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EN 1.6958 Steel vs. EN 1.0402 Steel

Both EN 1.6958 steel and EN 1.0402 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 1.0402 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
24
Fatigue Strength, MPa 700
170
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 700
290
Tensile Strength: Ultimate (UTS), MPa 1140
460
Tensile Strength: Yield (Proof), MPa 1070
240

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
94
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
150
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 40
16
Strength to Weight: Bending, points 31
17
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 39
15

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 0.045
Silicon (Si), % 0.15 to 0.3
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.045
Vanadium (V), % 0 to 0.12
0