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Grade 4 Titanium vs. EN 1.4305 Stainless Steel

Grade 4 titanium belongs to the titanium alloys classification, while EN 1.4305 stainless steel belongs to the iron alloys. There are 31 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 grade 4 titanium and the bottom bar is EN 1.4305 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
200 to 270
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 17
14 to 40
Fatigue Strength, MPa 340
190 to 330
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
77
Shear Strength, MPa 390
420 to 550
Tensile Strength: Ultimate (UTS), MPa 640
610 to 900
Tensile Strength: Yield (Proof), MPa 530
220 to 570

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Maximum Temperature: Mechanical, °C 320
930
Melting Completion (Liquidus), °C 1660
1420
Melting Onset (Solidus), °C 1610
1380
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 19
15
Thermal Expansion, µm/m-K 9.4
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 6.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 37
15
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
3.0
Embodied Energy, MJ/kg 500
42
Embodied Water, L/kg 110
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
110 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 1330
120 to 830
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 40
22 to 32
Strength to Weight: Bending, points 37
20 to 27
Thermal Diffusivity, mm2/s 7.6
4.0
Thermal Shock Resistance, points 46
14 to 20

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.1
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0
0 to 1.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
66.4 to 74.9
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0
8.0 to 10
Nitrogen (N), % 0 to 0.050
0 to 0.1
Oxygen (O), % 0 to 0.4
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0.15 to 0.35
Titanium (Ti), % 98.6 to 100
0
Residuals, % 0 to 0.4
0