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SAE-AISI 1070 Steel vs. SAE-AISI 50B60 Steel

Both SAE-AISI 1070 steel and SAE-AISI 50B60 steel are iron alloys. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1070 steel and the bottom bar is SAE-AISI 50B60 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 230
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10 to 13
12 to 20
Fatigue Strength, MPa 270 to 350
240 to 330
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
72
Shear Strength, MPa 380 to 460
380
Tensile Strength: Ultimate (UTS), MPa 640 to 760
610 to 630
Tensile Strength: Yield (Proof), MPa 420 to 560
350 to 530

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
410
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
45
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
2.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
19
Embodied Water, L/kg 46
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59 to 86
71 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 470 to 850
330 to 750
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 23 to 27
22 to 23
Strength to Weight: Bending, points 21 to 24
20 to 21
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 21 to 25
20

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0.65 to 0.75
0.56 to 0.64
Chromium (Cr), % 0
0.4 to 0.6
Iron (Fe), % 98.3 to 98.8
97.3 to 98.1
Manganese (Mn), % 0.6 to 0.9
0.75 to 1.0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0 to 0.050
0 to 0.040