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ASTM A242 HSLA Steel vs. EN 1.1122 Steel

Both ASTM A242 HSLA steel and EN 1.1122 steel are iron alloys. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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 1.1122 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
100 to 130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
12 to 21
Fatigue Strength, MPa 230
170 to 260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 310
240 to 290
Tensile Strength: Ultimate (UTS), MPa 490
340 to 460
Tensile Strength: Yield (Proof), MPa 330
240 to 370

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
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
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
1.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 18
18
Embodied Water, L/kg 46
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
36 to 89
Resilience: Unit (Modulus of Resilience), kJ/m3 290
160 to 360
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
12 to 16
Strength to Weight: Bending, points 17
14 to 17
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 14
11 to 15

Alloy Composition

Carbon (C), % 0 to 0.15
0.080 to 0.12
Copper (Cu), % 0.2 to 0.45
0 to 0.25
Iron (Fe), % 98.2 to 99.8
98.7 to 99.62
Manganese (Mn), % 0 to 1.0
0.3 to 0.6
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