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EN 1.1122 Steel vs. S38815 Stainless Steel

Both EN 1.1122 steel and S38815 stainless steel are iron alloys. They have 62% of their average alloy composition in common. There are 27 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 S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 130
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 21
34
Fatigue Strength, MPa 170 to 260
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 240 to 290
410
Tensile Strength: Ultimate (UTS), MPa 340 to 460
610
Tensile Strength: Yield (Proof), MPa 240 to 370
290

Thermal Properties

Latent Heat of Fusion, J/g 250
370
Maximum Temperature: Mechanical, °C 400
860
Melting Completion (Liquidus), °C 1460
1360
Melting Onset (Solidus), °C 1420
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
19
Density, g/cm3 7.9
7.5
Embodied Carbon, kg CO2/kg material 1.4
3.8
Embodied Energy, MJ/kg 18
54
Embodied Water, L/kg 46
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 89
170
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 360
220
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 12 to 16
22
Strength to Weight: Bending, points 14 to 17
21
Thermal Shock Resistance, points 11 to 15
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0.080 to 0.12
0 to 0.030
Chromium (Cr), % 0
13 to 15
Copper (Cu), % 0 to 0.25
0.75 to 1.5
Iron (Fe), % 98.7 to 99.62
56.1 to 67
Manganese (Mn), % 0.3 to 0.6
0 to 2.0
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 0
13 to 17
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.3
5.5 to 6.5
Sulfur (S), % 0 to 0.025
0 to 0.020