Metline is specialist producer of Titanium RTJ Flanges, in Blind, Slip On and Weld Neck Type, with supplies in India and across the globe. We produce forged titanium flange or titanium plate flanges. All the titanium flange and titanium alloy flange could be customized as drawing or demands. Metline can supply titanium pipes, titanium fittings, titanium flanges, gaskets and titanium fasteners, nuts & bolts required for any type of piping fabrication project.

We specialise in the supply of Titanium RTJ Flanges in Grade 1, Grade 2, Grade 3, Grade 5, Grade 7, Grade 9, Grade 12, Grade 16 titanium and its alloys. Titanium and Titanium Alloy Flanges find application in various industries such as pulp and paper industry, water and seawater service, chemical processes involving oxidizing media and oxidizing acids. In addition to Titanium Flanges, Metline also produces Monel Flanges, Inconel Flanges and Hastelloy Flanges.

Titanium alloy flanges provide a high strength-to-weight ratio, while bridging the gap between the properties of steel and aluminum.

We are among the biggest exporter of Titanium Grade 2 and Titanium Grade 5 Flanges, with regular exports of slip on titanium flange, welding neck titanium flange, threaded titanium flange, plate type titanium flange, blind titanium flange, lap joint titanium flange, threaded titanium flanges and socket welding titanium flange.

A Ring Type Joint Flange is a type of flange that uses a metal ring that sits in a hexagonal groove as a gasket to seal the flange pair. The flanges seal when the bolts are tightened and the gasket is compressed into the groove making a metal to metal seal. An RTJ flange usually has a raised face with the groove machined into the face of the flange. The raised face doesn’t serve as a way to contain the pressure.

RTJ Flanges are used for high pressure applications up to pressures as high as 15,000 psi (103 MPa). It is only furnished only on steel or alloy valve bodies and usually need to specified when ordering. The flanges usually come in blind, slip-on, threaded and weld neck.

The benefits of using an RTJ flange and ring is that the gasket is confined to a groove and has two sealing surfaces. The groove assures that the ring centers itself when the bolts are tightened. It also is self actuating meaning that the sealing pressure increases when the process pressure increases.

The disadvantages of using RTJ Flanges is that ring type joint grooves can accumulate dirt or moisture when the flange is open. Since the seal is a metal on metal connection, a small amount of damage on the narrow sealing surface(s) may lead to a leak. Additionally, the grooves and gasket must align properly in order to assemble the flange and obtain a seal. They must stay aligned throughout the operating cycle. This is important if you are flanging up to dissimilar metals like stainless steel to carbon steel flanges.

Titanium Flanges Manufacturing & Supply Range from Metline

Products	Titanium Flange
Material Grade	Gr1, Gr1, Gr2, Gr3, Gr4, Gr7, Gr9, Gr23
Certification	EN 10204 3.1
Standard	ASME, ANSI B16.5, DIN2627-2628, EN 1092-1
Size	1/2″~ 30″NB, NPS 1/2 – NPS 24 (DN 10 – 2000)
Pressure Class	PN0.25~32Mpa
	(DIN) PN6,PN10,PN16,PN25 though PN250
	150LB, 250LB, 300LB, 400 LB, 500LB, 600 LB, 900LB, 1500LB, 2500LB
Technique	Forging, Cutting, Rolling and CNC Machining
Type	Weldneck Titanium Flanges, Slip On Titanium Flanges, Blind Titanium Flanges, Titanium Plate Flanges, Threaded Titanium Flanges, Titanium Lap Joint Flanges, Socket Weld Titanium Flanges, Custom Sizes
Flange Surface Facing	FF,RF,TG,RJ etc.

Comparison of Various Titanium Grades – Chemical & Mechanical Properties of Titanium Sheets

ASTM B265	Fe max	O max	N max	C max	H max	Pd	Al	V	Mo	Ni	Elongation	Rp  0.2	Rm
No	wt%	wt%	wt%	wt%	wt%	wt%	wt%	wt%	wt%	wt%	%	YS – MPa	UTS – MPa
Grade 1	0.2	0.18	0.03	0.1	0.015						24	170—310	240
Grade 2	0.3	0.25	0.03	0.1	0.015						20	275—450	345—480
Grade 3	0.25	0.3	0.05	0.1	0.015						18	360—480	480—700
Grade 4	0.5	0.4	0.05	0.1	0.015						15	500—530	600—680
Grade 5	0.4	0.2	0.05	0.1	0.015		5.5-6.7				10	800—1100	890—1400
Grade 6				0.1							16	780—820	820—860
Grade 7	0.3	0.25	0.03	0.1	0.015	0,12-0,25					20	275—450**	345
Grade 9	0.25	0.15	0.02	0.05	0.015		2,5—3,05				15	550	650
Grade 11	0.2	0.18	0.03	0.1	0.015	0.12—0.25					24	170-310**	240
Grade 12	0.3	0.25	0.03	0.1	0.015				0.3	0.8	25	414—460	499—600
Grade 13										0.5
Grade 14										0.5
Grade 15										0.5
Grade 16						0.04—0.08					27	345	485
Grade 17		0.18				0.04—0.08					35	206	345
Grade 18						0.04—0.08	3	2.5	4
Grade 19							3	8	4
Grade 20						0.04—0.08	3	8	4
Grade 21							3		15		15—8	880—1250	915—1350

