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ASTM A242 HSLA Steel vs. EN 1.7225 Steel

Both ASTM A242 HSLA steel and EN 1.7225 steel are iron alloys. They have a very high 98% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM A242 HSLA steel and the bottom bar is EN 1.7225 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
160 to 300
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 490
540 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
420
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
46
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.5
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.5
Embodied Energy, MJ/kg 18
20
Embodied Water, L/kg 46
51

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
19 to 65
Strength to Weight: Bending, points 17
19 to 43
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 14
16 to 54

Alloy Composition

Carbon (C), % 0 to 0.15
0.38 to 0.45
Chromium (Cr), % 0
0.9 to 1.2
Copper (Cu), % 0.2 to 0.45
0 to 0.25
Iron (Fe), % 98.2 to 99.8
96.6 to 98
Manganese (Mn), % 0 to 1.0
0.6 to 0.9
Molybdenum (Mo), % 0
0.15 to 0.3
Phosphorus (P), % 0 to 0.15
0 to 0.035
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0 to 0.050
0 to 0.035