Reliable Pipes & Tubes Limited Girgaon, Mumbai, Maharashtra

itanium and titanium alloys are attractive structural materials due to their high strength, low density, and excellent corrosion resistance. However, even though titanium is the fourth most abundant element in the Earth’s crust, the cost of titanium is high due to its high melting point and extreme reactivity. The high cost includes both the mill operations (extraction, ingot melting, and primary working) as well as many of the secondary operations conducted by the user. The advantages of titanium include:   The high strength-to-weight ratio of titanium alloys allows them to replace steel in many applications requiring high strength and fracture toughness. With a density of 4.5 g/cm3 (0.16 lb/in.3), titanium alloys are only about ½ as heavy as steel and nickel-base superalloys, yielding excellent strength-to-weight ratios. Titanium alloys have much better fatigue strength than the other lightweight alloys, such as those of aluminum and magnesium. Titanium alloys can operate at elevated temperatures, as high as 370 to 590 °C (700 to 1100 °F) depending on the specific alloy. The corrosion resistance of titanium alloys is superior to both steel and aluminum alloys. Properties Titanium alloys are known for their combination of relatively low densities, high strengths, and excellent corrosion resistance. Yield strengths vary from 480 MPa (70 ksi) for some grades of commercial titanium to approximately 1100 MPa (160 ksi) for structural alloys. In addition to their static strength advantage, titanium alloys have much better fatigue strength than the other lightweight alloys, such as those of aluminum and magnesium. Titanium alloys can be used at moderately elevated temperatures, as high as 370 to 595 °C (700 to 1100 °F) depending on the specific alloy. In addition, some alpha-titanium alloys, especially the low interstitial grades, can also be used in cryogenic applications because they do not exhibit a ductile-to-brittle transition.   An important property of titanium alloys is corrosion resistance. When exposed to air, titanium immediately forms an oxide layer a few nanometers thick that protects the underlying metal from further oxidation. If this oxide layer is damaged, it re-forms in the presence of even trace amounts of oxygen or water. The oxide is strongly adherent and stable over a wide pH range of corrosive solutions as long as moisture and oxygen are present to maintain the protective oxide layer.   Thermal and Electrical Properties. Titanium and its alloys have very low thermal conductivities and high electrical resistivities.   Mechanical Properties. Commercially pure grades of titanium have an ultimate tensile strength of approximately 410 MPa (60 ksi), equal to that of common low-alloy steels, but are 45% lighter. Although titanium is approximately 60% more dense than aluminum, it is about twice as strong as common aluminum structural alloys. Certain alloys can be heat treated to achieve tensile strengths as high as 1400 MPa (200 ksi). Applications As a result of their high strength-to-density, good corrosion resistance, resistance to fatigue and crack growth, and their ability to withstand moderately high temperatures without creep, titanium alloys are used extensively in aerospace for both airframe and engine components. In aircraft, titanium alloys are used for highly loaded structural components such as bulkheads and landing gears. In commercial passenger aircraft engines, the fan, the low-pressure compressor, and approximately ⅔ of the high-pressure compressor are made from titanium alloys. Other important applications include firewalls, exhaust ducts, hydraulic tubing, and armor plating. Due to its high cost, titanium alloys are more widely used in military aircraft than commercial aircraft. For example, titanium alloys comprise approximately 42% of the structural weight of the new F-22 fighter aircraft, while the Boeing 757 contains only 5% Ti.   