 

Various Titanium Grades & their UNS Designations

Grades	UNS	Grades	UNS
CP Grade 1	R50350	CP Grade 2	R50400
CP Grade 3	R50550	CP Grade 4	R50700
Titanium Grade 6	R54520	CP Grade 7	R52400
Titanium Grade 9	R56320	CP Grade 11	R52252
CP Grade 12	R53400	CP Grade 16	R52402
CP Grade 17	R52252	CP Grade 26	R52404
CP Grade 27	R52404	Titanium Grade 28	R56323
Titanium Grade 29	R56404	Ti-10V-2Fe-3Al	R56410
Ti-13V-11Cr-3Al3-8-6-44	R58010	Ti-2.5Cu	–
Ti-3Al-8V-6Cr-4Mo-4Zr	–	Ti-4Al-4Mo-2Sn	–
Ti-5-2.5Sn ELI	R54521	Ti-5.8Al-4.0Sn-3.5Zr-0.7Nb-0.5Mo-0.35Si-0.06C	–
Ti-5Al-1Sn-1Zr-1V-0.8Mo	–	Ti-5Al-2Zr-2Sn-4Mo-4Cr	R58650
Ti-6Al-2Sn-2Zr-2Mo-2Cr-0.15Si	R56222	Ti-6Al-2Sn-4Zr-2Mo	R54620
Ti-6Al-2Sn-4Zr-6Mo	R56260	Ti-6Al-4V	R56400
Ti-6Al-4V ELI	R56407	Ti-6Al-6V-2Sn	R56620
Ti-6Al-7Nb	R56700	Ti-7Al-4Mo	R56740
Ti-8Al-1Mo-1V	R54810

Various Titanium Alloys – Manufactured & Supplied Worldwide

Grade 1 :Unalloyed Titanium. Relatively low strength, high ductility and excellent weldability. Highly corrosion resistant in oxidizing and mildly reducing environments, including chlorides. Main use in heat exchangers.

Grade 2 :Unalloyed Titanium. Most widely used titanium in all product forms for industrial use, offering an excellent balance of moderate strength, ductility and weldability. Medium oxygen. Used in piping systems and heat exchanger tubing.

Grade 3 :Unalloyed Titanium. Offers optimum ductility and cold formability with useful strength, high-impact toughness, and excellent weldability. Highly corrosion resistant in oxidizing and mildly reducing environments, including chlorides. Main use in shell and tube heat exchangers.

Grade 4 :The highest strength pure unalloyed Titanium. High oxygen, extra high strength. Good corrosion resistance in neutral to oxidizing environments, including chlorides. Used in hydraulic and instrumentation tubing.

Grade 5 :Titanium alloy. 6% aluminium, 4% vanadium. Grade 5 is the most widely used titanium alloy. It has very high strength but relatively low ductility. The main application of this alloy is in aircraft and spacecraft. Offshore use is growing. The alloy is weldable and can be precipitation hardened.

Grade 6 :Titanium Alloy. Useful for applications requiring good weldability, stability and strength at elevated temperatures, such as airframe and jet engines.

Grade 7 :Unalloyed Titanium plus 0.12% to 0.25% palladium. Medium strength, standard oxygen. Most corrosion-resistant titanium alloy in reducing and oxidizing environments, with a good balance of moderate strength, reasonable ductility and excellent weldability. Physical and mechanical properties equivalent to Grade 2.

Grade 9 :Titanium alloy including 3% aluminium and 2.5% vanadium. Also known as “half 6-4”. 20-50% higher strength than C.P. grades, but has better weldability and higher tensile strength than the strongest unalloyed grade. Usual applications found in Aerospace, petrochemical, hydraulic & instrumentation tubing, sports and subsea applications.

Grade 11 :Unalloyed Titanium plus 0.12% to 0.25% palladium. This alloy is the same as Grade 1, but with palladium added for better corrosion resistance. Low oxygen. Low strength. Especially suitable for deep drawing requiring optimum ductiility and cold formability. Also has excellent weldability.

Grade 12 :Titanium alloy including 0.3% molybdenum, 0.8% nickel. High strength. Good heat, wear and corrosion resistance. Used for shell and heat exchangers, hydrometallurgical applications.

