(10)
Sample size: sample blank size is 25mm
4.AISI 4340 Steel Advantage:
It has high strength, toughness, excellent hardenability and stability against overheating, good plasticity and heat resistance, uniform material,etc.
songshunmoldsteel41404340
Certificate
- SGS/ISO/Mill certificate
Main Products
4140 Steel,4340 Steel,Cool work Hot work mold steel,high speed steel