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EN 1.4912 Stainless Steel vs. EN 1.5511 Steel

Both EN 1.4912 stainless steel and EN 1.5511 steel are iron alloys. They have 70% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.4912 stainless steel and the bottom bar is EN 1.5511 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
150 to 170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 610
490 to 580

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 940
400
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
51
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 20
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.8
1.4
Embodied Energy, MJ/kg 55
19
Embodied Water, L/kg 140
46

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
17 to 20
Strength to Weight: Bending, points 20
18 to 20
Thermal Diffusivity, mm2/s 4.2
14
Thermal Shock Resistance, points 14
15 to 17

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.060
Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0.040 to 0.1
0.32 to 0.39
Chromium (Cr), % 17 to 19
0
Iron (Fe), % 64.6 to 73.6
98.3 to 99.159
Manganese (Mn), % 0 to 2.0
0.5 to 0.8
Nickel (Ni), % 9.0 to 12
0
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.4
Sulfur (S), % 0 to 0.015
0 to 0.015