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S31655 Stainless Steel vs. AISI 316N Stainless Steel

Both S31655 stainless steel and AISI 316N stainless steel are iron alloys. They have a very high 95% 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 316N stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
190 to 350
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
9.0 to 39
Fatigue Strength, MPa 300
230 to 450
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
78
Shear Strength, MPa 490
420 to 690
Tensile Strength: Ultimate (UTS), MPa 710
620 to 1160
Tensile Strength: Yield (Proof), MPa 350
270 to 870

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 430
410
Maximum Temperature: Mechanical, °C 1010
940
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 17
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.3
3.9
Embodied Energy, MJ/kg 46
53
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 27
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
95 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 310
180 to 1880
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
22 to 41
Strength to Weight: Bending, points 23
20 to 31
Thermal Diffusivity, mm2/s 4.0
4.1
Thermal Shock Resistance, points 16
14 to 26

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 19.5 to 21.5
16 to 18
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 63.2 to 71.9
61.9 to 71.9
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0.5 to 1.5
2.0 to 3.0
Nickel (Ni), % 8.0 to 9.5
10 to 14
Nitrogen (N), % 0.14 to 0.25
0.1 to 0.16
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.015
0 to 0.030