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EN 1.4729 Stainless Steel vs. AISI 316Ti Stainless Steel

Both EN 1.4729 stainless steel and AISI 316Ti stainless steel are iron alloys. Both are furnished in the annealed condition. They have 81% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.4729 stainless steel and the bottom bar is AISI 316Ti stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 15
41
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 75
82

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 390
470
Maximum Temperature: Mechanical, °C 850
940
Melting Completion (Liquidus), °C 1420
1450
Melting Onset (Solidus), °C 1380
1380
Specific Heat Capacity, J/kg-K 490
470
Thermal Conductivity, W/m-K 24
15
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 7.5
19
Density, g/cm3 7.6
7.9
Embodied Carbon, kg CO2/kg material 2.1
4.0
Embodied Energy, MJ/kg 29
55
Embodied Water, L/kg 100
150

Common Calculations

PREN (Pitting Resistance) 14
26
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Thermal Diffusivity, mm2/s 6.5
4.0

Alloy Composition

Carbon (C), % 0.3 to 0.5
0 to 0.080
Chromium (Cr), % 12 to 14
16 to 18
Iron (Fe), % 80.4 to 86.7
61.3 to 72
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0 to 0.5
2.0 to 3.0
Nickel (Ni), % 0 to 1.0
10 to 14
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 1.0 to 2.5
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 0
0 to 0.7