The excellent corrosion resistance of titanium makes it a valuable metal in the chemical processing and petroleum industries. Typical applications include pipe, reaction vessels, heat exchangers (Fig. 4), filters, and valves. Titanium is used in the pulp and paper industries, where it is exposed to corrosive sodium hypochlorite or wet chlorine gases. Due to excellent resistance to saltwater, titanium is used for ship propeller shafts and service water systems. The former Soviet Union actually developed large, welded titanium-hulled submarines.   A growing use of titanium is in medical applications. Titanium is biocompatible with the human body (nontoxic and not rejected by the body). It is used for surgical implements and implants such as hip balls and sockets and heart valves. The lower elastic modulus of titanium more closely matches the properties of human bone than do stainless steel alloys, which results in less bone degradation over long periods of time. Titanium is also used for dental implants to replace missing teeth.   Titanium is used in many sporting goods, including golf club heads, tennis rackets, bicycle frames, skis, scuba gas cylinders, and lacrosse sticks. Approximately 95% of titanium ore is refined into titanium dioxide (TiO2) and used as white fade-resistant pigment in paints, paper, toothpaste, and plastics.   Grade 1 Unalloyed titanium, low oxygen. Grade 2 Unalloyed titanium, standard oxygen. Grade 2H Unalloyed titanium (Grade 2 with 58 ksi minimum UTS). Grade 3 Unalloyed titanium, medium oxygen. Grades 1-4 are unalloyed and considered commercially pure or "CP". Generally the tensile and yield strength goes up with grade number for these "pure" grades. The difference in their physical properties is primarily due to the quantity of interstitial elements. They are used for corrosion resistance applications where cost, ease of fabrication, and welding are important. Grade 5, also known as Ti6Al4V, Ti-6Al-4V or Ti 6-4, is the most commonly used alloy. It has a chemical composition of 6% aluminium, 4% vanadium, 0.25% (maximum) iron, 0.2% (maximum) oxygen, and the remainder titanium. It is significantly stronger than commercially pure titanium while having the same stiffness and thermal properties (excluding thermal conductivity, which is about 60% lower in Grade 5 Ti than in CP Ti). Among its many advantages, it is heat treatable. This grade is an excellent combination of strength, corrosion resistance, weld and fabricability. Generally, Ti-6Al-4V is used in applications up to 400 degrees Celsius. It has a density of roughly 4420 kg/m3, Young's modulus of 110 GPa, and tensile strength of 1000 MPa. By comparison, annealed type 316 stainless steel has a density of 8000 kg/m3, modulus of 193 GPa, and tensile strength of only 570 MPa. And tempered 6061 aluminium alloy has 2700 kg/m3, 69 GPa, and 310 MPa, respectively. Grade 6 contains 5% aluminium and 2.5% tin. It is also known as Ti-5Al-2.5Sn. This alloy is used in airframes and jet engines due to its good weldability, stability and strength at elevated temperatures. Grade 7 contains 0.12 to 0.25% palladium. This grade is similar to Grade 2. The small quantity of palladium added gives it enhanced crevice corrosion resistance at low temperatures and high pH. Grade 7H is identical to Grade 7 with enhanced corrosion resistance. Grade 9 contains 3.0% aluminium and 2.5% vanadium. This grade is a compromise between the ease of welding and manufacturing of the "pure" grades and the high strength of Grade 5. It is commonly used in aircraft tubing for hydraulics and in athletic equipment. Grade 11 contains 0.12 to 0.25% palladium. This grade has enhanced corrosion resistance. Grade 12 contains 0.3% molybdenum and 0.8% nickel. Grades 13, 14, and 15 all contain 0.5% nickel and 0.05%. Grade 16 contains 0.04 to 0.08% palladium. This grade has enhanced corrosion