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EN 1.4958 Stainless Steel vs. S15500 Stainless Steel

Both EN 1.4958 stainless steel and S15500 stainless steel are iron alloys. They have 66% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4958 stainless steel and the bottom bar is S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
6.8 to 16
Fatigue Strength, MPa 170
350 to 650
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
75
Shear Strength, MPa 430
540 to 870
Tensile Strength: Ultimate (UTS), MPa 630
890 to 1490
Tensile Strength: Yield (Proof), MPa 190
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 500
440
Maximum Temperature: Mechanical, °C 1090
820
Melting Completion (Liquidus), °C 1400
1430
Melting Onset (Solidus), °C 1350
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 12
17
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 30
13
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.3
2.7
Embodied Energy, MJ/kg 75
39
Embodied Water, L/kg 200
130

Common Calculations

PREN (Pitting Resistance) 21
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 95
890 to 4460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
32 to 53
Strength to Weight: Bending, points 20
26 to 37
Thermal Diffusivity, mm2/s 3.2
4.6
Thermal Shock Resistance, points 15
30 to 50

Alloy Composition

Aluminum (Al), % 0.2 to 0.5
0
Carbon (C), % 0.030 to 0.080
0 to 0.070
Chromium (Cr), % 19 to 22
14 to 15.5
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
2.5 to 4.5
Iron (Fe), % 41.1 to 50.6
71.9 to 79.9
Manganese (Mn), % 0 to 1.5
0 to 1.0
Nickel (Ni), % 30 to 32.5
3.5 to 5.5
Niobium (Nb), % 0 to 0.1
0.15 to 0.45
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.015
0 to 0.040
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030
Titanium (Ti), % 0.2 to 0.5
0