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S35140 Stainless Steel vs. EN 1.1221 Steel

Both S35140 stainless steel and EN 1.1221 steel are iron alloys. They have 50% 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 S35140 stainless steel and the bottom bar is EN 1.1221 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
210 to 250
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 34
10 to 21
Fatigue Strength, MPa 250
240 to 340
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
72
Shear Strength, MPa 460
450 to 520
Tensile Strength: Ultimate (UTS), MPa 690
730 to 870
Tensile Strength: Yield (Proof), MPa 310
390 to 550

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 14
48
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
2.1
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.5
1.5
Embodied Energy, MJ/kg 78
19
Embodied Water, L/kg 190
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
67 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 250
410 to 800
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
26 to 31
Strength to Weight: Bending, points 22
23 to 26
Thermal Diffusivity, mm2/s 3.7
13
Thermal Shock Resistance, points 16
23 to 28

Alloy Composition

Carbon (C), % 0 to 0.1
0.57 to 0.65
Chromium (Cr), % 20 to 22
0 to 0.4
Iron (Fe), % 44.1 to 52.7
97.1 to 98.8
Manganese (Mn), % 1.0 to 3.0
0.6 to 0.9
Molybdenum (Mo), % 1.0 to 2.0
0 to 0.1
Nickel (Ni), % 25 to 27
0 to 0.4
Niobium (Nb), % 0.25 to 0.75
0
Nitrogen (N), % 0.080 to 0.2
0
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 0.75
0 to 0.4
Sulfur (S), % 0 to 0.030
0 to 0.035