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S34565 Stainless Steel vs. S31100 Stainless Steel

Both S34565 stainless steel and S31100 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 79% 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 S34565 stainless steel and the bottom bar is S31100 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
270
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 39
4.5
Fatigue Strength, MPa 400
330
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 80
79
Shear Strength, MPa 610
580
Tensile Strength: Ultimate (UTS), MPa 900
1000
Tensile Strength: Yield (Proof), MPa 470
710

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 450
470
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 12
16
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 28
16
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 5.3
3.1
Embodied Energy, MJ/kg 73
44
Embodied Water, L/kg 210
170

Common Calculations

PREN (Pitting Resistance) 47
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 300
40
Resilience: Unit (Modulus of Resilience), kJ/m3 540
1240
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32
36
Strength to Weight: Bending, points 26
29
Thermal Diffusivity, mm2/s 3.2
4.2
Thermal Shock Resistance, points 22
28

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 23 to 25
25 to 27
Iron (Fe), % 43.2 to 51.6
63.6 to 69
Manganese (Mn), % 5.0 to 7.0
0 to 1.0
Molybdenum (Mo), % 4.0 to 5.0
0
Nickel (Ni), % 16 to 18
6.0 to 7.0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0.4 to 0.6
0
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0
0 to 0.25