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S45000 Stainless Steel vs. EN 1.7227 Steel

Both S45000 stainless steel and EN 1.7227 steel are iron alloys. They have 78% 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 S45000 stainless steel and the bottom bar is EN 1.7227 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.28
0.29
Rockwell C Hardness 28 to 44
50 to 57
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 980 to 1410
540 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 840
420
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
46
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.5
Embodied Energy, MJ/kg 39
20
Embodied Water, L/kg 130
51

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 35 to 50
19 to 65
Strength to Weight: Bending, points 28 to 36
19 to 43
Thermal Diffusivity, mm2/s 4.5
12
Thermal Shock Resistance, points 33 to 47
16 to 54

Alloy Composition

Carbon (C), % 0 to 0.050
0.38 to 0.45
Chromium (Cr), % 14 to 16
0.9 to 1.2
Copper (Cu), % 1.3 to 1.8
0 to 0.25
Iron (Fe), % 72.1 to 79.3
96.5 to 98
Manganese (Mn), % 0 to 1.0
0.6 to 0.9
Molybdenum (Mo), % 0.5 to 1.0
0.15 to 0.3
Nickel (Ni), % 5.0 to 7.0
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
0.020 to 0.040