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S38815 Stainless Steel vs. EN 1.4578 Stainless Steel

Both S38815 stainless steel and EN 1.4578 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 S38815 stainless steel and the bottom bar is EN 1.4578 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 34
51
Fatigue Strength, MPa 230
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Shear Strength, MPa 410
400
Tensile Strength: Ultimate (UTS), MPa 610
550
Tensile Strength: Yield (Proof), MPa 290
200

Thermal Properties

Latent Heat of Fusion, J/g 370
290
Maximum Temperature: Corrosion, °C 400
410
Maximum Temperature: Mechanical, °C 860
930
Melting Completion (Liquidus), °C 1360
1430
Melting Onset (Solidus), °C 1310
1390
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 15
16

Otherwise Unclassified Properties

Base Metal Price, % relative 19
19
Density, g/cm3 7.5
7.9
Embodied Carbon, kg CO2/kg material 3.8
3.7
Embodied Energy, MJ/kg 54
51
Embodied Water, L/kg 140
160

Common Calculations

PREN (Pitting Resistance) 18
25
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
220
Resilience: Unit (Modulus of Resilience), kJ/m3 220
100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
19
Strength to Weight: Bending, points 21
19
Thermal Shock Resistance, points 15
12

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0 to 0.040
Chromium (Cr), % 13 to 15
16.5 to 17.5
Copper (Cu), % 0.75 to 1.5
3.0 to 3.5
Iron (Fe), % 56.1 to 67
62.3 to 68.5
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0.75 to 1.5
2.0 to 2.5
Nickel (Ni), % 13 to 17
10 to 11
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 5.5 to 6.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015