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SAE-AISI 50B44 Steel vs. ASTM A182 Grade F36

Both SAE-AISI 50B44 steel and ASTM A182 grade F36 are iron alloys. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is SAE-AISI 50B44 steel and the bottom bar is ASTM A182 grade F36.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
220
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 22
17
Fatigue Strength, MPa 250
330
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 360
440
Tensile Strength: Ultimate (UTS), MPa 570
710
Tensile Strength: Yield (Proof), MPa 360
490

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
410
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
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
3.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.7
Embodied Energy, MJ/kg 19
22
Embodied Water, L/kg 48
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 350
650
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
25
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 12
10
Thermal Shock Resistance, points 17
21

Alloy Composition

Aluminum (Al), % 0
0 to 0.050
Boron (B), % 0.00050 to 0.0030
0
Carbon (C), % 0.43 to 0.48
0.1 to 0.17
Chromium (Cr), % 0.2 to 0.6
0 to 0.3
Copper (Cu), % 0
0.5 to 0.8
Iron (Fe), % 97.5 to 98.5
95 to 97.1
Manganese (Mn), % 0.75 to 1.0
0.8 to 1.2
Molybdenum (Mo), % 0
0.25 to 0.5
Nickel (Ni), % 0
1.0 to 1.3
Niobium (Nb), % 0
0.015 to 0.045
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0.15 to 0.35
0.25 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.025
Vanadium (V), % 0
0 to 0.020