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S38815 Stainless Steel vs. EN 1.1221 Steel

Both S38815 stainless steel and EN 1.1221 steel are iron alloys. They have 63% of their average alloy composition in common. There are 27 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 S38815 stainless steel and the bottom bar is EN 1.1221 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
210 to 250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 34
10 to 21
Fatigue Strength, MPa 230
240 to 340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 74
72
Shear Strength, MPa 410
450 to 520
Tensile Strength: Ultimate (UTS), MPa 610
730 to 870
Tensile Strength: Yield (Proof), MPa 290
390 to 550

Thermal Properties

Latent Heat of Fusion, J/g 370
250
Maximum Temperature: Mechanical, °C 860
400
Melting Completion (Liquidus), °C 1360
1460
Melting Onset (Solidus), °C 1310
1410
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 15
12

Otherwise Unclassified Properties

Base Metal Price, % relative 19
2.1
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.8
1.5
Embodied Energy, MJ/kg 54
19
Embodied Water, L/kg 140
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
67 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 220
410 to 800
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
26 to 31
Strength to Weight: Bending, points 21
23 to 26
Thermal Shock Resistance, points 15
23 to 28

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0.57 to 0.65
Chromium (Cr), % 13 to 15
0 to 0.4
Copper (Cu), % 0.75 to 1.5
0
Iron (Fe), % 56.1 to 67
97.1 to 98.8
Manganese (Mn), % 0 to 2.0
0.6 to 0.9
Molybdenum (Mo), % 0.75 to 1.5
0 to 0.1
Nickel (Ni), % 13 to 17
0 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 5.5 to 6.5
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.035