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SAE-AISI 4147 Steel vs. SAE-AISI 9310 Steel

Both SAE-AISI 4147 steel and SAE-AISI 9310 steel are iron alloys. They have a very high 96% of their average alloy composition in common. 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 4147 steel and the bottom bar is SAE-AISI 9310 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
540 to 610
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
17 to 19
Fatigue Strength, MPa 260
300 to 390
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 380
510 to 570
Tensile Strength: Ultimate (UTS), MPa 610
820 to 910
Tensile Strength: Yield (Proof), MPa 380
450 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
440
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 44
48
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
4.4
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
1.8
Embodied Energy, MJ/kg 20
24
Embodied Water, L/kg 51
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
120 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 380
540 to 860
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
29 to 32
Strength to Weight: Bending, points 20
25 to 27
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 20
24 to 27

Alloy Composition

Carbon (C), % 0.45 to 0.5
0.080 to 0.13
Chromium (Cr), % 0.8 to 1.1
1.0 to 1.4
Iron (Fe), % 96.7 to 97.7
93.8 to 95.2
Manganese (Mn), % 0.75 to 1.0
0.45 to 0.65
Molybdenum (Mo), % 0.15 to 0.25
0.080 to 0.15
Nickel (Ni), % 0
3.0 to 3.5
Phosphorus (P), % 0 to 0.035
0 to 0.015
Silicon (Si), % 0.15 to 0.35
0.2 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.012