resistance. Grade 16H contains 0.04 to 0.08% palladium. Grade 17 contains 0.04 to 0.08% palladium. This grade has enhanced corrosion resistance. Grade 18 contains 3% aluminium, 2.5% vanadium and 0.04 to 0.08% palladium. This grade is identical to Grade 9 in terms of mechanical characteristics. The added palladium gives it increased corrosion resistance. Grade 19 contains 3% aluminium, 8% vanadium, 6% chromium, 4% zirconium, and 4% molybdenum. Grade 20 contains 3% aluminium, 8% vanadium, 6% chromium, 4% zirconium, 4% molybdenum and 0.04% to 0.08% palladium. Grade 21 contains 15% molybdenum, 3% aluminium, 2.7% niobium, and 0.25% silicon. Grade 23 contains 6% aluminium, 4% vanadium, 0.13% (maximum) Oxygen. Improved ductility and fracture toughness with some reduction in strength. Grade 24 contains 6% aluminium, 4% vanadium and 0.04% to 0.08% palladium. Grade 25 contains 6% aluminium, 4% vanadium and 0.3% to 0.8% nickel and 0.04% to 0.08% palladium. Grades 26, 26H, and 27 all contain 0.08 to 0.14% ruthenium. Grade 28 contains 3% aluminium, 2.5% vanadium and 0.08 to 0.14% ruthenium. Grade 29 contains 6% aluminium, 4% vanadium and 0.08 to 0.14% ruthenium. Grades 30 and 31 contain 0.3% cobalt and 0.05% palladium. Grade 32 contains 5% aluminium, 1% tin, 1% zirconium, 1% vanadium, and 0.8% molybdenum. Grades 33 and 34 contain 0.4% nickel, 0.015% palladium, 0.025% ruthenium, and 0.15% chromium . Grade 35 contains 4.5% aluminium, 2% molybdenum, 1.6% vanadium, 0.5% iron, and 0.3% silicon. Grade 36 contains 45% niobium. Grade 37 contains 1.5% aluminium. Grade 38 contains 4% aluminium, 2.5% vanadium, and 1.5% iron. This grade was developed in the 1990s for use as an armor plating. The iron reduces the amount of Vanadium needed as a beta stabilizer. Its mechanical properties are very similar to Grade 5, but has good cold workability similar to grade 9.

Stainless Steel Pipes & Tubes are purely made of steel. There are used in many industries like chemical, petroleum, textiles etc. They are highly resistant to corrosion. There pipes are made by combining chromium nickel and carbon. As the demand is increasing day by day we are providing high quality materials. Stainless steel is strong and durable. It has a number of useful properties like that help to make it hard and flexible in use. Stainless steel tubes have good strength and good resistance to corrosion and oxidation at respected temperatures. Stainless steels tubes are used at temperatures up to 1700° F. Reliable pipes & Tubes Ltd is one of the leading masters in Stocking, Importing & Exporting of Stainless Steel ERW, EFW and Stainless Steel Seamless Pipes and Stainless Steel Seamless tubes. Our supply chain includes its European, Korean , Taiwan & many other Import sources who are highly Renowned and Professional manufacturers acquiring High Level of industry expertise and latest technologies. Worldwide demand for stainless steel is increasing at a rate of about 5% per annum. Annual consumption is now well over 20 million tones and is rasing in areas such as the construction industry and household appliances. New uses are being continuously found for the attractive appearance, corrosion resistance, low maintenance and strength of stainless steel. Stainless steel is more expensive than standard grades of steel but it has greater resistance to corrosion, needs low maintenance and has no need for painting or other protective coatings. These factors mean stainless steel can be more economically viable once service life and life-cycle costs are considered. The welded pipe is purely made of stainless steel and is used in various industrial applications. These pipes will be available in different sizes based on the requirements of the clients. This product is used in petro chemical & shore industries. It is tested for its best & guarantee in industries. This has made Reliable one of the Core & Complete Piping and Tubing solution.

