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S44535 Stainless Steel vs. EN 1.1121 Steel

Both S44535 stainless steel and EN 1.1121 steel are iron alloys. Both are furnished in the annealed condition. 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 S44535 stainless steel and the bottom bar is EN 1.1121 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
120
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
28
Fatigue Strength, MPa 210
160
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 290
260
Tensile Strength: Ultimate (UTS), MPa 450
400
Tensile Strength: Yield (Proof), MPa 290
210

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 1000
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 21
53
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.6
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.8
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.4
1.4
Embodied Energy, MJ/kg 34
18
Embodied Water, L/kg 140
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
93
Resilience: Unit (Modulus of Resilience), kJ/m3 200
110
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 16
14
Strength to Weight: Bending, points 17
15
Thermal Diffusivity, mm2/s 5.6
14
Thermal Shock Resistance, points 15
13

Alloy Composition

Aluminum (Al), % 0 to 0.5
0
Carbon (C), % 0 to 0.030
0.070 to 0.13
Chromium (Cr), % 20 to 24
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 73.2 to 79.6
98.8 to 99.63
Lanthanum (La), % 0.040 to 0.2
0
Manganese (Mn), % 0.3 to 0.8
0.3 to 0.6
Phosphorus (P), % 0 to 0.050
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.035
Titanium (Ti), % 0.030 to 0.2
0