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EN 1.4401 Stainless Steel vs. S38815 Stainless Steel

Both EN 1.4401 stainless steel and S38815 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4401 stainless steel and the bottom bar is S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 270
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14 to 40
34
Fatigue Strength, MPa 200 to 320
230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
74
Shear Strength, MPa 410 to 550
410
Tensile Strength: Ultimate (UTS), MPa 600 to 900
610
Tensile Strength: Yield (Proof), MPa 230 to 570
290

Thermal Properties

Latent Heat of Fusion, J/g 290
370
Maximum Temperature: Corrosion, °C 410
400
Maximum Temperature: Mechanical, °C 950
860
Melting Completion (Liquidus), °C 1440
1360
Melting Onset (Solidus), °C 1400
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 19
19
Density, g/cm3 7.9
7.5
Embodied Carbon, kg CO2/kg material 3.8
3.8
Embodied Energy, MJ/kg 52
54
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 26
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
170
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 800
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 32
22
Strength to Weight: Bending, points 20 to 26
21
Thermal Shock Resistance, points 13 to 20
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 16.5 to 18.5
13 to 15
Copper (Cu), % 0
0.75 to 1.5
Iron (Fe), % 62.8 to 71.5
56.1 to 67
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.0 to 2.5
0.75 to 1.5
Nickel (Ni), % 10 to 13
13 to 17
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
5.5 to 6.5
Sulfur (S), % 0 to 0.015
0 to 0.020