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Grade 1 Titanium vs. AISI 430 Stainless Steel

Grade 1 titanium belongs to the titanium alloys classification, while AISI 430 stainless steel belongs to the iron 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 grade 1 titanium and the bottom bar is AISI 430 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
160
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 28
24
Fatigue Strength, MPa 170
180
Poisson's Ratio 0.32
0.28
Reduction in Area, % 36
51
Shear Modulus, GPa 39
77
Shear Strength, MPa 200
320
Tensile Strength: Ultimate (UTS), MPa 310
500
Tensile Strength: Yield (Proof), MPa 220
260

Thermal Properties

Latent Heat of Fusion, J/g 420
280
Maximum Temperature: Mechanical, °C 320
870
Melting Completion (Liquidus), °C 1660
1510
Melting Onset (Solidus), °C 1610
1430
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 20
25
Thermal Expansion, µm/m-K 8.8
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 37
8.5
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 31
2.1
Embodied Energy, MJ/kg 510
30
Embodied Water, L/kg 110
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
100
Resilience: Unit (Modulus of Resilience), kJ/m3 230
170
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 19
18
Strength to Weight: Bending, points 23
18
Thermal Diffusivity, mm2/s 8.2
6.7
Thermal Shock Resistance, points 24
18

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.12
Chromium (Cr), % 0
16 to 18
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
79.1 to 84
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 0.75
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.095 to 100
0
Residuals, % 0 to 0.4
0