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S38815 Stainless Steel vs. AISI 420F Stainless Steel

Both S38815 stainless steel and AISI 420F stainless steel are iron alloys. Both are furnished in the annealed condition. They have 76% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S38815 stainless steel and the bottom bar is AISI 420F stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 34
18
Fatigue Strength, MPa 230
270
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
76
Shear Strength, MPa 410
460
Tensile Strength: Ultimate (UTS), MPa 610
740
Tensile Strength: Yield (Proof), MPa 290
430

Thermal Properties

Latent Heat of Fusion, J/g 370
270
Maximum Temperature: Corrosion, °C 400
390
Maximum Temperature: Mechanical, °C 860
760
Melting Completion (Liquidus), °C 1360
1440
Melting Onset (Solidus), °C 1310
1390
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 15
10

Otherwise Unclassified Properties

Base Metal Price, % relative 19
7.0
Density, g/cm3 7.5
7.7
Embodied Carbon, kg CO2/kg material 3.8
2.0
Embodied Energy, MJ/kg 54
28
Embodied Water, L/kg 140
100

Common Calculations

PREN (Pitting Resistance) 18
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
120
Resilience: Unit (Modulus of Resilience), kJ/m3 220
480
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
27
Strength to Weight: Bending, points 21
23
Thermal Shock Resistance, points 15
27

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0.3 to 0.4
Chromium (Cr), % 13 to 15
12 to 14
Copper (Cu), % 0.75 to 1.5
0
Iron (Fe), % 56.1 to 67
82.4 to 87.6
Manganese (Mn), % 0 to 2.0
0 to 1.3
Molybdenum (Mo), % 0.75 to 1.5
0 to 0.5
Nickel (Ni), % 13 to 17
0
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 5.5 to 6.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0.15 to 0.35