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S31100 Stainless Steel vs. AISI 301L Stainless Steel

Both S31100 stainless steel and AISI 301L 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 (1, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
210 to 320
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 4.5
22 to 50
Fatigue Strength, MPa 330
240 to 530
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 580
440 to 660
Tensile Strength: Ultimate (UTS), MPa 1000
620 to 1040
Tensile Strength: Yield (Proof), MPa 710
250 to 790

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 470
410
Maximum Temperature: Mechanical, °C 1100
890
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.3
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
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
210 to 300
Resilience: Unit (Modulus of Resilience), kJ/m3 1240
160 to 1580
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 36
22 to 37
Strength to Weight: Bending, points 29
21 to 29
Thermal Diffusivity, mm2/s 4.2
4.1
Thermal Shock Resistance, points 28
14 to 24

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.030
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 0.2
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