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SAE-AISI 1050 Steel vs. S30415 Stainless Steel

Both SAE-AISI 1050 steel and S30415 stainless steel are iron alloys. They have 70% 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 1050 steel and the bottom bar is S30415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 220
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 17
45
Fatigue Strength, MPa 260 to 400
300
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Shear Strength, MPa 430 to 470
470
Tensile Strength: Ultimate (UTS), MPa 690 to 790
670
Tensile Strength: Yield (Proof), MPa 390 to 650
330

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
940
Melting Completion (Liquidus), °C 1460
1410
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
21
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
15
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.1
Embodied Energy, MJ/kg 18
43
Embodied Water, L/kg 46
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 100
250
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 1130
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 28
24
Strength to Weight: Bending, points 22 to 24
22
Thermal Diffusivity, mm2/s 14
5.6
Thermal Shock Resistance, points 22 to 25
15

Alloy Composition

Carbon (C), % 0.48 to 0.55
0.040 to 0.060
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0
18 to 19
Iron (Fe), % 98.5 to 98.9
67.8 to 71.8
Manganese (Mn), % 0.6 to 0.9
0 to 0.8
Nickel (Ni), % 0
9.0 to 10
Nitrogen (N), % 0
0.12 to 0.18
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
1.0 to 2.0
Sulfur (S), % 0 to 0.050
0 to 0.030