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AISI 444 Stainless Steel vs. AISI 310MoLN Stainless Steel

Both AISI 444 stainless steel and AISI 310MoLN stainless steel are iron alloys. Both are furnished in the annealed condition. They have 71% of their average alloy composition in common. There are 34 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 AISI 444 stainless steel and the bottom bar is AISI 310MoLN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
28
Fatigue Strength, MPa 210
210
Poisson's Ratio 0.28
0.28
Rockwell B Hardness 83
84
Shear Modulus, GPa 78
80
Shear Strength, MPa 300
400
Tensile Strength: Ultimate (UTS), MPa 470
610
Tensile Strength: Yield (Proof), MPa 310
290

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 580
450
Maximum Temperature: Mechanical, °C 930
1100
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 23
14
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 15
28
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.4
5.0
Embodied Energy, MJ/kg 47
70
Embodied Water, L/kg 130
200

Common Calculations

PREN (Pitting Resistance) 26
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
140
Resilience: Unit (Modulus of Resilience), kJ/m3 240
200
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 17
20
Thermal Diffusivity, mm2/s 6.2
3.7
Thermal Shock Resistance, points 16
14

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.020
Chromium (Cr), % 17.5 to 19.5
24 to 26
Iron (Fe), % 73.3 to 80.8
45.2 to 53.8
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 1.8 to 2.5
1.6 to 2.6
Nickel (Ni), % 0 to 1.0
20.5 to 23.5
Niobium (Nb), % 0.2 to 0.8
0
Nitrogen (N), % 0 to 0.035
0.090 to 0.15
Phosphorus (P), % 0 to 0.040
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), % 0.2 to 0.8
0