Difference Between Stainless Steel and Titanium Alloy

Titanium Vs Stainless Steel

Titanium and stainless steel are two of the strongest and most versatile metals used in the industry today. Both these grades are an excellent choice for different applications due to their superior chemical and physical properties. They can be differentiated based on certain key features.

  • Titanium is a naturally occurring element and is generally available in pure or as an alloy. Stainless steel is not naturally occurring and is produced containing iron and carbon with 11% of chromium and few other constituents.
  • Titanium is alloyed with vanadium and aluminum and is stronger than low or medium grades of stainless steel. But, the higher grade of stainless steel is stronger than a titanium grade.
  • Titanium is lightweight and has a better strength-to-weight ratio in comparison to stainless steel.
  • Stainless steel has higher hardness as well as elasticity as compared to titanium.
  • Stainless steel offers a cost-effective alternative to a titanium grade.
  • A stainless steel grade offers better weldability in comparison to the latter.
  • Titanium and stainless steel are generally silver in color. However, titanium is slightly darker than stainless steel.
  • Titanium is denser and is biocompatible with stainless steel.
  • Titanium has a higher resistance to fatigue in fluctuating conditions. Stainless steel may shatter or be fatigued in constantly changing conditions.

Titanium Vs Stainless Steel Corrosion Resistance

  • Titanium has incredible corrosion resistance properties. The titanium grade forms a thin, impenetrable layer that creates an oxide layer on its surface when exposed to air. The oxide layers are tolerant to most sources of corrosive affluents and are a perfect choice for different outdoor applications.
  • Stainless steel performs well under normal conditions than titanium. These steel grades are susceptible to corrosion and require regular condition to avoid any rusting. The best way to protect the pipe is to cover it with paint to limit exposure to air.

Advantages & Disadvantages of Stainless Steel

A stainless steel grade is a most common and widely used material in the market. This steel is inexpensive and easy to acquire. Stainless steel is renowned for its good strength and durability. They have good structural integrity in harsh environments like tornadoes, hurricanes, etc. This steel is sustainable and can be readily reused without losing its strength and versatility. They have greater flexibility and are customizable compared to other grades.

The major disadvantage of stainless steel is that it requires higher maintenance to avoid rusting and corrosion. The steel may be in danger of deformation in high temperatures and can collapse the structure. The stainless steel grade is not aesthetically appealing to look at due to its poor surface finish.

Advantages & disadvantages of Titanium

A titanium grade has incredible corrosion resistance properties as it forms an oxide layer that gives it higher resistance to different outdoor applications. The grade has higher strength and is lightweight. The titanium grade demonstrates extreme workability at extreme pressure and doesn’t suffer any contraction or expansion. A non-toxic element has usually a higher melting point of around 1668 degrees C and is used in turbine engines, etc.

A few disadvantages of titanium is that it has a higher cost and showcase a lower modulus of elasticity and can be easily deformed. Extracting titanium is difficult very hard or cast and has higher complicated processing time.

Application of Stainless Steel And Titanium Alloy

Stainless steel is a very common metal that is used in the construction and manufacturing process as it is very flexible as well as hard. Since it can be easily welded it is also seen in chemical processing equipment and industrial sectors. The grade is also used in manufacturing blades and knives due to their long service life, and they don’t deform easily.

Titanium alloy has an impressive strength-to-weight ratio and is used in applications where there is a requirement for strength, as well as lightweight. They are common in ship hulls, propeller shafts, and other marine applications. Titanium is also seen on aerospace equipment, jewelry, medical sectors, storing nuclear waste, etc.

Price difference between Titanium Vs Stainless Steel 

Titanium is a naturally occurring alloy, so extracting and processing it is time-consuming and requires manpower. A titanium-grade product is generally expensive in comparison to stainless steel. Titanium is available at prices between $35 to $50 per kg, with ss being priced between $1 to $1.50 per kg.

Titanium Vs Stainless Steel

Check Price and Weight Chart Of Stainless Steel and Titanium

View Titanium Vs Stainless Steel Corrosion Resistance and Density

Titanium Vs Stainless Steel Density

ss 8.0 g/cm3(304 steels)
titanium alloy 4.43 g/cm3(Ti-6Al-4V)

Stainless Steel Vs Titanium Alloy Properties

Material Yield Strength Melting Point Thermal Conductivity
ferritic stainless steels 310 MPa 1450°C 26 W/(m.K)
martensitic stainless steels 450 MPa 1450°C 24 W/(m.K)
Ti-6Al-4V – Grade 5 titanium alloy 1100 MPa 1660°C 6.7 W/(m.K)
Use Of Titanium and Stainless Steel In Fracture Fixation

Equivalent Of SS And Titanium

Titanium Grade 5 N06022 2.4602 NiCr21Mo14W NW 6022
Titanium Grade 2 N10276 2.4819 NiMo16Cr15W NW 0276 ХН65МВ

