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EN 1.1132 Steel vs. EN 1.7779 Steel

Both EN 1.1132 steel and EN 1.7779 steel are iron alloys. They have a very high 95% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.1132 steel and the bottom bar is EN 1.7779 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 140
240
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 24
16
Fatigue Strength, MPa 180 to 280
430
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 260 to 310
500
Tensile Strength: Ultimate (UTS), MPa 370 to 490
810
Tensile Strength: Yield (Proof), MPa 240 to 400
660

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
470
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
39
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
4.0
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.8
Embodied Energy, MJ/kg 18
41
Embodied Water, L/kg 46
64

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 430
1150
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 13 to 17
29
Strength to Weight: Bending, points 15 to 18
25
Thermal Diffusivity, mm2/s 14
11
Thermal Shock Resistance, points 12 to 16
23

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0.13 to 0.17
0.17 to 0.23
Chromium (Cr), % 0
3.0 to 3.3
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 98.6 to 99.57
93.8 to 95.4
Manganese (Mn), % 0.3 to 0.6
0.3 to 0.5
Molybdenum (Mo), % 0
0.5 to 0.6
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0 to 0.3
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.010
Vanadium (V), % 0
0.45 to 0.55