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Grade 1 Titanium vs. S42300 Stainless Steel

Grade 1 titanium belongs to the titanium alloys classification, while S42300 stainless steel belongs to the iron alloys. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade 1 titanium and the bottom bar is S42300 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
330
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 28
9.1
Fatigue Strength, MPa 170
440
Poisson's Ratio 0.32
0.28
Reduction in Area, % 36
22
Shear Modulus, GPa 39
77
Shear Strength, MPa 200
650
Tensile Strength: Ultimate (UTS), MPa 310
1100
Tensile Strength: Yield (Proof), MPa 220
850

Thermal Properties

Latent Heat of Fusion, J/g 420
270
Maximum Temperature: Mechanical, °C 320
750
Melting Completion (Liquidus), °C 1660
1470
Melting Onset (Solidus), °C 1610
1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 20
25
Thermal Expansion, µm/m-K 8.8
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
4.5
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
5.2

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.5
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
3.2
Embodied Energy, MJ/kg 510
44
Embodied Water, L/kg 110
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
93
Resilience: Unit (Modulus of Resilience), kJ/m3 230
1840
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 19
39
Strength to Weight: Bending, points 23
30
Thermal Diffusivity, mm2/s 8.2
6.8
Thermal Shock Resistance, points 24
40

Alloy Composition

Carbon (C), % 0 to 0.080
0.27 to 0.32
Chromium (Cr), % 0
11 to 12
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
82 to 85.1
Manganese (Mn), % 0
1.0 to 1.4
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0
0 to 0.5
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 99.095 to 100
0
Vanadium (V), % 0
0.2 to 0.3
Residuals, % 0 to 0.4
0