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SAE-AISI 1015 Steel vs. AISI 312 Stainless Steel

Both SAE-AISI 1015 steel and AISI 312 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1015 steel and the bottom bar is AISI 312 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 20 to 32
28
Fatigue Strength, MPa 170 to 250
370
Poisson's Ratio 0.29
0.27
Reduction in Area, % 46 to 56
56
Shear Modulus, GPa 73
80
Shear Strength, MPa 260 to 270
510
Tensile Strength: Ultimate (UTS), MPa 390 to 440
780
Tensile Strength: Yield (Proof), MPa 210 to 370
510

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1470
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 52
16
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
17
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.4
Embodied Energy, MJ/kg 18
48
Embodied Water, L/kg 45
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 110
190
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 360
640
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 14 to 15
28
Strength to Weight: Bending, points 15 to 16
24
Thermal Diffusivity, mm2/s 14
4.3
Thermal Shock Resistance, points 12 to 14
21

Alloy Composition

Carbon (C), % 0.13 to 0.18
0 to 0.030
Chromium (Cr), % 0
24 to 26
Iron (Fe), % 99.13 to 99.57
62.2 to 69.2
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0
1.2 to 2.0
Nickel (Ni), % 0
5.5 to 6.5
Nitrogen (N), % 0
0.14 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.030