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S31655 Stainless Steel vs. AISI 416 Stainless Steel

Both S31655 stainless steel and AISI 416 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is S31655 stainless steel and the bottom bar is AISI 416 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
230 to 320
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
13 to 31
Fatigue Strength, MPa 300
230 to 340
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Shear Strength, MPa 490
340 to 480
Tensile Strength: Ultimate (UTS), MPa 710
510 to 800
Tensile Strength: Yield (Proof), MPa 350
290 to 600

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 430
390
Maximum Temperature: Mechanical, °C 1010
680
Melting Completion (Liquidus), °C 1430
1530
Melting Onset (Solidus), °C 1380
1480
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
30
Thermal Expansion, µm/m-K 16
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 17
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.3
1.9
Embodied Energy, MJ/kg 46
27
Embodied Water, L/kg 160
100

Common Calculations

PREN (Pitting Resistance) 27
13
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
98 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 310
220 to 940
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
18 to 29
Strength to Weight: Bending, points 23
18 to 25
Thermal Diffusivity, mm2/s 4.0
8.1
Thermal Shock Resistance, points 16
19 to 30

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 19.5 to 21.5
12 to 14
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 63.2 to 71.9
83.2 to 87.9
Manganese (Mn), % 0 to 2.0
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 0.060
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0.15 to 0.35