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EN 1.6956 Steel vs. SAE-AISI 1146 Steel

Both EN 1.6956 steel and SAE-AISI 1146 steel are iron alloys. They have a moderately high 94% 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 1.6956 steel and the bottom bar is SAE-AISI 1146 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 370
190 to 200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 9.6
13 to 17
Fatigue Strength, MPa 680
240 to 400
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
72
Shear Strength, MPa 730
410 to 440
Tensile Strength: Ultimate (UTS), MPa 1230
670 to 730
Tensile Strength: Yield (Proof), MPa 1120
360 to 630

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 440
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 46
51
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.2
1.4
Embodied Energy, MJ/kg 31
18
Embodied Water, L/kg 60
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
93 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 3320
340 to 1050
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 43
24 to 26
Strength to Weight: Bending, points 32
22 to 23
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 36
20 to 22

Alloy Composition

Carbon (C), % 0.28 to 0.38
0.42 to 0.49
Chromium (Cr), % 1.0 to 1.7
0
Iron (Fe), % 92.4 to 95.3
98.3 to 98.8
Manganese (Mn), % 0.15 to 0.4
0.7 to 1.0
Molybdenum (Mo), % 0.3 to 0.6
0
Nickel (Ni), % 2.9 to 3.8
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.035
0.080 to 0.13
Vanadium (V), % 0.080 to 0.25
0