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EN 1.1122 Steel vs. EN 1.0070 Steel

Both EN 1.1122 steel and EN 1.0070 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 EN 1.1122 steel and the bottom bar is EN 1.0070 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 130
210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 21
9.1
Fatigue Strength, MPa 170 to 260
210
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 240 to 290
440
Tensile Strength: Ultimate (UTS), MPa 340 to 460
740
Tensile Strength: Yield (Proof), MPa 240 to 370
350

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
53
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
6.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
7.8

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.7
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
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 89
56
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 360
320
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 12 to 16
26
Strength to Weight: Bending, points 14 to 17
23
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 11 to 15
23

Alloy Composition

Carbon (C), % 0.080 to 0.12
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 98.7 to 99.62
99.876 to 100
Manganese (Mn), % 0.3 to 0.6
0
Nitrogen (N), % 0
0 to 0.014
Phosphorus (P), % 0 to 0.025
0 to 0.055
Silicon (Si), % 0 to 0.3
0
Sulfur (S), % 0 to 0.025
0 to 0.055