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EN 1.6958 Steel vs. EN 1.0571 Steel

Both EN 1.6958 steel and EN 1.0571 steel are iron alloys. Both are furnished in the quenched and tempered condition. 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 1.0571 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 340
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
23
Fatigue Strength, MPa 700
220
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 700
350
Tensile Strength: Ultimate (UTS), MPa 1140
550
Tensile Strength: Yield (Proof), MPa 1070
310

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
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
2.3
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.0
1.6
Embodied Energy, MJ/kg 27
21
Embodied Water, L/kg 60
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
110
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 40
19
Strength to Weight: Bending, points 31
19
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 39
17

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0 to 0.060
Carbon (C), % 0.25 to 0.3
0 to 0.2
Chromium (Cr), % 1.2 to 1.7
0 to 0.3
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 92.6 to 94.5
96.5 to 99
Manganese (Mn), % 0.2 to 0.5
0.9 to 1.7
Molybdenum (Mo), % 0.35 to 0.55
0 to 0.080
Nickel (Ni), % 3.3 to 3.8
0 to 0.3
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0.15 to 0.3
0.1 to 0.5
Sulfur (S), % 0 to 0.015
0 to 0.015
Vanadium (V), % 0 to 0.12
0 to 0.1