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S38815 Stainless Steel vs. EN 1.4418 Stainless Steel

Both S38815 stainless steel and EN 1.4418 stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S38815 stainless steel and the bottom bar is EN 1.4418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 34
16 to 20
Fatigue Strength, MPa 230
350 to 480
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
77
Shear Strength, MPa 410
530 to 620
Tensile Strength: Ultimate (UTS), MPa 610
860 to 1000
Tensile Strength: Yield (Proof), MPa 290
540 to 790

Thermal Properties

Latent Heat of Fusion, J/g 370
280
Maximum Temperature: Corrosion, °C 400
410
Maximum Temperature: Mechanical, °C 860
870
Melting Completion (Liquidus), °C 1360
1450
Melting Onset (Solidus), °C 1310
1400
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 15
10

Otherwise Unclassified Properties

Base Metal Price, % relative 19
13
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.8
2.8
Embodied Energy, MJ/kg 54
39
Embodied Water, L/kg 140
130

Common Calculations

PREN (Pitting Resistance) 18
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
130 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 220
730 to 1590
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
31 to 36
Strength to Weight: Bending, points 21
26 to 28
Thermal Shock Resistance, points 15
31 to 36

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 13 to 15
15 to 17
Copper (Cu), % 0.75 to 1.5
0
Iron (Fe), % 56.1 to 67
73.2 to 80.2
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 0.75 to 1.5
0.8 to 1.5
Nickel (Ni), % 13 to 17
4.0 to 6.0
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 5.5 to 6.5
0 to 0.7
Sulfur (S), % 0 to 0.020
0 to 0.015