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S44627 Stainless Steel vs. Grade 3 Titanium

S44627 stainless steel belongs to the iron alloys classification, while grade 3 titanium belongs to the titanium alloys. There are 32 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 S44627 stainless steel and the bottom bar is grade 3 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 24
21
Fatigue Strength, MPa 200
300
Poisson's Ratio 0.27
0.32
Reduction in Area, % 51
34
Shear Modulus, GPa 80
39
Shear Strength, MPa 310
320
Tensile Strength: Ultimate (UTS), MPa 490
510
Tensile Strength: Yield (Proof), MPa 300
440

Thermal Properties

Latent Heat of Fusion, J/g 290
420
Maximum Temperature: Mechanical, °C 1100
320
Melting Completion (Liquidus), °C 1440
1660
Melting Onset (Solidus), °C 1400
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 17
21
Thermal Expansion, µm/m-K 11
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 14
37
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 2.9
31
Embodied Energy, MJ/kg 41
510
Embodied Water, L/kg 160
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
100
Resilience: Unit (Modulus of Resilience), kJ/m3 220
910
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 18
32
Strength to Weight: Bending, points 18
32
Thermal Diffusivity, mm2/s 4.6
8.6
Thermal Shock Resistance, points 16
37

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.080
Chromium (Cr), % 25 to 27.5
0
Copper (Cu), % 0 to 0.2
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 69.2 to 74.2
0 to 0.3
Manganese (Mn), % 0 to 0.4
0
Molybdenum (Mo), % 0.75 to 1.5
0
Nickel (Ni), % 0 to 0.5
0
Niobium (Nb), % 0.050 to 0.2
0
Nitrogen (N), % 0 to 0.015
0 to 0.050
Oxygen (O), % 0
0 to 0.35
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
98.8 to 100
Residuals, % 0
0 to 0.4