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S38815 Stainless Steel vs. AISI 316 Stainless Steel

Both S38815 stainless steel and AISI 316 stainless steel are iron alloys. They have a moderately high 90% 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 AISI 316 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
160 to 360
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 34
8.0 to 55
Fatigue Strength, MPa 230
210 to 430
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 74
78
Shear Strength, MPa 410
350 to 690
Tensile Strength: Ultimate (UTS), MPa 610
520 to 1180
Tensile Strength: Yield (Proof), MPa 290
230 to 850

Thermal Properties

Latent Heat of Fusion, J/g 370
290
Maximum Temperature: Corrosion, °C 400
410
Maximum Temperature: Mechanical, °C 860
590
Melting Completion (Liquidus), °C 1360
1400
Melting Onset (Solidus), °C 1310
1380
Specific Heat Capacity, J/kg-K 500
470
Thermal Expansion, µm/m-K 15
16

Otherwise Unclassified Properties

Base Metal Price, % relative 19
19
Density, g/cm3 7.5
7.9
Embodied Carbon, kg CO2/kg material 3.8
3.9
Embodied Energy, MJ/kg 54
53
Embodied Water, L/kg 140
150

Common Calculations

PREN (Pitting Resistance) 18
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
85 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 220
130 to 1820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 22
18 to 41
Strength to Weight: Bending, points 21
18 to 31
Thermal Shock Resistance, points 15
11 to 26

Alloy Composition

Aluminum (Al), % 0 to 0.3
0
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 13 to 15
16 to 18
Copper (Cu), % 0.75 to 1.5
0
Iron (Fe), % 56.1 to 67
62 to 72
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 0.75 to 1.5
2.0 to 3.0
Nickel (Ni), % 13 to 17
10 to 14
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 5.5 to 6.5
0 to 0.75
Sulfur (S), % 0 to 0.020
0 to 0.030