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EN 1.1221 Steel vs. S46500 Stainless Steel

Both EN 1.1221 steel and S46500 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.1221 steel and the bottom bar is S46500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 10 to 21
2.3 to 14
Fatigue Strength, MPa 240 to 340
550 to 890
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
75
Shear Strength, MPa 450 to 520
730 to 1120
Tensile Strength: Ultimate (UTS), MPa 730 to 870
1260 to 1930
Tensile Strength: Yield (Proof), MPa 390 to 550
1120 to 1810

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Maximum Temperature: Mechanical, °C 400
780
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
15
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
3.6
Embodied Energy, MJ/kg 19
51
Embodied Water, L/kg 47
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 67 to 130
43 to 210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26 to 31
44 to 68
Strength to Weight: Bending, points 23 to 26
33 to 44
Thermal Shock Resistance, points 23 to 28
44 to 67

Alloy Composition

Carbon (C), % 0.57 to 0.65
0 to 0.020
Chromium (Cr), % 0 to 0.4
11 to 12.5
Iron (Fe), % 97.1 to 98.8
72.6 to 76.1
Manganese (Mn), % 0.6 to 0.9
0 to 0.25
Molybdenum (Mo), % 0 to 0.1
0.75 to 1.3
Nickel (Ni), % 0 to 0.4
10.7 to 11.3
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.035
0 to 0.015
Silicon (Si), % 0 to 0.4
0 to 0.25
Sulfur (S), % 0 to 0.035
0 to 0.010
Titanium (Ti), % 0
1.5 to 1.8

Comparable Variants