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AISI 316Ti Stainless Steel vs. S38815 Stainless Steel

Both AISI 316Ti stainless steel and S38815 stainless steel are iron alloys. Both are furnished in the annealed condition. 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 AISI 316Ti stainless steel and the bottom bar is S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 41
34
Fatigue Strength, MPa 200
230
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 82
74
Shear Strength, MPa 400
410
Tensile Strength: Ultimate (UTS), MPa 580
610
Tensile Strength: Yield (Proof), MPa 230
290

Thermal Properties

Latent Heat of Fusion, J/g 290
370
Maximum Temperature: Corrosion, °C 470
400
Maximum Temperature: Mechanical, °C 940
860
Melting Completion (Liquidus), °C 1450
1360
Melting Onset (Solidus), °C 1380
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 17
15

Otherwise Unclassified Properties

Base Metal Price, % relative 19
19
Density, g/cm3 7.9
7.5
Embodied Carbon, kg CO2/kg material 4.0
3.8
Embodied Energy, MJ/kg 55
54
Embodied Water, L/kg 150
140

Common Calculations

PREN (Pitting Resistance) 26
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
170
Resilience: Unit (Modulus of Resilience), kJ/m3 140
220
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
22
Strength to Weight: Bending, points 20
21
Thermal Shock Resistance, points 13
15

Alloy Composition

Aluminum (Al), % 0
0 to 0.3
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 16 to 18
13 to 15
Copper (Cu), % 0
0.75 to 1.5
Iron (Fe), % 61.3 to 72
56.1 to 67
Manganese (Mn), % 0 to 2.0
0 to 2.0
Molybdenum (Mo), % 2.0 to 3.0
0.75 to 1.5
Nickel (Ni), % 10 to 14
13 to 17
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
5.5 to 6.5
Sulfur (S), % 0 to 0.030
0 to 0.020
Titanium (Ti), % 0 to 0.7
0