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EN 1.4618 Stainless Steel vs. S38815 Stainless Steel

Both EN 1.4618 stainless steel and S38815 stainless steel are iron alloys. They have 83% 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 1.4618 stainless steel and the bottom bar is S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 51
34
Fatigue Strength, MPa 240 to 250
230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Shear Strength, MPa 480 to 500
410
Tensile Strength: Ultimate (UTS), MPa 680 to 700
610
Tensile Strength: Yield (Proof), MPa 250 to 260
290

Thermal Properties

Latent Heat of Fusion, J/g 280
370
Maximum Temperature: Corrosion, °C 410
400
Maximum Temperature: Mechanical, °C 900
860
Melting Completion (Liquidus), °C 1400
1360
Melting Onset (Solidus), °C 1360
1310
Specific Heat Capacity, J/kg-K 480
500
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 13
19
Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 2.7
3.8
Embodied Energy, MJ/kg 39
54
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 19
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 280
170
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 170
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 25
22
Strength to Weight: Bending, points 22 to 23
21
Thermal Shock Resistance, points 15 to 16
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 16.5 to 18.5
13 to 15
Copper (Cu), % 1.0 to 2.5
0.75 to 1.5
Iron (Fe), % 62.7 to 72.5
56.1 to 67
Manganese (Mn), % 5.5 to 9.5
0 to 2.0
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 4.5 to 5.5
13 to 17
Nitrogen (N), % 0 to 0.15
0
Phosphorus (P), % 0 to 0.070
0 to 0.040
Silicon (Si), % 0 to 1.0
5.5 to 6.5
Sulfur (S), % 0 to 0.010
0 to 0.020