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SAE-AISI 4150 Steel vs. AISI 317LMN Stainless Steel

Both SAE-AISI 4150 steel and AISI 317LMN stainless steel are iron alloys. They have 62% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4150 steel and the bottom bar is AISI 317LMN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 380
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 20
45
Fatigue Strength, MPa 260 to 780
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
79
Shear Strength, MPa 410 to 800
430
Tensile Strength: Ultimate (UTS), MPa 660 to 1310
620
Tensile Strength: Yield (Proof), MPa 380 to 1220
270

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
1020
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 42
14
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
24
Density, g/cm3 7.8
8.0
Embodied Carbon, kg CO2/kg material 1.5
4.8
Embodied Energy, MJ/kg 20
65
Embodied Water, L/kg 51
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82 to 180
230
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 3930
180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 47
22
Strength to Weight: Bending, points 22 to 34
20
Thermal Diffusivity, mm2/s 11
3.8
Thermal Shock Resistance, points 19 to 39
14

Alloy Composition

Carbon (C), % 0.48 to 0.53
0 to 0.030
Chromium (Cr), % 0.8 to 1.1
17 to 20
Iron (Fe), % 96.7 to 97.7
54.4 to 65.4
Manganese (Mn), % 0.75 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.15 to 0.25
4.0 to 5.0
Nickel (Ni), % 0
13.5 to 17.5
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.035
0 to 0.045
Silicon (Si), % 0.15 to 0.35
0 to 0.75
Sulfur (S), % 0 to 0.040
0 to 0.030