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S21800 Stainless Steel vs. SAE-AISI 1015 Steel

Both S21800 stainless steel and SAE-AISI 1015 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 S21800 stainless steel and the bottom bar is SAE-AISI 1015 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
120
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 40
20 to 32
Fatigue Strength, MPa 330
170 to 250
Poisson's Ratio 0.28
0.29
Reduction in Area, % 62
46 to 56
Shear Modulus, GPa 75
73
Shear Strength, MPa 510
260 to 270
Tensile Strength: Ultimate (UTS), MPa 740
390 to 440
Tensile Strength: Yield (Proof), MPa 390
210 to 370

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Maximum Temperature: Mechanical, °C 900
400
Melting Completion (Liquidus), °C 1360
1470
Melting Onset (Solidus), °C 1310
1420
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 15
1.8
Density, g/cm3 7.5
7.9
Embodied Carbon, kg CO2/kg material 3.1
1.4
Embodied Energy, MJ/kg 45
18
Embodied Water, L/kg 150
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
83 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 390
120 to 360
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 27
14 to 15
Strength to Weight: Bending, points 24
15 to 16
Thermal Shock Resistance, points 17
12 to 14

Alloy Composition

Carbon (C), % 0 to 0.1
0.13 to 0.18
Chromium (Cr), % 16 to 18
0
Iron (Fe), % 59.1 to 65.4
99.13 to 99.57
Manganese (Mn), % 7.0 to 9.0
0.3 to 0.6
Nickel (Ni), % 8.0 to 9.0
0
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 3.5 to 4.5
0
Sulfur (S), % 0 to 0.030
0 to 0.050