Unique for its strength, lightness of weight and corrosion resistance

• Lightweight and high strength
• Corrosion resistant to chlorides, sea water & chlorine
• Excellent mechanical properties 
• Titanium grades, chemistry & specifications
• Titanium socket head cap screw features and benefits
• Temperature vs strength data
• In-depth information on Grade 2 and Grade 5

Titanium socket head cap screws are best known for being strong, lightweight and corrosion resistant. One property that stands out when compared to other metal socket head cap screws is that titanium socket head cap screws have the highest strength-to-weight ratio with a density of 4.51 g /cm³. As an example, titanium grade 5 is 4 times stronger than 316 stainless steel at nearly half the weight. This makes titanium socket head cap screws ideal for applications that require both lightness of weight and excellent strength such as oil & gas (down-hole), military and sporting goods. 

Titanium socket head cap screws are also unique among metals in the chemical processing industry for handling chlorine (wet) and chlorine compounds in aqueous solutions. Titanium socket head cap screws are fully resistant to solutions of chlorides, hypochlorites, chlorates, perchlorates and chlorine dioxide. As a result titanium socket head cap screws are often using within the chlorine related industries such as pulp and paper and chlor-alkali / bleach.

Titanium socket head cap screws are also an excellent material to prevent seawater corrosion. Because titanium socket head cap screws can resists corrosion by seawater up to temperatures as high as 500°F (260°C) as well as survive at ocean depths over a mile below the surface, titanium socket head cap screws are used throughout the oil & gas, desalination and marine industries.

The most common grades of Titanium socket head cap screws are Grade 2 and Grade 5. Gain more insight on these by accessing our Grade 2 and Grade 5 overviews or by contacting our engineering experts.

Resources: Titanium Torque Specs

Screw Types: 12 Point Screws, Button Head Cap Screws, Flat Head Screws, Hex Head Cap Screws, Pan Head Screws, Set Screws, Socket Head Cap Screws, Torx Screws, Vented Screws

Titanium Socket Head Cap Screw Features & Benefits

When it comes to titanium socket head cap screws, it’s all about clearance. These screws are the best choice for applications with limited installation access or clearance. Yet if you have an application with a lot of debris, you may want to select a titanium hex head bolt or hex head cap screw, as they don’t have a socket drive which could get clogged.

Advantages:

• Ideal for applications with limited access as they require very little clearance around the fastener.
• Socket head cap screws can be used in locations where externally wrenched fasteners aren't desirable.
• Weight reduction on application as titanium socket head cap screws are smaller – being that the cylindrical heads of socket screws need less space than hex heads and require no additional wrench space.
• Also known for safety, reliability and economy.

Titanium Grades, Chemistry & Specifications

Titanium Grade 2  (Commercially Pure)

Unalloyed titanium; Commercially pure titanium is the most common grade of titanium utilized throughout industry due to its ease of availability and good properties.

Titanium Grade 2 Specifications: UNS R50400,  ASTM B 348,  AMS 4921, ASTM F 67, ISO 5832-2, Werkstoff 3.7035

Titanium Grade 5 (Ti 6Al-4V)

Known as the “workhorse” of the titanium alloys, Ti 6Al-4V, or Grade 5 titanium, is 2x stronger than titanium grade 2. This alloy offers high strength and light weight, useful formability and high corrosion resistance. Ti 6AI-4V finds many uses in the aerospace, medical, marine and chemical processing industries.

Titanium Grade 5 Specifications:  ASTM - B265, B348, B381, B861, F467 and F468, AMS - 4911, 4928, 4935, 4965 and 4967, MIL-T - 9046 and - 9047, Werkstoff 3.7165

Titanium Grade 7 

Grade 7 is the most corrosion resistant of all titanium alloys and is typically used in chemical processes and production equipment components. Similar to Grade 2, but with the addition of 0.12 to 0.25% palladium, Grade 23 has enhanced corrosion resistance to reducing acids and localized attack in hot halides. 

Titanium Grade 7 Specifications: ASTM - B265, B337, B338, B348, B363, B381, B861 and B862, Werkstoff 3.7235

Titanium Grade 23 (TI 6AL-4V ELI)

Titanium grade 23 or TI 6AL-4V ELI is an Extra Low Intersticial grade. This grade is similar to Grade 5, but because of the low intersticials, its mechanical properties are enhanced. This ELI grade is often found in more demanding medical device applications as well as industrial applications.

Titanium Grade 23 Specifications: 

ASTM - B265, B348, B363, B381, B861, B862 andF136, AMS - 4907, 4930 and 4956

Other titanium grades are also available upon request.

Mechanical Properties

Titanium's Resistance to Chlorine

Corrosion Data

 Titanium Grade 5 Temperature vs. Strength