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EN 1.4315 Stainless Steel vs. S15500 Stainless Steel

Both EN 1.4315 stainless steel and S15500 stainless steel are iron alloys. They have a moderately high 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 1.4315 stainless steel and the bottom bar is S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
290 to 430
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 45
6.8 to 16
Fatigue Strength, MPa 290
350 to 650
Impact Strength: V-Notched Charpy, J 90
7.8 to 53
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Shear Strength, MPa 440
540 to 870
Tensile Strength: Ultimate (UTS), MPa 630
890 to 1490
Tensile Strength: Yield (Proof), MPa 310
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 420
440
Maximum Temperature: Mechanical, °C 960
820
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1380
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 15
13
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 43
39
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 22
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 240
890 to 4460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
32 to 53
Strength to Weight: Bending, points 21
26 to 37
Thermal Diffusivity, mm2/s 4.0
4.6
Thermal Shock Resistance, points 14
30 to 50

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.070
Chromium (Cr), % 18 to 20
14 to 15.5
Copper (Cu), % 0
2.5 to 4.5
Iron (Fe), % 65.7 to 73.9
71.9 to 79.9
Manganese (Mn), % 0 to 2.0
0 to 1.0
Nickel (Ni), % 8.0 to 11
3.5 to 5.5
Niobium (Nb), % 0
0.15 to 0.45
Nitrogen (N), % 0.12 to 0.22
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030