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S17400 Stainless Steel vs. AISI 316Ti Stainless Steel

Both S17400 stainless steel and AISI 316Ti stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 34 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 S17400 stainless steel and the bottom bar is AISI 316Ti stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 280 to 440
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11 to 21
41
Fatigue Strength, MPa 380 to 670
200
Poisson's Ratio 0.28
0.28
Reduction in Area, % 40 to 62
45
Shear Modulus, GPa 75
82
Shear Strength, MPa 570 to 830
400
Tensile Strength: Ultimate (UTS), MPa 910 to 1390
580
Tensile Strength: Yield (Proof), MPa 580 to 1250
230

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 450
470
Maximum Temperature: Mechanical, °C 850
940
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1400
1380
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 14
19
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 2.7
4.0
Embodied Energy, MJ/kg 39
55
Embodied Water, L/kg 130
150

Common Calculations

PREN (Pitting Resistance) 16
26
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 160
190
Resilience: Unit (Modulus of Resilience), kJ/m3 880 to 4060
140
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 32 to 49
20
Strength to Weight: Bending, points 27 to 35
20
Thermal Diffusivity, mm2/s 4.5
4.0
Thermal Shock Resistance, points 30 to 46
13

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.080
Chromium (Cr), % 15 to 17
16 to 18
Copper (Cu), % 3.0 to 5.0
0
Iron (Fe), % 70.4 to 78.9
61.3 to 72
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 3.0 to 5.0
10 to 14
Niobium (Nb), % 0.15 to 0.45
0
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0 to 0.7