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S38815 Stainless Steel vs. S15500 Stainless Steel

Both S38815 stainless steel and S15500 stainless steel are iron alloys. They have 82% of their average alloy composition in common. There are 29 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 S38815 stainless steel and the bottom bar is S15500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
290 to 430
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 34
6.8 to 16
Fatigue Strength, MPa 230
350 to 650
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
75
Shear Strength, MPa 410
540 to 870
Tensile Strength: Ultimate (UTS), MPa 610
890 to 1490
Tensile Strength: Yield (Proof), MPa 290
590 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 370
280
Maximum Temperature: Corrosion, °C 400
440
Maximum Temperature: Mechanical, °C 860
820
Melting Completion (Liquidus), °C 1360
1430
Melting Onset (Solidus), °C 1310
1380
Specific Heat Capacity, J/kg-K 500
480
Thermal Expansion, µm/m-K 15
11

Otherwise Unclassified Properties

Base Metal Price, % relative 19
13
Density, g/cm3 7.5
7.8
Embodied Carbon, kg CO2/kg material 3.8
2.7
Embodied Energy, MJ/kg 54
39
Embodied Water, L/kg 140
130

Common Calculations

PREN (Pitting Resistance) 18
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
98 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 220
890 to 4460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
32 to 53
Strength to Weight: Bending, points 21
26 to 37
Thermal Shock Resistance, points 15
30 to 50

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0 to 0.070
Chromium (Cr), % 13 to 15
14 to 15.5
Copper (Cu), % 0.75 to 1.5
2.5 to 4.5
Iron (Fe), % 56.1 to 67
71.9 to 79.9
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0.75 to 1.5
0
Nickel (Ni), % 13 to 17
3.5 to 5.5
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 5.5 to 6.5
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030