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EN 1.6958 Steel vs. EN 1.0434 Steel

Both EN 1.6958 steel and EN 1.0434 steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, 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 1.0434 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
110 to 160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
12 to 28
Fatigue Strength, MPa 700
190 to 300
Poisson's Ratio 0.29
0.29
Reduction in Area, % 56
64 to 74
Shear Modulus, GPa 73
73
Shear Strength, MPa 700
280 to 330
Tensile Strength: Ultimate (UTS), MPa 1140
390 to 540
Tensile Strength: Yield (Proof), MPa 1070
250 to 450

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
52
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
1.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.0
1.4
Embodied Energy, MJ/kg 27
18
Embodied Water, L/kg 60
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
39 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
170 to 540
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 40
14 to 19
Strength to Weight: Bending, points 31
15 to 19
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 39
12 to 17

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0.020 to 0.060
Carbon (C), % 0.25 to 0.3
0.15 to 0.19
Chromium (Cr), % 1.2 to 1.7
0
Iron (Fe), % 92.6 to 94.5
98.8 to 99.18
Manganese (Mn), % 0.2 to 0.5
0.65 to 0.85
Molybdenum (Mo), % 0.35 to 0.55
0
Nickel (Ni), % 3.3 to 3.8
0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0.15 to 0.3
0 to 0.1
Sulfur (S), % 0 to 0.015
0 to 0.025
Vanadium (V), % 0 to 0.12
0