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EN 1.4590 Stainless Steel vs. EN 1.1172 Steel

Both EN 1.4590 stainless steel and EN 1.1172 steel are iron alloys. They have 82% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4590 stainless steel and the bottom bar is EN 1.1172 steel.

Metric UnitsUS Customary Units

Mechanical Properties

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 480
480 to 1720

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 860
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 26
51
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.5
1.4
Embodied Energy, MJ/kg 37
18
Embodied Water, L/kg 120
46

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
17 to 61
Strength to Weight: Bending, points 18
17 to 41
Thermal Diffusivity, mm2/s 7.0
14
Thermal Shock Resistance, points 17
15 to 55

Alloy Composition

Carbon (C), % 0 to 0.030
0.32 to 0.39
Chromium (Cr), % 16 to 17.5
0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 79.7 to 83.7
98.2 to 99.18
Manganese (Mn), % 0 to 1.0
0.5 to 0.8
Niobium (Nb), % 0.35 to 0.55
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 0.015
0 to 0.025
Zirconium (Zr), % 0 to 0.15
0