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EN 1.7228 Steel vs. EN 1.4487 Stainless Steel

Both EN 1.7228 steel and EN 1.4487 stainless steel are iron alloys. They have 71% of their average alloy composition in common. There are 30 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 EN 1.7228 steel and the bottom bar is EN 1.4487 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12
34
Fatigue Strength, MPa 390
210
Impact Strength: V-Notched Charpy, J 22
90
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 900
560
Tensile Strength: Yield (Proof), MPa 630
260

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 420
960
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
16
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
3.1
Embodied Energy, MJ/kg 20
44
Embodied Water, L/kg 51
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
160
Resilience: Unit (Modulus of Resilience), kJ/m3 1050
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 32
20
Strength to Weight: Bending, points 26
19
Thermal Diffusivity, mm2/s 12
4.2
Thermal Shock Resistance, points 26
16

Alloy Composition

Carbon (C), % 0.46 to 0.54
0 to 0.030
Chromium (Cr), % 0.9 to 1.2
18 to 20
Iron (Fe), % 96.7 to 98
64.7 to 72.9
Manganese (Mn), % 0.5 to 0.8
0 to 1.5
Molybdenum (Mo), % 0.15 to 0.3
0
Nickel (Ni), % 0
9.0 to 12
Nitrogen (N), % 0
0.12 to 0.2
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.5
Sulfur (S), % 0 to 0.035
0 to 0.030