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EN 1.6957 Steel vs. EN 1.6571 Steel

Both EN 1.6957 steel and EN 1.6571 steel are iron alloys. They have a very high 97% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.6957 steel and the bottom bar is EN 1.6571 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280
160 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 930
520 to 1460

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 450
420
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
40
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
3.4
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 2.1
1.7
Embodied Energy, MJ/kg 29
22
Embodied Water, L/kg 60
53

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 33
19 to 51
Strength to Weight: Bending, points 27
18 to 36
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 27
15 to 43

Alloy Composition

Carbon (C), % 0.22 to 0.32
0.16 to 0.23
Chromium (Cr), % 1.2 to 1.8
0.6 to 0.9
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 92.7 to 94.7
95.3 to 97.1
Manganese (Mn), % 0.15 to 0.4
0.5 to 0.9
Molybdenum (Mo), % 0.25 to 0.45
0.25 to 0.35
Nickel (Ni), % 3.4 to 4.0
1.4 to 1.7
Phosphorus (P), % 0 to 0.010
0 to 0.025
Silicon (Si), % 0 to 0.15
0 to 0.3
Sulfur (S), % 0 to 0.0070
0.020 to 0.040
Vanadium (V), % 0.050 to 0.15
0