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EN 1.6958 Steel vs. EN 1.1151 Steel

Both EN 1.6958 steel and EN 1.1151 steel are iron alloys. They have a moderately 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 1.6958 steel and the bottom bar is EN 1.1151 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
130 to 150
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
21 to 26
Fatigue Strength, MPa 700
180 to 240
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 700
300 to 330
Tensile Strength: Ultimate (UTS), MPa 1140
460 to 520
Tensile Strength: Yield (Proof), MPa 1070
240 to 340

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 450
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 47
50
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.4
Embodied Energy, MJ/kg 27
19
Embodied Water, L/kg 60
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
98 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
160 to 310
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 40
16 to 18
Strength to Weight: Bending, points 31
17 to 18
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 39
15 to 16

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0
Carbon (C), % 0.25 to 0.3
0.17 to 0.24
Chromium (Cr), % 1.2 to 1.7
0 to 0.4
Iron (Fe), % 92.6 to 94.5
97.7 to 99.43
Manganese (Mn), % 0.2 to 0.5
0.4 to 0.7
Molybdenum (Mo), % 0.35 to 0.55
0 to 0.1
Nickel (Ni), % 3.3 to 3.8
0 to 0.4
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0.15 to 0.3
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.035
Vanadium (V), % 0 to 0.12
0