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ASTM A242 HSLA Steel vs. EN 1.7131 Steel

Both ASTM A242 HSLA steel and EN 1.7131 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 1.7131 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
140 to 170
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
470 to 1390

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
45
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
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.2
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
19
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
17 to 49
Strength to Weight: Bending, points 17
17 to 35
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 14
14 to 41

Alloy Composition

Carbon (C), % 0 to 0.15
0.14 to 0.19
Chromium (Cr), % 0
0.8 to 1.1
Copper (Cu), % 0.2 to 0.45
0 to 0.25
Iron (Fe), % 98.2 to 99.8
96.8 to 98.1
Manganese (Mn), % 0 to 1.0
1.0 to 1.3
Phosphorus (P), % 0 to 0.15
0 to 0.025
Silicon (Si), % 0
0 to 0.3
Sulfur (S), % 0 to 0.050
0 to 0.025