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EN 1.4905 Stainless Steel vs. S31655 Stainless Steel

Both EN 1.4905 stainless steel and S31655 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4905 stainless steel and the bottom bar is S31655 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19
39
Fatigue Strength, MPa 330
300
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
78
Shear Strength, MPa 460
490
Tensile Strength: Ultimate (UTS), MPa 740
710
Tensile Strength: Yield (Proof), MPa 510
350

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 380
430
Maximum Temperature: Mechanical, °C 660
1010
Melting Completion (Liquidus), °C 1480
1430
Melting Onset (Solidus), °C 1440
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 4.2
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
17
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 2.8
3.3
Embodied Energy, MJ/kg 40
46
Embodied Water, L/kg 90
160

Common Calculations

PREN (Pitting Resistance) 15
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
230
Resilience: Unit (Modulus of Resilience), kJ/m3 680
310
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
25
Strength to Weight: Bending, points 23
23
Thermal Diffusivity, mm2/s 7.0
4.0
Thermal Shock Resistance, points 25
16

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Boron (B), % 0.00050 to 0.0050
0
Carbon (C), % 0.090 to 0.13
0 to 0.030
Chromium (Cr), % 8.5 to 9.5
19.5 to 21.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 86.2 to 88.8
63.2 to 71.9
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0.9 to 1.1
0.5 to 1.5
Nickel (Ni), % 0.1 to 0.4
8.0 to 9.5
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.050 to 0.090
0.14 to 0.25
Phosphorus (P), % 0 to 0.020
0 to 0.045
Silicon (Si), % 0.1 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015
Tungsten (W), % 0.9 to 1.1
0
Vanadium (V), % 0.18 to 0.25
0