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S31655 Stainless Steel vs. SAE-AISI 1015 Steel

Both S31655 stainless steel and SAE-AISI 1015 steel are iron alloys. They have 68% 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 S31655 stainless steel and the bottom bar is SAE-AISI 1015 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
120
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
20 to 32
Fatigue Strength, MPa 300
170 to 250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 490
260 to 270
Tensile Strength: Ultimate (UTS), MPa 710
390 to 440
Tensile Strength: Yield (Proof), MPa 350
210 to 370

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1010
400
Melting Completion (Liquidus), °C 1430
1470
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
52
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 17
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.3
1.4
Embodied Energy, MJ/kg 46
18
Embodied Water, L/kg 160
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 310
120 to 360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
14 to 15
Strength to Weight: Bending, points 23
15 to 16
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 16
12 to 14

Alloy Composition

Carbon (C), % 0 to 0.030
0.13 to 0.18
Chromium (Cr), % 19.5 to 21.5
0
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 63.2 to 71.9
99.13 to 99.57
Manganese (Mn), % 0 to 2.0
0.3 to 0.6
Molybdenum (Mo), % 0.5 to 1.5
0
Nickel (Ni), % 8.0 to 9.5
0
Nitrogen (N), % 0.14 to 0.25
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.015
0 to 0.050