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S31100 Stainless Steel vs. EN 1.4369 Stainless Steel

Both S31100 stainless steel and EN 1.4369 stainless steel are iron alloys. They have a moderately high 92% 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 EN 1.4369 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 4.5
40
Fatigue Strength, MPa 330
330
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
77
Shear Strength, MPa 580
580
Tensile Strength: Ultimate (UTS), MPa 1000
850
Tensile Strength: Yield (Proof), MPa 710
390

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 470
420
Maximum Temperature: Mechanical, °C 1100
940
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1380
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 16
14
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.1
3.0
Embodied Energy, MJ/kg 44
43
Embodied Water, L/kg 170
150

Common Calculations

PREN (Pitting Resistance) 26
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
280
Resilience: Unit (Modulus of Resilience), kJ/m3 1240
380
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 36
31
Strength to Weight: Bending, points 29
26
Thermal Diffusivity, mm2/s 4.2
4.0
Thermal Shock Resistance, points 28
18

Alloy Composition

Carbon (C), % 0 to 0.060
0.070 to 0.15
Chromium (Cr), % 25 to 27
17.5 to 19.5
Iron (Fe), % 63.6 to 69
63 to 70.2
Manganese (Mn), % 0 to 1.0
5.0 to 7.5
Nickel (Ni), % 6.0 to 7.0
6.5 to 8.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0.5 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Titanium (Ti), % 0 to 0.25
0