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EN 1.6570 Steel vs. SAE-AISI 4012 Steel

Both EN 1.6570 steel and SAE-AISI 4012 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 30 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 1.6570 steel and the bottom bar is SAE-AISI 4012 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270 to 340
130
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
23
Fatigue Strength, MPa 500 to 660
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 910 to 1130
420
Tensile Strength: Yield (Proof), MPa 760 to 1060
220

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 40
51
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.7
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.8
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
2.1
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.5
Embodied Energy, MJ/kg 23
19
Embodied Water, L/kg 56
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120 to 140
82
Resilience: Unit (Modulus of Resilience), kJ/m3 1520 to 3010
130
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 32 to 40
15
Strength to Weight: Bending, points 27 to 31
16
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 27 to 33
12

Alloy Composition

Carbon (C), % 0.28 to 0.35
0.090 to 0.14
Chromium (Cr), % 1.0 to 1.4
0
Iron (Fe), % 94 to 96.2
98.2 to 98.9
Manganese (Mn), % 0.6 to 1.0
0.75 to 1.0
Molybdenum (Mo), % 0.3 to 0.5
0.15 to 0.25
Nickel (Ni), % 1.6 to 2.1
0
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.6
0.15 to 0.35
Sulfur (S), % 0 to 0.015
0 to 0.040