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S15500 Stainless Steel vs. EN 1.1191 Steel

Both S15500 stainless steel and EN 1.1191 steel are iron alloys. They have 77% 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 S15500 stainless steel and the bottom bar is EN 1.1191 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 290 to 430
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 6.8 to 16
16 to 17
Fatigue Strength, MPa 350 to 650
210 to 290
Impact Strength: V-Notched Charpy, J 7.8 to 53
16 to 29
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
72
Shear Strength, MPa 540 to 870
380 to 430
Tensile Strength: Ultimate (UTS), MPa 890 to 1490
630 to 700
Tensile Strength: Yield (Proof), MPa 590 to 1310
310 to 440

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 820
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
48
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.4
Embodied Energy, MJ/kg 39
19
Embodied Water, L/kg 130
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98 to 120
83 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 890 to 4460
260 to 510
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 53
22 to 25
Strength to Weight: Bending, points 26 to 37
21 to 22
Thermal Diffusivity, mm2/s 4.6
13
Thermal Shock Resistance, points 30 to 50
20 to 22

Alloy Composition

Carbon (C), % 0 to 0.070
0.42 to 0.5
Chromium (Cr), % 14 to 15.5
0 to 0.4
Copper (Cu), % 2.5 to 4.5
0
Iron (Fe), % 71.9 to 79.9
97.3 to 99.08
Manganese (Mn), % 0 to 1.0
0.5 to 0.8
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 3.5 to 5.5
0 to 0.4
Niobium (Nb), % 0.15 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035