commercially pure/Unalloyed Titanium

Grade 1

Composition

Commercially pure, Unalloyed, with minor interstitials.

Common Shapes

Grade 1 Titanium is commonly available in:

  • Sheets and Plates

  • Welded Tubes and Pipes 

  • Wire

  • Bars

  • Ingot

Characteristics

  • Good ductility

  • Good cold formability

  • High impact toughness

  • Good oxidation and chloride corrosion resistance

Uses

  • Heat Exchangers

  • Marine Parts

  • Chemical industry parts

  • Airframes

  • Jewellery

Weldability

Welding of Grade 1 Titanium is easily achieved via the GTAW welding process.

Machinability

Grade 1 Titanium is easily machined.

UNS Number:

R50250

Grade 2

Composition

Commercially pure unalloyed Titanium with minor, controlled, interstitials including; 0.03% Nitrogen, ≤0.015 Carbon, ≤0.25% Oxygen and ≤0.30% Iron, with 

Common Shapes

Grade 2 Titanium is commonly available in:

  • Sheets and Plates

  • Welded Tubes and Pipes

  • Seamless Tubing

  • Wire

  • Billet

  • Bars

  • Rods

  • Cast products

Characteristics

  • Moderate strength

  • Good cold formability

  • Good fabricability

  • Excellent corrosion resistance to highly oxidising media, with or without chlorides

Uses

  • Chemical industry equipment

  • Marine structures and equipment

  • Automotive parts e,g, Exhausts

  • Aircraft components

  • Heat exchangers

  • Cryogenic vessels

  • Piping systems

  • Shafts

  • Pumps

  • Jewellery

Weldability

Grade 2 Titanium has excellent weldability.

Machinability

It is relatively straightforward to machine Grade 2 Titanium.

UNS Number:

R50400

Grade 3

Composition

Commercially pure unalloyed Titanium with minor,  controlled, interstitials including; 0.05% Nitrogen, ≤0.08 Carbon ≤0.015 Hydrogen ≤0.30% Iron and ≤0.35% Oxygen.

Common Shapes

Grade 3 Titanium commonly available in:

  • Ingot

  • Billet

  • Plate

  • Welded Tubes and Pipes 

  • Bar

Characteristics

  • Stronger version of Grade 2

  • Similar corrosion resistance to Grade 2

  • Reasonable cold ductility/formabilty

Uses

  • Chemical processing equipment

  • Marine applications

  • Power plant cooling components

Weldability

Grade 3 Titanium has excellent weldability.

Machinability

Machining of Grade 3 Titanium is difficult, but can be achieved with slow speeds, high coolant flows and high feed rates.

UNS Number:

R50550

Grade 4

Common Shapes

Grade 4 Titanium is commonly available in:

  • Ingot

  • Plate

  • Billet

  • Bar

  • Strip

Characteristics

  • Strongest commercially pure Titanium

  • Reduced ductility and formability

  • Good corrosion resistance

Uses

  • Anodes and Cathodes

  • Aircraft ducting

  • Aircraft hydraulic tubing

  • Chemical processing equipment

Weldability

Grade 4 Titanium has good weldability

UNS Number:

R50700

Composition

Commercially pure unalloyed Titanium with minor,  controlled, interstitials including; 0.05% Nitrogen, ≤0.08 Carbon ≤0.015 Hydrogen ≤0.50% Iron and ≤0.40% Oxygen.

Machinability

Machining of Grade 4 Titanium is difficult, but can be achieved with slow speeds, high coolant flows and high feed rates.

Grade 7

Common Shapes

Grade 7 Titanium is commonly available in:

  • Plates

  • Welded Tubes and Pipes 

  • Wire

  • Ingot

  • Bar

  • Billet

  • Strip

Characteristics

  • Most resistant Titanium Alloy to corrosion in reducing acids

  • Most resistant Titanium Alloy to localised attack in Halide media

  • Mechanical properties equivalent to Grade 2 Titanium

  • Excellent fabricability

Uses

  • Anodes and Cathodes

  • Air pollution control equipment

  • Equipment used in chemical processing

  • Desalination plant equipment

  • Machinery for the paper-making industry

Weldability

Grade 7 Titanium has excellent welding properties.

Machinability

Grade 7 Titanium has good machinability

UNS Number:

R52400

Composition

Commercially pure unalloyed Titanium with minor,  controlled, interstitials including; 0.03% Nitrogen, ≤0.08 Carbon ≤0.015 Hydrogen ≤0.3% Iron, 0.12-0.25 Palladium and ≤0.25% Oxygen.

Grade 11

Common Shapes

Grade 11 Titanium is commonly available in:

  • Plate

  • Ingot

  • Billet

  • Welded Tubes and Pipes 

  • Wire

  • Bar

Characteristics

  • Most resistant Titanium Alloy to corrosion in reducing acids

  • Most resistant Titanium Alloy to localised attack in hot Halide media

  • Mechanical and good formability properties equivalent to Grade 1 Titanium

Uses

  • Anodes and Cathodes

  • Equipment used in chemical processing

  • Desalination plant equipment

  • Equipment used in hydrometallurgical extraction

  • Hydrocarbon refining equipment

  • Machinery for paper-making industry

Weldability

Grade 11 Titanium has excellent weldability.

Machinability

Grade 11 Titanium has good machining properties.

