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S31100 Stainless Steel vs. EN 1.4597 Stainless Steel

Both S31100 stainless steel and EN 1.4597 stainless steel are iron alloys. 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 EN 1.4597 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 4.5
45
Fatigue Strength, MPa 330
300
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Shear Strength, MPa 580
470
Tensile Strength: Ultimate (UTS), MPa 1000
680
Tensile Strength: Yield (Proof), MPa 710
330

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 470
410
Maximum Temperature: Mechanical, °C 1100
860
Melting Completion (Liquidus), °C 1420
1400
Melting Onset (Solidus), °C 1380
1350
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
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 16
11
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.1
2.5
Embodied Energy, MJ/kg 44
36
Embodied Water, L/kg 170
140

Common Calculations

PREN (Pitting Resistance) 26
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
250
Resilience: Unit (Modulus of Resilience), kJ/m3 1240
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 36
25
Strength to Weight: Bending, points 29
22
Thermal Diffusivity, mm2/s 4.2
4.1
Thermal Shock Resistance, points 28
15

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.1
Chromium (Cr), % 25 to 27
15 to 18
Copper (Cu), % 0
2.0 to 3.5
Iron (Fe), % 63.6 to 69
63 to 76.4
Manganese (Mn), % 0 to 1.0
6.5 to 9.0
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 6.0 to 7.0
0 to 3.0
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0 to 0.25
0