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S31655 Stainless Steel vs. SAE-AISI 1117 Steel

Both S31655 stainless steel and SAE-AISI 1117 steel are iron alloys. They have 69% 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 1117 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
140 to 150
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
17 to 26
Fatigue Strength, MPa 300
190 to 300
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 490
320 to 330
Tensile Strength: Ultimate (UTS), MPa 710
490 to 540
Tensile Strength: Yield (Proof), MPa 350
260 to 460

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1010
400
Melting Completion (Liquidus), °C 1430
1460
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
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 17
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
1.4
Embodied Energy, MJ/kg 46
18
Embodied Water, L/kg 160
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
86 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 310
180 to 550
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
17 to 19
Strength to Weight: Bending, points 23
18 to 19
Thermal Diffusivity, mm2/s 4.0
14
Thermal Shock Resistance, points 16
15 to 17

Alloy Composition

Carbon (C), % 0 to 0.030
0.14 to 0.2
Chromium (Cr), % 19.5 to 21.5
0
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 63.2 to 71.9
98.3 to 98.8
Manganese (Mn), % 0 to 2.0
1.0 to 1.3
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
0.080 to 0.13