Grade 13 :Titanium alloy including 0.5% nickel and 0.05% ruthenium. Low oxygen.

Grade 14 : Titanium alloy including 0.5% nickel and 0.05% ruthenium. Standard oxygen.

Grade 15 : Titanium alloy including 0.5% nickel and 0.05% ruthenium. Medium oxygen.

Grade 16 :Unalloyed Titanium plus 0.04% to 0.08% palladium. Standard oxygen, medium strength. Has a good balance of moderate strength, reasonable ductility and excellent weldability. Used in chemical industries because of its outstanding corrosion resistance.

Grade 17 :Unalloyed Titanium plus 0.04% to 0.08% palladium. This alloy is the same as Grade 1, but with palladium added for better corrosion resistance. Grade 17 has optimum ductility and cold formability with useful strength, high-impact toughness, and excellent weldability. Very resistant to crevice corrosion.

Grade 18 :Titanium alloy including 3% aluminium, 2.5% vanadium plus 0.04% to 0.08% palladium.

Grade 19 :Titanium alloy including 3% aluminium, 8% vanadium, 6% chromium, 4% zirconium, 4% molybdenum.

Grade 20 :Titanium alloy including 3% aluminium, 8% vanadium, 6% chromium, 4% zirconium, 4% molybdenum plus 0.04% to 0.08% palladium. Beta – 21S is a metastable beta alloy that offers high specific strength and good formability, and has been designed for improved oxidation resistance, elevated temperature strength, creep resistance and thermal stability, especially in applications above 300°C.

Grade 21 :Titanium alloy including 15% molybdenum, 3% aluminium, 2.7% niobium, 0.25% silicon. Titanium alloy including 6% aluminium, 4% vanadium, and extra low interstitial, ELI23 Alloy 23 is an alpha-beta alloy based on Grade 5, providing improved stress corrosion cracking properties in seawater. Especially suited for thick wall highly stressed parts.

Grade 24 :Titanium alloy including 6% aluminium, 4% vanadium plus 0.04% to 0.08% palladium.

Grade 25 :Titanium alloy including 6% aluminium, 4% vanadium plus 0.3% to 0.8% nickel, 0.04% to 0.08% palladium.

Grade 26 :Unalloyed Titanium plus 0.08% to 0.14% ruthenium. Standard oxygen, medium strength. A corrosion-resistant titanium alloy offering outstanding resistance to general and localised crevice corrosion in a wide range of oxidizing and reducing acid environments including chlorides. Has a good balance of moderate strength, reasonable ductility and excellent weldability. Mechanical properties similar to Grade 2, but improved corrosion resistance. A competitive alternative to 7.

Grade 27 :Unalloyed Titanium plus 0.08% to 0.14% ruthenium. Low oxygen, low strength, and is the same as Grade 1, but with Ruthenium for better corrosion resistance, Grade 27 has optimum ductility and cold formability with useful strength, high-impact toughness, and excellent weldability. Very resistant to crevice corrosion.

Grade 28 :Titanium alloy including 3% aluminium, 2.5% vanadium, plus 0.08% to 0.14% ruthenium. High strength with enhanced corrosion alternative to 9.

Key Characteristics, Advantages of Using Titanium Metals, Titanium Elbow, Ti Fittings

High Strength	Titanium strength/density ratio is better than other metals, components with high strength, good rigity, less weight can be made out of titanium. Titanium is applied for aircrafts engines, frames, skins, fastners and landing gears.
Anti-Corrosion	Compared with stainless steel, titanium alloy’s corrosion is better in moisture laden air, seawater, titanium greatly resists spot corrosion, acid corrosion and stress corrosion. Titanium resists corrosions to alkali, chloride, chlorinated organic sunstances, sulphuric acid, nitric acid.
High-Temperature Resistance	Titanium application temperature’s higher than aluminium alloys. Titanium can work in 450-500℃ for long time. Titanium alloy stil prossesses high strength when working in 150-500℃. Titanium working temperature can be reached to 500℃
Low Temperature Resistance	Titanium alloys still owns its mechanical properties when working in low or super low temperature conditions. Titanium alloys with low-temperature resisitance and extra low interstitial still possess good ductility, therefore, titanium alloy is sort of good low temperature structural material.
Eco-Friendly Metal	Thermal conductivity of titanium is lower than carbon steel or copper, but titanium owns very good corrosion resistance, therefore, titanium thickness can be greatly reduced, also the heat exchange mode is dropwise condensation between titanium and steam. This kind of mode reduces heat transfer resistance, no fouling on titanium surface, which makes titanium thermal conductivity better.
Good Thermal Conductivity	Titanium is non-magnetic metal, it can’t be magnetized in large magnetic field, also titanium is toxic-free and compatibility with blood, there, titanium is applied in medical field.