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S31100 Stainless Steel vs. S43037 Stainless Steel

Both S31100 stainless steel and S43037 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 85% 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 S43037 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
160
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 4.5
25
Fatigue Strength, MPa 330
160
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 580
260
Tensile Strength: Ultimate (UTS), MPa 1000
410
Tensile Strength: Yield (Proof), MPa 710
230

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 470
510
Maximum Temperature: Mechanical, °C 1100
880
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 16
9.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.1
2.3
Embodied Energy, MJ/kg 44
32
Embodied Water, L/kg 170
120

Common Calculations

PREN (Pitting Resistance) 26
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
88
Resilience: Unit (Modulus of Resilience), kJ/m3 1240
130
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 36
15
Strength to Weight: Bending, points 29
16
Thermal Diffusivity, mm2/s 4.2
6.7
Thermal Shock Resistance, points 28
14

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.030
Chromium (Cr), % 25 to 27
16 to 19
Iron (Fe), % 63.6 to 69
77.9 to 83.9
Manganese (Mn), % 0 to 1.0
0 to 1.0
Nickel (Ni), % 6.0 to 7.0
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
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
0.1 to 1.0