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HR Sheet (Hot Rolled Sheet)

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HR Sheet (Hot Rolled Sheet)

Hot Rolled Sheets (HR Sheets) are flat steel products that are processed at high temperatures, typically above 1700°F (927°C), making the steel easier to form and shape. These sheets are known for their superior strength, durability, and workability, making them ideal for use in applications that do not require tight tolerances or a smooth surface finish. HR sheets often have a scaled, rough surface and are commonly used in the construction, automotive, and heavy machinery industries.

HR Sheets are an economical option for a wide range of structural and fabrication needs. They are widely used in the manufacturing of welded structures, pressure vessels, tanks, pipelines, and frames due to their excellent weldability and formability. Available in a variety of thicknesses and widths, hot rolled sheets offer excellent versatility, making them suitable for both industrial and general engineering applications.

E250 Chemical Composition (IS 2062)
Element Maximum (%)
Carbon (C) 0.23
Manganese (Mn) 1.50
Phosphorus (P) 0.045
Sulfur (S) 0.045
Iron (Fe) Balance
E250 Mechanical Properties
Property Typical Value Unit
Yield Strength (min) 250 MPa
Tensile Strength 410–540 MPa
Elongation (min) 23 %
Hardness ≤ 160 HB
ST42 Chemical Composition (IS 226)
Element Maximum (%)
Carbon (C) 0.23
Manganese (Mn) 1.50
Phosphorus (P) 0.045
Sulfur (S) 0.045
Iron (Fe) Balance
ST42 Mechanical Properties
Property Typical Value Unit
Yield Strength (min) 250 MPa
Tensile Strength 410–540 MPa
Elongation (min) 23 %
Hardness ≤ 160 HB
E350 Chemical Composition (IS 2062)
Element Maximum (%)
Carbon (C) 0.20
Manganese (Mn) 1.60
Phosphorus (P) 0.045
Sulfur (S) 0.045
Silicon (Si) 0.45
Iron (Fe) Balance
E350 Mechanical Properties
Property Typical Value Unit
Yield Strength (min) 350 MPa
Tensile Strength 490–630 MPa
Elongation (min) 20 %
Hardness ≤ 180 HB
E350A – Chemical Composition
Element Maximum (%)
Carbon (C) 0.20
Manganese (Mn) 1.60
Phosphorus (P) 0.045
Sulfur (S) 0.045
Silicon (Si) 0.45
E350A – Mechanical Properties
Property Value Unit
Yield Strength (min) 350 MPa
Tensile Strength 490–630 MPa
Elongation 20 %
E350B – Chemical Composition
Element Maximum (%)
Carbon (C) 0.20
Manganese (Mn) 1.60
Phosphorus (P) 0.045
Sulfur (S) 0.045
Silicon (Si) 0.45
E350B – Mechanical Properties
Property Value Unit
Yield Strength (min) 350 MPa
Tensile Strength 490–630 MPa
Elongation 22 %
Impact Energy (min) 27 J @ 0°C
E350C – Chemical Composition
Element Maximum (%)
Carbon (C) 0.20
Manganese (Mn) 1.60
Phosphorus (P) 0.040
Sulfur (S) 0.040
Silicon (Si) 0.45
E350C – Mechanical Properties
Property Value Unit
Yield Strength (min) 350 MPa
Tensile Strength 490–630 MPa
Elongation 23 %
Impact Energy (min) 27 J @ –20°C
WT41 Chemical Composition
Element Maximum (%)
Carbon (C) 0.20
Manganese (Mn) 1.50
Phosphorus (P) 0.045
Sulfur (S) 0.045
Silicon (Si) 0.40
Iron (Fe) Balance
WT41 Mechanical Properties
Property Typical Value Unit
Yield Strength (Min) 250 MPa
Tensile Strength 410–540 MPa
Elongation 23 %
Impact Toughness 27 J at 0°C
DD1079 Chemical Composition
Element Maximum (%)
Carbon (C) 0.08
Manganese (Mn) 0.45
Phosphorus (P) 0.03
Sulfur (S) 0.03
Iron (Fe) Balance
DD1079 Mechanical Properties
Property Typical Value Unit
Yield Strength 140–210 MPa
Tensile Strength 270–350 MPa
Elongation (L=80mm) ≥ 34 %
Hardness HRB ≤ 55 Rockwell B
DD1079 Chemical Composition
Element Maximum (%)
Carbon (C) 0.08
Manganese (Mn) 0.45
Phosphorus (P) 0.03
Sulfur (S) 0.03
Iron (Fe) Balance
DD1079 Mechanical Properties
Property Typical Value Unit
Yield Strength 140–210 MPa
Tensile Strength 270–350 MPa
Elongation (L=80mm) ≥ 34 %
Hardness HRB ≤ 55 Rockwell B
DD10748 Chemical Composition
Element Maximum (%)
Carbon (C) 0.08
Manganese (Mn) 0.50
Phosphorus (P) 0.03
Sulfur (S) 0.03
Iron (Fe) Balance
DD10748 Mechanical Properties
Property Typical Value Unit
Yield Strength 140–210 MPa
Tensile Strength 270–350 MPa
Elongation (L=80mm) ≥ 35 %
Hardness HRB ≤ 55 Rockwell B
HR1 Chemical Composition
Element Maximum (%)
Carbon (C) 0.12
Manganese (Mn) 0.50
Phosphorus (P) 0.040
Sulfur (S) 0.040
HR1 Mechanical Properties
Property Value Unit
Yield Strength ≥ 170 MPa
Tensile Strength 270–410 MPa
Elongation ≥ 30 %
HR2 Chemical Composition
Element Maximum (%)
Carbon (C) 0.15
Manganese (Mn) 0.60
Phosphorus (P) 0.040
Sulfur (S) 0.040
HR2 Mechanical Properties
Property Value Unit
Yield Strength ≥ 200 MPa
Tensile Strength 300–450 MPa
Elongation ≥ 28 %
HR3 Chemical Composition
Element Maximum (%)
Carbon (C) 0.20
Manganese (Mn) 0.90
Phosphorus (P) 0.040
Sulfur (S) 0.040
HR3 Mechanical Properties
Property Value Unit
Yield Strength ≥ 220 MPa
Tensile Strength 350–500 MPa
Elongation ≥ 25 %