UNS Number:

R52250

Composition

Commercially pure unalloyed Titanium with minor,  controlled, interstitials including; 5.5-6.5 Nitrogen, ≤0.10 Carbon ≤0.015 Hydrogen ≤0.20 Iron, 0.12-0.25 Palladium and ≤0.18 Oxygen

Grade 16

Common Shapes

Grade 16 Titanium is commonly available in:

  • Plates

  • Ingot

  • Welded Tubes and Pipes 

  • Wire

  • Bar

  • Strip

Characteristics

  • Lower Palladium version of Grade 7 Titanium

  • Equivalent mechanical properties of Grade 7 Titanium, including high corrosion resistance and good fabricability

Uses

  • Anodes and Cathodes

  • Air pollution control equipment

  • Equipment used in chemical processing

  • Desalination plant equipment

  • Equipment used in hydrometallurgical extraction

  • Hydrocarbon refining equipment

  • Machinery for paper-making industry

Weldability

Grade 16 Titanium has very good welding properties.

Machinability

Grade 16 Titanium has good machining characteristics.

UNS Number:

R52402

Composition

Commercially pure unalloyed Titanium with minor,  controlled, interstitials including; 0.03 Nitrogen, ≤0.08 Carbon ≤0.015 Hydrogen ≤0.30 Iron, 0.04-0.08 Palladium and ≤0.25 Oxygen

Grade 17

Common Shapes

Grade 17 Titanium is commonly available in:

  • Plates

  • Welded Tubes and Pipes 

  • Wire

  • Ingot

  • Bar

  • Billet

  • Strip

Characteristics

  • Lower Palladium version of Grade 11 Titanium

  • Equivalent mechanical properties to Grade 11 Titanium, including high corrosion resistance and good fabricabilty

Uses

  • Anodes and Cathodes

  • Equipment used in chemical processing

  • Desalination plant equipment

  • Equipment used in hydrometallurgical extraction

  • Hydrocarbon refining equipment

  • Machinery for paper-making industry

Weldability

Grade 17 Titanium has excellent weldability.

Machinability

Grade 17 Titanium has good machining characteristics.

UNS Number:

R52252

Composition

Commercially pure unalloyed Titanium with minor,  controlled, interstitials including; 5.5-6.5 Nitrogen, ≤0.10 Carbon ≤0.015 Hydrogen ≤0.20 Iron, 0.04-0.08 Palladium and ≤0.18 Oxygen

Grade 26

Composition

Commercially pure unalloyed Titanium with minor,  controlled, interstitials including; 0.03 Nitrogen, ≤0.08 Carbon ≤0.015 Hydrogen ≤0.30 Iron, 0.8-0.14 Ruthenium and ≤0.25 Oxygen

Characteristics

  • A Ruthenium containing alternative to Grade 7 Titanium.

  • Equivalent mechanical properties to Grade 7 with similar fabricability properties and corrosion resistance.

Weldability

Grade 26 Titanium has excellent weldability.

Machinability

Grade 26 Titanium has good machinability.

Common Shapes

Grade 26 Titanium is commonly available in:

  • Plate

  • Welded Tubes and Pipes 

  • Wire

  • Strip

  • Billet

  • Ingot

  • Bar

Uses

  • Anodes and Cathodes

  • Air pollution control equipment

  • Equipment used in chemical processing

  • Desalination plant equipment

  • Equipment used in hydrometallurgical extraction

  • Hydrocarbon refining equipment

  • Machinery for the paper-making industry

UNS Number:

R52404

Grade 27

Common Shapes

Grade 27 Titanium is commonly available in:

  • Plates

  • Welded Tubes and Pipes 

  • Billet

  • Ingot

  • Strip

  • Bar

Characteristics

  • A Ruthenium containing alternative to Grade 11 Titanium.

  • Equivalent mechanical properties to Grade 11 Titanium with similar fabricability and corrosion resistance.

Uses

  • Anodes and Cathodes

  • Equipment used in chemical processing

  • Desalination plant equipment

  • Equipment used in hydrometallurgical extraction

  • Hydrocarbon refining equipment

  • Machinery for the paper-making industry

Weldability

Grade 27 Titanium is readily weldable.

Machinability

Grade 27 Titanium has good machining properties.

UNS Number:

R52254

Composition

Commercially pure unalloyed Titanium with minor,  controlled, interstitials including; 0.03 Nitrogen, ≤0.08 Carbon, ≤0.015 Hydrogen ≤0.20 Iron, 0.08-0.14 Ruthenium and ≤0.18 Oxygen

Integ Metals // Materials // Titanium // CP & Unalloyed 
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An Introduction

Commercially Pure and Unalloyed Titanium Alloys are used in industries where their combined high corrosion resistance and good formability is a necessary requirement, but ultimate strength is not. Commercially Pure Titanium Alloys are those which have a Titanium content of no less than 99%, with additional interstitials containing controlled amounts of Nitrogen, Carbon, Hydrogen, Iron and Oxygen making up the balance. The traditionally termed Commercially Pure grades are Grades 1-4. Grade 1 Titanium has the greatest corrosion resistance and formability with a relatively low strength. The pattern reverses through Grades 2 and 3 until we reach Grade 4 Titanium, which is the strongest Commercially Pure Alloy, but with only moderate formability. Grades 7, 11, 16 and 17 are included in the CPUA category because they only contain trace amounts of Palladium (Max. 0.25%) to increase corrosion resistance. Additionally, Grades 26 and 27 are included as they possess similar mechanical qualities to Grades 7 and 11 respectively, but with Ruthenium replacing their Palladium.

 

All grades, shapes and specifications of Commercially Pure and Unalloyed Titanium are available directly through Integ Metals, so please feel free to read through the information on this page for reference, or contact us directly with your requirements. 

 
 
 
 
 
 
 
 
 
 
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