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EN 1.4415 Stainless Steel vs. S31803 Stainless Steel

Both EN 1.4415 stainless steel and S31803 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4415 stainless steel and the bottom bar is S31803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17 to 20
29
Fatigue Strength, MPa 470 to 510
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 77
80
Shear Strength, MPa 520 to 570
460
Tensile Strength: Ultimate (UTS), MPa 830 to 930
710
Tensile Strength: Yield (Proof), MPa 730 to 840
500

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
430
Maximum Temperature: Mechanical, °C 790
1060
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 19
16
Thermal Expansion, µm/m-K 9.9
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
17
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.6
3.6
Embodied Energy, MJ/kg 51
49
Embodied Water, L/kg 120
160

Common Calculations

PREN (Pitting Resistance) 19
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
180
Resilience: Unit (Modulus of Resilience), kJ/m3 1350 to 1790
630
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 29 to 33
25
Strength to Weight: Bending, points 25 to 27
23
Thermal Diffusivity, mm2/s 5.1
4.3
Thermal Shock Resistance, points 30 to 34
20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 11.5 to 13.5
21 to 23
Iron (Fe), % 75.9 to 82.4
63.7 to 71.9
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 1.5 to 2.5
2.5 to 3.5
Nickel (Ni), % 4.5 to 6.5
4.5 to 6.5
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0 to 0.010
0
Vanadium (V), % 0.1 to 0.5
0