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S31100 Stainless Steel vs. AISI 301 Stainless Steel

Both S31100 stainless steel and AISI 301 stainless steel are iron alloys. They have a moderately high 91% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S31100 stainless steel and the bottom bar is AISI 301 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
190 to 440
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 4.5
7.4 to 46
Fatigue Strength, MPa 330
210 to 600
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 580
410 to 860
Tensile Strength: Ultimate (UTS), MPa 1000
590 to 1460
Tensile Strength: Yield (Proof), MPa 710
230 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 470
410
Maximum Temperature: Mechanical, °C 1100
840
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 16
13
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.1
2.7
Embodied Energy, MJ/kg 44
39
Embodied Water, L/kg 170
130

Common Calculations

PREN (Pitting Resistance) 26
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
99 to 300
Resilience: Unit (Modulus of Resilience), kJ/m3 1240
130 to 2970
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 36
21 to 52
Strength to Weight: Bending, points 29
20 to 37
Thermal Diffusivity, mm2/s 4.2
4.2
Thermal Shock Resistance, points 28
12 to 31

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.15
Chromium (Cr), % 25 to 27
16 to 18
Iron (Fe), % 63.6 to 69
70.7 to 78
Manganese (Mn), % 0 to 1.0
0 to 2.0
Nickel (Ni), % 6.0 to 7.0
6.0 to 8.0
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.045
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.25
0