Quality carbon structural steel: C50 (1.5040)
Implementation of the standards: EN 10083 / 2-1991
● Features and Scope:
High strength carbon steel, cold plastic deformation is low, weldability, hardenability poor, but no temper brittleness, cutting acceptable. Usually in normalizing or quenching and tempering use, for the manufacture of high wear resistance, dynamic load and impact of little machining parts and spring pieces, such as forging gear, rod, roll, shaft, friction disc, agricultural Plowshare digging, heavy-duty spindles and so on.
● Chemical Composition:
Carbon C: 0.47 ~ 0.55
Si Si: ≤0.40
Mn Mn: 0.60 ~ 0.90
Sulfur S: ≤0.045
Phosphorus P: ≤0.045
Chromium Cr: ≤0.40
Ni Ni: ≤0.40
Mo Mo: ≤0.10
● Mechanical Properties:
Tensile strength σb (MPa): ≥630 (64)
Yield strength σs (MPa): ≥375 (38)
Elongation δ5 (%): ≥14
Reduction of area ψ (%): ≥40
Impact energy Akv (J): ≥31 (4)
Impact toughness αkv (J / cm2): ≥39 (4)
Hardness: no heat, ≤241HB; annealed steel, ≤207HB
Sample size: Sample size is 25mm
● Heat treatment and microstructure specifications:
Heat treatment specifications: normalizing, 830 ℃; quenching, 830 ℃; tempering, 600 ℃.
Microstructure: ferrite pearlite.
● Delivery status: to heat or no heat treatment (annealing, normalizing or tempering) state delivery. Require heat treatment delivery should be specified in the contract, no heat treatment is not indicated by delivery. Quality carbon structural steel: C50 (1.5040)
Implementation of the standards: EN 10083 / 2-1991
● Features and Scope:
High strength carbon steel, cold plastic deformation is low, weldability, hardenability poor, but no temper brittleness, cutting acceptable. Usually in normalizing or quenching and tempering use, for the manufacture of high wear resistance, dynamic load and impact of little machining parts and spring pieces, such as forging gear, rod, roll, shaft, friction disc, agricultural Plowshare digging, heavy-duty spindles and so on.
● Chemical Composition:
Carbon C: 0.47 ~ 0.55
Si Si: ≤0.40
Mn Mn: 0.60 ~ 0.90
Sulfur S: ≤0.045
Phosphorus P: ≤0.045
Chromium Cr: ≤0.40
Ni Ni: ≤0.40
Mo Mo: ≤0.10
● Mechanical Properties:
Tensile strength σb (MPa): ≥630 (64)
Yield strength σs (MPa): ≥375 (38)
Elongation δ5 (%): ≥14
Reduction of area ψ (%): ≥40
Impact energy Akv (J): ≥31 (4)
Impact toughness αkv (J / cm2): ≥39 (4)
Hardness: no heat, ≤241HB; annealed steel, ≤207HB
Sample size: Sample size is 25mm
● Heat treatment and microstructure specifications:
Heat treatment specifications: normalizing, 830 ℃; quenching, 830 ℃; tempering, 600 ℃.
Microstructure: ferrite pearlite.
● Delivery status: to heat or no heat treatment (annealing, normalizing or tempering) state delivery. Require heat treatment delivery should be specified in the contract, no heat treatment is not indicated by delivery.