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S31655 Stainless Steel vs. EN 1.4597 Stainless Steel

Both S31655 stainless steel and EN 1.4597 stainless steel are iron alloys. They have 88% 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 S31655 stainless steel and the bottom bar is EN 1.4597 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
45
Fatigue Strength, MPa 300
300
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Shear Strength, MPa 490
470
Tensile Strength: Ultimate (UTS), MPa 710
680
Tensile Strength: Yield (Proof), MPa 350
330

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 430
410
Maximum Temperature: Mechanical, °C 1010
860
Melting Completion (Liquidus), °C 1430
1400
Melting Onset (Solidus), °C 1380
1350
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 17
11
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.3
2.5
Embodied Energy, MJ/kg 46
36
Embodied Water, L/kg 160
140

Common Calculations

PREN (Pitting Resistance) 27
21
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
250
Resilience: Unit (Modulus of Resilience), kJ/m3 310
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
25
Strength to Weight: Bending, points 23
22
Thermal Diffusivity, mm2/s 4.0
4.1
Thermal Shock Resistance, points 16
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 19.5 to 21.5
15 to 18
Copper (Cu), % 0 to 1.0
2.0 to 3.5
Iron (Fe), % 63.2 to 71.9
63 to 76.4
Manganese (Mn), % 0 to 2.0
6.5 to 9.0
Molybdenum (Mo), % 0.5 to 1.5
0 to 1.0
Nickel (Ni), % 8.0 to 9.5
0 to 3.0
Nitrogen (N), % 0.14 to 0.25
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 0.015
0 to 0.030