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EN 1.6957 Steel vs. SAE-AISI 94B17 Steel

Both EN 1.6957 steel and SAE-AISI 94B17 steel are iron alloys. They have a very 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 1.6957 steel and the bottom bar is SAE-AISI 94B17 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18
25
Fatigue Strength, MPa 530
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 570
280
Tensile Strength: Ultimate (UTS), MPa 930
440
Tensile Strength: Yield (Proof), MPa 780
270

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 450
410
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
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
2.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.1
1.5
Embodied Energy, MJ/kg 29
20
Embodied Water, L/kg 60
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
96
Resilience: Unit (Modulus of Resilience), kJ/m3 1630
200
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 33
16
Strength to Weight: Bending, points 27
16
Thermal Diffusivity, mm2/s 13
10
Thermal Shock Resistance, points 27
13

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0.22 to 0.32
0.15 to 0.2
Chromium (Cr), % 1.2 to 1.8
0.3 to 0.5
Iron (Fe), % 92.7 to 94.7
97.1 to 98.3
Manganese (Mn), % 0.15 to 0.4
0.75 to 1.0
Molybdenum (Mo), % 0.25 to 0.45
0.080 to 0.15
Nickel (Ni), % 3.4 to 4.0
0.3 to 0.6
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0 to 0.15
0.15 to 0.35
Sulfur (S), % 0 to 0.0070
0 to 0.040
Vanadium (V), % 0.050 to 0.15
0