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AISI 403 Stainless Steel vs. Grade 12 Titanium

AISI 403 stainless steel belongs to the iron alloys classification, while grade 12 titanium belongs to the titanium 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 AISI 403 stainless steel and the bottom bar is grade 12 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 240
170
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 16 to 25
21
Fatigue Strength, MPa 200 to 340
280
Poisson's Ratio 0.28
0.32
Reduction in Area, % 47 to 50
28
Shear Modulus, GPa 76
39
Shear Strength, MPa 340 to 480
330
Tensile Strength: Ultimate (UTS), MPa 530 to 780
530
Tensile Strength: Yield (Proof), MPa 280 to 570
410

Thermal Properties

Latent Heat of Fusion, J/g 270
420
Maximum Temperature: Mechanical, °C 740
320
Melting Completion (Liquidus), °C 1450
1660
Melting Onset (Solidus), °C 1400
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 28
21
Thermal Expansion, µm/m-K 9.9
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
3.3
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 6.5
37
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 1.9
31
Embodied Energy, MJ/kg 27
500
Embodied Water, L/kg 99
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
110
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 840
770
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 19 to 28
32
Strength to Weight: Bending, points 19 to 24
32
Thermal Diffusivity, mm2/s 7.6
8.5
Thermal Shock Resistance, points 20 to 29
37

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 11.5 to 13
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 84.7 to 88.5
0 to 0.3
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0
0.2 to 0.4
Nickel (Ni), % 0 to 0.6
0.6 to 0.9
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
97.6 to 99.2
Residuals, % 0
0 to 0.4