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Titanium grade overview and equivalent specification

Time:2022/01/30 Pageviews:0 Share:
Titanium Grade 1:
Commercially Pure Titanium Grade 1 is the softest titanium and has the highest ductility. It has good cold forming characteristics and provides excellent corrosion resistance. It also has excellent welding properties and high impact toughness.
Due to above features, it has been widely used in the chemical and marine industries, also in airframes where maximum ease of formability is desired.
Chemical composition:Pure Titanium
Equivalent GB/T(China), JIS(Japan):TA1,TP270

Titanium Grade 2:
Commercially Pure Titanium Grade 2 has moderate strength and excellent cold forming properties. It provides excellent welding properties and has excellent resistance to oxidation and corrosion.
Its corrosion resistant is valuable in the chemical and offshore industries and in aircraft construction where a certain strength level and ease of formability is desired. Also in heat exchangers, hypochlorite systems, fire water systems, ballast water systems, risers, fittings, flanges, fasteners, pumps and valves.
Chemical composition:Pure Titanium
Equivalent GB/T(China), JIS(Japan):TA2,TP340

Titanium Grade 3:
Commercially Pure Titanium Grade 3 is stronger and less formable than Titanium Grades 1 and 2. It has very good weldability. Mainly used in Aerospace and industrial applications that require moderate strength. Grade 3 titanium has excellent corrosion resistant in oxidizing and mildly reducing environments, including chlorides.
Chemical composition:Pure Titanium
Equivalent GB/T(China), JIS(Japan):TA3,TP450

Titanium Grade 4:
Commercially Pure Titanium Grade 4 is stronger than CP Grades 2 & 3 – it can be cold formed, but has lower ductility. It has excellent corrosion resistance in a wide variety of environments. Grade 4 titanium is commonly used in Aerospace, Industrial and Medical applications where high strength is needed.
Other applications includes Chemical process, Industrial, Marine and Medical.
Chemical composition:Pure Titanium
Equivalent GB/T(China), JIS(Japan):TA4,TP550

Titanium Grade 5:
Titanium Grade 5 alloy is the most commercially available and most commonly used among all titanium alloys. It offers an excellent combination of high strength and toughness. Grade 5 titanium has good welding and fabrication characteristics.
Its application includes compressor blades, discs and rings for jet engineers, aircraft components, pressure vessels, rocket engine cases, offshore pressure vessels, chemical processing and medical.
Chemical composition:Ti-6Al-4V
Equivalent GB/T(China), JIS(Japan):TC4,TAP6400

Titanium Grade 6:
Titanium Grade 6 alloy offers good weldability therefore ideal for forgings and sheet metal parts such as aircraft engine compressor blades and ducting, steam turbine blades, rocket engine, ordnance components. It has good oxidation resistance and strength at 315-540 °C. It has good stability at elevated temperatures and can be cold-worked and used only in annealed condition.
Chemical composition:Ti-5Al-2.5Sn
Equivalent GB/T(China), JIS(Japan):TA7,TAP5250

Titanium Grade 7:
Titanium Grade 7 has physical and mechanical properties equivalent to CP3 titanium or Grade 2. It has excellent welding and fabrication properties and is extremely resistant to corrosion especially from reducing acids.
Applications:Chemical Processing, Desalination, Power generation
Chemical composition:Ti-0.2Pd
Equivalent GB/T(China), JIS(Japan):TA9,TP340Pb

Titanium Grade 9:
Titanium Grade 9 has medium strength that falls between Grade 4 and Grade 5. It has excellent corrosion resistance and is used in Aerospace and Industrial applications. Grade 9 Titanium can be used at higher temperatures than Grades 1 through 4. Grade 9 titanium has good cold rolling properties. It sometimes referred to as "half 6-4". It offers 20-50% higher strength than C.P. grades, but is more formable and weldable than Ti-6AI-4V.
Applications:Aerospace, Automotive, Chemical processing, Consumer applications, Marine, Medical, Transportation
Chemical composition:Ti-3Al-2.5V
Equivalent GB/T(China), JIS(Japan):TA18,TAP3250

