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EN 1.6957 Steel vs. SAE-AISI 1151 Steel

Both EN 1.6957 steel and SAE-AISI 1151 steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, 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 1151 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280
210 to 220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18
11 to 17
Fatigue Strength, MPa 530
260 to 410
Poisson's Ratio 0.29
0.29
Reduction in Area, % 46
34 to 40
Shear Modulus, GPa 73
72
Shear Strength, MPa 570
430 to 480
Tensile Strength: Ultimate (UTS), MPa 930
710 to 800
Tensile Strength: Yield (Proof), MPa 780
390 to 660

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
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
10
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
12

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.1
1.4
Embodied Energy, MJ/kg 29
18
Embodied Water, L/kg 60
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
86 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 1630
400 to 1170
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 33
25 to 28
Strength to Weight: Bending, points 27
22 to 24
Thermal Diffusivity, mm2/s 13
14
Thermal Shock Resistance, points 27
22 to 25

Alloy Composition

Carbon (C), % 0.22 to 0.32
0.48 to 0.55
Chromium (Cr), % 1.2 to 1.8
0
Iron (Fe), % 92.7 to 94.7
98.3 to 98.7
Manganese (Mn), % 0.15 to 0.4
0.7 to 1.0
Molybdenum (Mo), % 0.25 to 0.45
0
Nickel (Ni), % 3.4 to 4.0
0
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.15
0
Sulfur (S), % 0 to 0.0070
0.080 to 0.13
Vanadium (V), % 0.050 to 0.15
0