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EN 1.4618 Stainless Steel vs. S15500 Stainless Steel

Both EN 1.4618 stainless steel and S15500 stainless steel are iron alloys. They have 90% of their average alloy composition in common. There are 34 material properties with values for both materials. Properties with values for just one material (2, 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 S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 210
290 to 430
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 51
6.8 to 16
Fatigue Strength, MPa 240 to 250
350 to 650
Impact Strength: V-Notched Charpy, J 90 to 91
7.8 to 53
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Shear Strength, MPa 480 to 500
540 to 870
Tensile Strength: Ultimate (UTS), MPa 680 to 700
890 to 1490
Tensile Strength: Yield (Proof), MPa 250 to 260
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 280
280
Maximum Temperature: Corrosion, °C 410
440
Maximum Temperature: Mechanical, °C 900
820
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1360
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
13
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.7
Embodied Energy, MJ/kg 39
39
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 19
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 270 to 280
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 170
890 to 4460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 24 to 25
32 to 53
Strength to Weight: Bending, points 22 to 23
26 to 37
Thermal Diffusivity, mm2/s 4.0
4.6
Thermal Shock Resistance, points 15 to 16
30 to 50

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.070
Chromium (Cr), % 16.5 to 18.5
14 to 15.5
Copper (Cu), % 1.0 to 2.5
2.5 to 4.5
Iron (Fe), % 62.7 to 72.5
71.9 to 79.9
Manganese (Mn), % 5.5 to 9.5
0 to 1.0
Nickel (Ni), % 4.5 to 5.5
3.5 to 5.5
Niobium (Nb), % 0
0.15 to 0.45
Nitrogen (N), % 0 to 0.15
0
Phosphorus (P), % 0 to 0.070
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030