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S35500 Stainless Steel vs. EN 1.7221 Steel

Both S35500 stainless steel and EN 1.7221 steel are iron alloys. They have 78% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is S35500 stainless steel and the bottom bar is EN 1.7221 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 14
11 to 17
Fatigue Strength, MPa 690 to 730
290 to 390
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 1330 to 1490
650 to 780
Tensile Strength: Yield (Proof), MPa 1200 to 1280
430 to 630

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 870
420
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
44
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 16
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.5
1.5
Embodied Energy, MJ/kg 47
20
Embodied Water, L/kg 130
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180 to 190
83 to 98
Resilience: Unit (Modulus of Resilience), kJ/m3 3610 to 4100
490 to 1050
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 47 to 53
23 to 27
Strength to Weight: Bending, points 34 to 37
21 to 24
Thermal Diffusivity, mm2/s 4.4
12
Thermal Shock Resistance, points 44 to 49
19 to 23

Alloy Composition

Carbon (C), % 0.1 to 0.15
0.22 to 0.29
Chromium (Cr), % 15 to 16
0.8 to 1.2
Iron (Fe), % 73.2 to 77.7
96.8 to 98.3
Manganese (Mn), % 0.5 to 1.3
0.5 to 0.8
Molybdenum (Mo), % 2.5 to 3.2
0.15 to 0.3
Nickel (Ni), % 4.0 to 5.0
0
Niobium (Nb), % 0.1 to 0.5
0
Nitrogen (N), % 0.070 to 0.13
0
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0 to 0.5
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030

Comparable Variants