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EN 1.1221 Steel vs. S44535 Stainless Steel

Both EN 1.1221 steel and S44535 stainless steel are iron alloys. They have 77% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.1221 steel and the bottom bar is S44535 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 250
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 10 to 21
28
Fatigue Strength, MPa 240 to 340
210
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
78
Shear Strength, MPa 450 to 520
290
Tensile Strength: Ultimate (UTS), MPa 730 to 870
450
Tensile Strength: Yield (Proof), MPa 390 to 550
290

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
1000
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 48
21
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
11
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.5
2.4
Embodied Energy, MJ/kg 19
34
Embodied Water, L/kg 47
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 67 to 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 410 to 800
200
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 31
16
Strength to Weight: Bending, points 23 to 26
17
Thermal Diffusivity, mm2/s 13
5.6
Thermal Shock Resistance, points 23 to 28
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Carbon (C), % 0.57 to 0.65
0 to 0.030
Chromium (Cr), % 0 to 0.4
20 to 24
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 97.1 to 98.8
73.2 to 79.6
Lanthanum (La), % 0
0.040 to 0.2
Manganese (Mn), % 0.6 to 0.9
0.3 to 0.8
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
0
Phosphorus (P), % 0 to 0.035
0 to 0.050
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0 to 0.035
0 to 0.020
Titanium (Ti), % 0
0.030 to 0.2