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SAE-AISI 50B50 Steel vs. SAE-AISI 1132 Steel

Both SAE-AISI 50B50 steel and SAE-AISI 1132 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 50B50 steel and the bottom bar is SAE-AISI 1132 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190 to 210
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
14 to 18
Fatigue Strength, MPa 260
240 to 380
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 370
400 to 440
Tensile Strength: Ultimate (UTS), MPa 590
640 to 720
Tensile Strength: Yield (Proof), MPa 370
350 to 590

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
51
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
1.9
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 48
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
93 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 370
330 to 940
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21
23 to 25
Strength to Weight: Bending, points 20
21 to 23
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 17
19 to 22

Alloy Composition

Boron (B), % 0.00050 to 0.0030
0
Carbon (C), % 0.48 to 0.53
0.24 to 0.34
Chromium (Cr), % 0.4 to 0.6
0
Iron (Fe), % 97.4 to 98.2
97.8 to 98.3
Manganese (Mn), % 0.75 to 1.0
1.4 to 1.7
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.040
0.080 to 0.13