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S15500 Stainless Steel vs. EN 1.1172 Steel

Both S15500 stainless steel and EN 1.1172 steel are iron alloys. They have 77% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is S15500 stainless steel and the bottom bar is EN 1.1172 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 290 to 430
140 to 170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
72
Tensile Strength: Ultimate (UTS), MPa 890 to 1490
480 to 1720

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
51
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 13
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.4
Embodied Energy, MJ/kg 39
18
Embodied Water, L/kg 130
46

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32 to 53
17 to 61
Strength to Weight: Bending, points 26 to 37
17 to 41
Thermal Diffusivity, mm2/s 4.6
14
Thermal Shock Resistance, points 30 to 50
15 to 55

Alloy Composition

Carbon (C), % 0 to 0.070
0.32 to 0.39
Chromium (Cr), % 14 to 15.5
0
Copper (Cu), % 2.5 to 4.5
0 to 0.25
Iron (Fe), % 71.9 to 79.9
98.2 to 99.18
Manganese (Mn), % 0 to 1.0
0.5 to 0.8
Nickel (Ni), % 3.5 to 5.5
0
Niobium (Nb), % 0.15 to 0.45
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.3
Sulfur (S), % 0 to 0.030
0 to 0.025