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AISI 310MoLN Stainless Steel vs. S31254 Stainless Steel

Both AISI 310MoLN stainless steel and S31254 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 91% of their average alloy composition in common.

For each property being compared, the top bar is AISI 310MoLN stainless steel and the bottom bar is S31254 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
40
Fatigue Strength, MPa 210
290
Poisson's Ratio 0.28
0.28
Reduction in Area, % 45
56
Rockwell B Hardness 84
84
Shear Modulus, GPa 80
80
Shear Strength, MPa 400
490
Tensile Strength: Ultimate (UTS), MPa 610
720
Tensile Strength: Yield (Proof), MPa 290
330

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 450
420
Maximum Temperature: Mechanical, °C 1100
1090
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 14
14
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 28
28
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 5.0
5.5
Embodied Energy, MJ/kg 70
74
Embodied Water, L/kg 200
190

Common Calculations

PREN (Pitting Resistance) 34
44
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
240
Resilience: Unit (Modulus of Resilience), kJ/m3 200
270
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 21
25
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 3.7
3.8
Thermal Shock Resistance, points 14
15

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.020
Chromium (Cr), % 24 to 26
19.5 to 20.5
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 45.2 to 53.8
51.4 to 56.3
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 1.6 to 2.6
6.0 to 6.5
Nickel (Ni), % 20.5 to 23.5
17.5 to 18.5
Nitrogen (N), % 0.090 to 0.15
0.18 to 0.22
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.010