The registered trademark name, Monel, is applied as the prefix name to several corrosion resistant alloys produced by Special Metals Corporation. These alloys are nickel-based and exhibit traits that include high resistance to atmospheric corrosion, salt water, and various acid and alkaline solutions. Alloys of identical chemical and mechanical properties are available from other manufacturers and offer excellent alternatives to the various Monel® brand alloys. The corrosion-resistant alloy is widely used in the marine, oil and chemical processing industries   Characteristics of Monel Good resistance to acids such as hydrofluoric and sulfuric acid Highly resistant to alkalis Malleable Highly corrosion resistant Stronger than steel Applications of Monel Pump shafts, oil-well tools, instruments, doctor blades and scrapers, springs, valve trim, fasteners, marine propeller shafts Marine components Chemical and hydrocarbon processing equipment Valves, pumps, shafts, fittings, heat exchangers Monel Avalibility We supply Monel400, K500, R-405. Most of these grades are availab

The registered trademark name, Inconel, is applied as the prefix name to more than twenty different highly corrosion resistant high temperature strength metal alloys produced by Special Metals Corporation. These Inconel alloys or superalloys are nickel-based alloys that exhibit traits such as high resistance to corrosion, oxidation, carburization, pitting, crevice, corrosion cracking, and high temperature strength. Often, Inconel is referred to as “Inco”. Alloys of identical chemical and mechanical properties are available from other manufacturers and offer excellent alternatives to the various Inconel® brand alloys. The corrosion-resistant superalloys are widely used in extreme environments where tremendous heat and corrosion resistance is paramount to the integrity of the end product. Chemical processing, nuclear, petrochemical, aerospace and marine industries widely use these superalloys.   Characteristics of Inconel Good resistance to acids, such as sulfuric, phosphoric, nitric, and hydrochloric Almost completely free from chloride induced stress corrosion cracking Excellent mechanical properties at both extremely low and extremely high temperatures Outstanding resistance to pitting, crevice corrosion and intercrystalline corrosion High resistance to oxidation at elevated temperatures Applications of Inconel Chemical and petrochemical processing Components where exposure to high mechanical stress and sea water are required Flare stacks on offshore oil platforms Gas turbines, rocket motors/engines, and space craft Pollution control equipment Nuclear reactors Superalloys aka high performance alloys have become the steel of choice for corrosion resistance and versatility.

Copper-nickel alloys (often referred to as cupro-nickels) offer moderate to high strength and excellent resistance to various waters, including seawater and form a protective surface film in such conditions. In addition they provide good anti-fouling properties and weldability. The precipitation hardenable copper nickels (DEF STAN 02-835 and ULTIBRON™-NB) possess high strength and are used as an alternative to the 90/10 and 70/30 alloys and other copper alloys such as nickel aluminium bronze in marine applications. Other useful attributes include low magnetic permeability, imperviousness to hydrogen embrittlement, no loss of impact strength down to minus 196°C and good jet impingement resistance. Applications for 90/10 and 70/30 alloys mainly involve tubes and tube plates in heat exchangers, including desalination and seawater piping systems. 70/30 alloy is also used for hose couplings, mechanical seals and pump shafts. Applications for the high strength cupro-nickels are varied and cover subsea bolting in Oil & Gas to hydraulic connectors and valve stems. Usage in Naval vessels is widespread, for example, for bolting, propeller shafts, sonar components and weapons handling equipment. Copper-nickel alloys are also finding new applications replacing beryllium-copper alloys due to environmental difficulties in their manufacture.   Reliable Pipes & Tubes Limited maintains a broad inventory of Copper Nickel, also known as cupro nickel, C70600 (90/10) and C71500 (70/30) in pipe form. Our inventory of ASTM B466/ASME SB466 is composed of C706 in SCH 40 & 80, along with Class 200, Cupro Nickel Tubes 95/5, 90/10 & 70/30   The addition of nickel to copper improves strength and corrosion resistance but good ductility is retained. Copper-nickel alloys have excellent resistance to marine corrosion and biofouling. The two main alloys are 90/10 and 70/30. The 70/30 is stronger and has greater resistance to sea water flow; but the 90/10 will provide good service for most applications and being less expensive tends to be more widely used. Both alloys contain small but important additions of iron and manganese which have been chosen to provide the best combination of resistance to flowing sea water and to overall corrosion. Copper-nickel alloys are widely used for marine applications due to their excellent resistance to seawater corrosion, high inherent resistance to biofouling and good fabricability. They have provided reliable service for several decades whilst offering effective solutions to todays technological challenges.   Applications Sea water pipework Offshore fire water systems Heat exchangers and condensers Sheathing of legs and risers on offshore platforms and boat hulls Hydraulic lines Fish cages for aquaculture Desalination units.