Stainless Steel Equivalent

Grade UNS No BS Euronorm No.
SS 301 S30100 301S21 1.4310
SS 302 S30200 302S25 1.4319
SS 303 S30300 303S31 1.4305
SS 304 S30400 304S31 1.4301
SS 304L S30403 304S11 1.4306
ss 304H S30409 - 1.4948
SS (302HQ) S30430 394S17 1.4567
SS 305 S30500 305S19 1.4303
SS 309S S30908 309S24 1.4833
SS 310 S31000 310S24 1.4840
SS 310S S31008 310S16 1.4845
SS 314 S31400 314S25 1.4841
SS 316 S31600 316S31 1.4401
SS 316L S31603 316S11 1.4404
SS 316H S31609 316S51 -
SS 316Ti S31635 320S31 1.4571
SS 321 S32100 321S31 1.4541
SS 347 S34700 347S31 1.4550
SS 403 S40300 403S17 1.4000
SS 405 S40500 405S17 1.4002
SS 409 S40900 409S19 1.4512
SS 410 S41000 410S21 1.4006
SS 416 S41600 416S21 1.4005
SS 420 S42000 420S37 1.4021
SS 430 S43000 430S17 1.4016
SS 440C S44004 - 1.4125
SS 444 S44400 - 1.4521
SS 630 S17400 - 1.4542
SS (904L) N08904 904S13 1.4539
SS (253MA) S30815 - 1.4835
(2205) S31803 318S13 1.4462
(3CR12) S41003 - 1.4003
(4565S) S34565 - 1.4565
(Zeron100) S32760 - 1.4501
(UR52N+) S32520 - 1.4507
Check Mechanical/ Chemical Properties Of Stainless Steel and Titanium Alloy

Chemical Properties Of Stainless Steel and Titanium Alloy

Titanium Gr 5 C Ti N Fe H O V Al
0.10 maximum 90 min 0.05 maximum 0.40 maximum 0.015 maximum 0.20 maximum 3.5-4.5 5.5-6.75 maximum
Titanium Gr 2 C Ti N Fe H O V Al
0.1 maximum 99.2 min 0.03 maximum 0.3 maximum 0.015 maximum 0.25 maximum

SS Chemical Composition

Material AISI 316 L 1.4404 AISI 304 1.4301
Carbon (C %) Max. 0.03 Max. 0.07
Chromium (Cr %) 16.5 - 18.5 17.0 - 19.0
Nickel (Ni %) 11.0 - 14.0 8.5 - 10.5
Molybdenum (Mo %) 2.0 - 2.5 -
Manganese (Mn %) Max. 2.0 Max. 2.0
Silicium (Si %) Max. 1.0 Max. 1.0
Sulphur (S %) Max. 0.030 Max. 0.030

Physical Properties Of SS and Titanium Alloy

Nominal Beta Transus 913 (1675) °C (°F)
Density 4.51(0.163) g/cm3 (lbs/in3)
Melting Point, Approx. 1660 (3020) °C (°F)
Electrical Resistivity @ R.T. 56 (22) 10-6 ohm•cm (10-6 ohm•in)
Modulus of Elasticity – Tension 103 (15) GPa (103 ksi)
Coefficient of Thermal Expansion 10-6/˚C (10-6/˚F) 8.6(4.8) 0-100˚C (32 -212˚F)
9.2(5.1) 0-315˚C (32-600˚F)
9.7(5.4) 0-538˚C (32-1000˚F)
10.1(5.6) 0-648˚C (32-1200˚F)
10.1(5.6) 0-816˚C (32-1500˚F)
Modulus of Elasticity – Torsion 41 (6.0) GPa (103 ksi)
Thermal Conductivity 20.8 (12.0) W/m•˚C (BTU/hr•ft•˚F)
Specific Heat 520 (0.124) J/Kg•˚C (BTU/lb•˚F)

Stainless Steel Physical Properties

Structure Austenitic (nonmagnetic) Austenitic (nonmagnetic)
State Non-annealed
Specific gravity (g/cm3) 7.98 7.9
Melting point (°C) Ca. 1400 Ca. 1400
Decortication temperature in air (°C) 800 - 860 800 - 860
Expansion coefficient 20 - 100 °C (m/m . °C) 16.5 x 10-6 16.5 x 10-6
Specific resistance (20° C) (Ohm . mm2/m) 0.75 0.73
Heat conductivity (20°C) (W/°C-m) 15 15
Specific heat (J/g . k) 0.5 0.5

Price Difference Between Titanium and Stainless Steel

Titanium $40.00-$50.00/ Kilogram
Stainless Steel $1.50-$1.50/ Kilogram
Rising Steel Industries