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S31100 Stainless Steel vs. AISI 310MoLN Stainless Steel

Both S31100 stainless steel and AISI 310MoLN stainless steel are iron alloys. Both are furnished in the annealed condition. 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 (3, in this case) are not shown.

For each property being compared, the top bar is S31100 stainless steel and the bottom bar is AISI 310MoLN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 4.5
28
Fatigue Strength, MPa 330
210
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
80
Shear Strength, MPa 580
400
Tensile Strength: Ultimate (UTS), MPa 1000
610
Tensile Strength: Yield (Proof), MPa 710
290

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 470
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
14
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 16
28
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.1
5.0
Embodied Energy, MJ/kg 44
70
Embodied Water, L/kg 170
200

Common Calculations

PREN (Pitting Resistance) 26
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
140
Resilience: Unit (Modulus of Resilience), kJ/m3 1240
200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 36
21
Strength to Weight: Bending, points 29
20
Thermal Diffusivity, mm2/s 4.2
3.7
Thermal Shock Resistance, points 28
14

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.020
Chromium (Cr), % 25 to 27
24 to 26
Iron (Fe), % 63.6 to 69
45.2 to 53.8
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
1.6 to 2.6
Nickel (Ni), % 6.0 to 7.0
20.5 to 23.5
Nitrogen (N), % 0
0.090 to 0.15
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0 to 0.25
0