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EN 1.1122 Steel vs. S21600 Stainless Steel

Both EN 1.1122 steel and S21600 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.1122 steel and the bottom bar is S21600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 130
200
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 21
46
Fatigue Strength, MPa 170 to 260
360
Poisson's Ratio 0.29
0.28
Reduction in Area, % 63 to 73
56
Shear Modulus, GPa 73
79
Shear Strength, MPa 240 to 290
500
Tensile Strength: Ultimate (UTS), MPa 340 to 460
710
Tensile Strength: Yield (Proof), MPa 240 to 370
390

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
990
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1380
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 12
17

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
17
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.4
3.6
Embodied Energy, MJ/kg 18
50
Embodied Water, L/kg 46
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 89
270
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 360
370
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 12 to 16
25
Strength to Weight: Bending, points 14 to 17
23
Thermal Shock Resistance, points 11 to 15
15

Alloy Composition

Carbon (C), % 0.080 to 0.12
0 to 0.080
Chromium (Cr), % 0
17.5 to 22
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 98.7 to 99.62
57.6 to 67.8
Manganese (Mn), % 0.3 to 0.6
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
5.0 to 7.0
Nitrogen (N), % 0
0.25 to 0.5
Phosphorus (P), % 0 to 0.025
0 to 0.045
Silicon (Si), % 0 to 0.3
0 to 0.75
Sulfur (S), % 0 to 0.025
0 to 0.030