Titanium Grade 11:
Titanium Grade 11 is highly resistant to corrosion and has similar physical and mechanical properties to Titanium CP Grade 2.
Applications:Chemical processing, Desalination Power generation, Industrial
Chemical composition:Ti-0.2Pd
Equivalent GB/T(China), JIS(Japan):TA9-1

Titanium Grade 12:
This Titanium Grade 12 alloy is similar to Titanium Grades 2 and 3 except that Titanium Grade 12 has 0.3% molybdenum and 0.8% nickel. This offers enhanced corrosion resistance.
Applications:Chemical processing, Desalination, Power generation, Industrial
Chemical composition:Ti-0.3Mo-0.8Ni
Equivalent GB/T(China), JIS(Japan):TA10

Titanium Grade 17:
Ti Grade 17 is an unalloyed titanium grade with low oxygen content and addition of palladium (0.04–0.08%). It has very good corrosion resistance for chemical processing industry applications in which the liquid medium is mildly reducing or varies between oxidizing and reducing. Palladium improves resistance to crevice corrosion.
Chemical composition:Ti-0.05Pd
Equivalent GB/T(China), JIS(Japan):TA8-1

Titanium Grade 18:
Grade 18 is identical to Grade 9 with the exception of the addition of palladium to increase the corrosion resistance. Mechanical and physical properties, specifications and forms are all identical to those of Grade 9. The alloys composition differs by the addition of 0.04-0.08% Pd.
Chemical composition:Ti-3Al-2.5V-0.05Pd
Equivalent GB/T(China), JIS(Japan):TA25

Titanium Grade 19:
Titanium Grade 19 has very high strength and can be heat treated. It offers good resistance to stress and corrosion.
Applications:Aerospace Automobile
Chemical composition:Ti-3Al-8V-6Cr-4Mo-4Zr
Equivalent GB/T(China), JIS(Japan):TB9

Titanium Grade 20:
Grade 20 has identical mechanical and physical properties to Grade 19 but has the addition of palladium (0.04-0.08%) to increase its corrosion resistance in extreme sour environments at elevated temperature.
Chemical composition:Ti-3Al-8V-6Cr-4Mo-4Zr-0.06Pd
Equivalent GB/T(China), JIS(Japan):TB9

Titanium Grade 21:
Beta 21S Titanium is a high strength, heat treatable, metastable beta titanium alloy. It is engineered specifically to improve resistance to oxidation and creep along with enhanced elevated temperature strength and stability. It has excellent resistance to the hydraulic fluids used in aircraft.
Chemical composition:Ti-15Mo-3Al-2.7Nb-0.25Si
Equivalent GB/T(China), JIS(Japan):TB8

Titanium Grade 23:
Titanium Grade 23 is similar to Grade 5 but has lower oxygen, nitrogen and iron. It has better ductility and fracture toughness than Titanium Grade 5.
Applications:Aerospace, Chemical Processing, Marine, Medical
Chemical composition:Ti-6Al-4V-Extra low Interstitial
Equivalent GB/T(China), JIS(Japan):TC4 ELI

Titanium Grade 24:
Grade 24 titanium is a titanium alloy formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition. It has a moderately high heat capacity among wrought titaniums. In addition, it has a moderately low melting temperature and a moderately high embodied energy.
Chemical composition:Ti-6Al-4V-0.05Pd
Equivalent GB/T(China), JIS(Japan):TC22

Titanium Grade 28:
Grade 28 alloy is a ruthenium-enhanced version of grade Ti-3Al-2.5V with similar physical and mechanical properties. Ruthenium provides this alloy with improved corrosion resistance. This alloy provides high resistance to dilute reducing acids and crevice corrosion in hot halide (brine) solution.
Chemical composition:Ti-3Al-2.5V-0.1Ru
Equivalent GB/T(China), JIS(Japan):TA26

Titanium Grade 29:
Titanium Grade 29 is an alpha-beta titanium alloy which, by addition of small amount of ruthenium (0.08~0.14%) becomes more corrosion resistant than the renown Ti6Al4V-ELI alloy (Grade 23).
Chemical composition:Ti-6Al-4V-0.1Ru
Equivalent GB/T(China), JIS(Japan):TC23