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S44627 Stainless Steel vs. AISI 310MoLN Stainless Steel

Both S44627 stainless steel and AISI 310MoLN stainless steel are iron alloys. Both are furnished in the annealed condition. They have 76% of their average alloy composition in common.

For each property being compared, the top bar is S44627 stainless steel and the bottom bar is AISI 310MoLN stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
190
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 24
28
Fatigue Strength, MPa 200
210
Poisson's Ratio 0.27
0.28
Reduction in Area, % 51
45
Rockwell B Hardness 79
84
Shear Modulus, GPa 80
80
Shear Strength, MPa 310
400
Tensile Strength: Ultimate (UTS), MPa 490
610
Tensile Strength: Yield (Proof), MPa 300
290

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 470
450
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
14
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 14
28
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 2.9
5.0
Embodied Energy, MJ/kg 41
70
Embodied Water, L/kg 160
200

Common Calculations

PREN (Pitting Resistance) 30
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
140
Resilience: Unit (Modulus of Resilience), kJ/m3 220
200
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 18
21
Strength to Weight: Bending, points 18
20
Thermal Diffusivity, mm2/s 4.6
3.7
Thermal Shock Resistance, points 16
14

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.020
Chromium (Cr), % 25 to 27.5
24 to 26
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 69.2 to 74.2
45.2 to 53.8
Manganese (Mn), % 0 to 0.4
0 to 2.0
Molybdenum (Mo), % 0.75 to 1.5
1.6 to 2.6
Nickel (Ni), % 0 to 0.5
20.5 to 23.5
Niobium (Nb), % 0.050 to 0.2
0
Nitrogen (N), % 0 to 0.015
0.090 to 0.15
Phosphorus (P), % 0 to 0.020
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.020
0 to 0.010