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Carbon Steel Sheet

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Carbon Steel Sheet

Carbon steel sheets are widely used in various industrial applications due to their excellent strength, durability, and affordability. These sheets are composed primarily of iron and carbon, with small amounts of other elements to enhance performance. Depending on the carbon content (low, medium, or high), the sheets can exhibit different levels of hardness, ductility, and tensile strength, making them suitable for applications ranging from automotive panels to structural components.

The versatility of carbon steel sheets lies in their ability to be easily fabricated, welded, and machined while maintaining structural integrity under stress. They are commonly available in hot-rolled or cold-rolled forms and come in various thicknesses and finishes. Carbon steel sheets are widely used in industries such as construction, manufacturing, shipbuilding, and heavy equipment, where high load-bearing capacity and cost-effectiveness are essential.

C55 Chemical Composition
Element Content (%)
Carbon (C) 0.50 – 0.60
Manganese (Mn) 0.60 – 0.90
Silicon (Si) ≤ 0.40
Phosphorus (P) ≤ 0.04
Sulfur (S) ≤ 0.05
Iron (Fe) Balance
C55 Mechanical Properties
Property Value Unit
Tensile Strength 650 – 850 MPa
Yield Strength ~450 MPa
Elongation ~14 %
Hardness 170 – 225 HB
C45 Chemical Composition
Element Content (%)
Carbon (C) 0.42 – 0.50
Manganese (Mn) 0.50 – 0.80
Silicon (Si) ≤ 0.40
Phosphorus (P) ≤ 0.04
Sulfur (S) ≤ 0.04
Iron (Fe) Balance
C45 Mechanical Properties
Property Typical Value Unit
Tensile Strength 570 – 700 MPa
Yield Strength 330 – 500 MPa
Elongation ~16 %
Hardness 170 – 210 HB
EN8 Chemical Composition
Element Content (%)
Carbon (C) 0.35 – 0.45
Manganese (Mn) 0.60 – 1.00
Silicon (Si) ≤ 0.05
Phosphorus (P) ≤ 0.05
Sulfur (S) ≤ 0.05
EN8 Mechanical Properties
Property Value Unit
Tensile Strength 550 – 700 MPa
Yield Strength ~300 MPa
Elongation ~16 %
Hardness 170 – 220 HB
EN9 Chemical Composition
Element Content (%)
Carbon (C) 0.50 – 0.60
Manganese (Mn) 0.70 – 1.00
Silicon (Si) ≤ 0.05
Phosphorus (P) ≤ 0.05
Sulfur (S) ≤ 0.05
EN9 Mechanical Properties
Property Value Unit
Tensile Strength 600 – 800 MPa
Yield Strength 350 – 500 MPa
Elongation 12 – 14 %
Hardness 190 – 250 HB
C80 Chemical Composition
Element Content (%)
Carbon (C) 0.75 – 0.85
Manganese (Mn) 0.60 – 0.90
Silicon (Si) ≤ 0.40
Phosphorus (P) ≤ 0.035
Sulfur (S) ≤ 0.035
Iron (Fe) Balance
C80 Mechanical Properties
Property Typical Value Unit
Tensile Strength 700 – 950 MPa
Yield Strength ~500 MPa
Elongation ~10 – 14 %
Hardness 200 – 240 HB
C80 Chemical Composition
Element Content (%)
Carbon (C) 0.75 – 0.85
Manganese (Mn) 0.60 – 0.90
Silicon (Si) ≤ 0.40
Phosphorus (P) ≤ 0.035
Sulfur (S) ≤ 0.035
Iron (Fe) Balance
C80 Mechanical Properties
Property Typical Value Unit
Tensile Strength 700 – 950 MPa
Yield Strength ~500 MPa
Elongation ~10 – 14 %
Hardness 200 – 240 HB