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S21460 Stainless Steel vs. SAE-AISI 1118 Steel

Both S21460 stainless steel and SAE-AISI 1118 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 (6, in this case) are not shown.

For each property being compared, the top bar is S21460 stainless steel and the bottom bar is SAE-AISI 1118 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
140
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 46
13
Fatigue Strength, MPa 390
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 580
300
Tensile Strength: Ultimate (UTS), MPa 830
490
Tensile Strength: Yield (Proof), MPa 430
410

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 920
400
Melting Completion (Liquidus), °C 1380
1460
Melting Onset (Solidus), °C 1330
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 18
12

Otherwise Unclassified Properties

Base Metal Price, % relative 14
1.9
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 3.0
1.4
Embodied Energy, MJ/kg 43
19
Embodied Water, L/kg 160
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
61
Resilience: Unit (Modulus of Resilience), kJ/m3 460
450
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
17
Strength to Weight: Bending, points 26
18
Thermal Shock Resistance, points 17
15

Alloy Composition

Carbon (C), % 0 to 0.12
0.14 to 0.2
Chromium (Cr), % 17 to 19
0
Iron (Fe), % 57.3 to 63.7
98 to 98.5
Manganese (Mn), % 14 to 16
1.3 to 1.6
Nickel (Ni), % 5.0 to 6.0
0
Nitrogen (N), % 0.35 to 0.5
0
Phosphorus (P), % 0 to 0.060
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0.080 to 0.13