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EN 1.1122 Steel vs. ASTM A372 Grade D Steel

Both EN 1.1122 steel and ASTM A372 grade D steel are iron alloys. They have a very high 98% of their average alloy composition in common. 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 EN 1.1122 steel and the bottom bar is ASTM A372 grade D steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 130
250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 21
17
Fatigue Strength, MPa 170 to 260
340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 240 to 290
500
Tensile Strength: Ultimate (UTS), MPa 340 to 460
810
Tensile Strength: Yield (Proof), MPa 240 to 370
510

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 51
51
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.1
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
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 89
120
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 360
700
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 12 to 16
29
Strength to Weight: Bending, points 14 to 17
25
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 11 to 15
26

Alloy Composition

Carbon (C), % 0.080 to 0.12
0.4 to 0.5
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 98.7 to 99.62
97.1 to 97.9
Manganese (Mn), % 0.3 to 0.6
1.4 to 1.8
Molybdenum (Mo), % 0
0.17 to 0.27
Phosphorus (P), % 0 to 0.025
0 to 0.015
Silicon (Si), % 0 to 0.3
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.010