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Products 2 INVAR 36 ASTM F-1684, UNS 93603, UNS K93050 Alloy 36 is a 36% nickel-iron alloy that exhibits a near zero rate of thermal expansion which is roughly one tenth the expansion rate of carbon steel at temperatures from around -100°C up to 200°C. Along with this very low coefficient of linear thermal expansion over a broad range of temperatures, up to around 200 °C, Invar 36 retains superior strength and toughness at cryogenic temperatures, making it suitable for a variety of low temperature applications. ALLOY 42 ASTM F30, UNS K94100 Alloy 42 is a nickel-iron controlled-expansion alloy containing 42% nickel, balance Iron. It has a low and nominally constant coefficient of thermal expansion from room temperature to about 570°F (300°C). Alloy 42 is mainly used for semiconductor lead frames in integrated circuits, stencil/etching, and used in telecommunications, aircraft industry, medical, electronics and automotive industries. COPPER (OFE) C110 / C10100 Oxygen-free high thermal conductivity (OFHC) copper is widely used in cryogenics. The method of producing OFHC copper ensures extra high grade of metal with a copper content of 99.99%. Characteristics are high ductility, high electrical and thermal conductivity, high impact strength, good creep resistance, ease of welding, and low relative volatility under high vacuum For industrial applications, oxygen-free copper is valued more for its chemical purity than its electrical conductivity. OF/OFE grade copper is used in plasma deposition (sputtering) processes, including the manufacture of semiconductors and superconductor components, as well as in high vacuum devices such as particle accelerators. In any of these applications, the release of oxygen or other impurities can cause undesirable chemical reactions with other materials in the local environment. ALLOY 625 Alloy 625 is a nonmagnetic, corrosion – and oxidation-resistant, nickelbased alloy. Its outstanding strength and toughness in the temperature range cryogenic to 2000°F (1093°C) are derived primarily from the solid solution effects of the refractory metals, columbium and molybdenum, in a nickel-chromium matrix. The alloy has excellent fatigue strength and stress-corrosion cracking resistance to chloride ions. Some typical applications for alloy 625 have included heat shields, furnace hardware, gas turbine engine ducting, combustion liners and spray bars, chemical plant hardware, and special seawater applications. ALLOY 718 Alloy 718 is a precipitation hardenable nickel-based alloy designed to display exceptionally high yield, tensile and creep-rupture properties at temperatures up to 1300°F. The sluggish age-hardening response of alloy 718 permits annealing and welding without spontaneous hardening during heating and cooling. This alloy has excellent weldability when compared to the nickel-base superalloys hardened by aluminium and titanium. This alloy has been used for jet engine and high-speed airframe parts such as wheels, buckets, spacers, and high temperature bolts and fasteners. MOLYBDENUM Molybdenum can meet the most exacting requirements. With its unique mechanical and chemical properties molybdenum has a very high melting point, a low coefficient of thermal expansion and a high level of thermal conductivity, it is used in many different industries. Molybdenum is used to produce ribbons and wires for the lighting industry, semiconductor base plates for power electronics, glass melting electrodes, hot zones for high-temperature furnaces and sputtering targets for coating solar cells and flat screens. TITANIUM Titanium has a low density and is a strong, lustrous, corrosion-resistant (including sea water, aqua regia and chlorine. Titanium can be alloyed with iron, aluminium, vanadium, molybdenum, among other elements, to produce strong lightweight alloys for aerospace (jet engines, missiles, and spacecraft), military, industrial process (chemicals and petrochemicals, desalination plants, pulp, and paper), automotive, agri-food, medical prostheses, orthopaedic implants, dental and endodontic instruments and files, dental implants, sporting goods, jewellery, mobile phones, and other applications. 17-4 PH STAINLESS STEEL 17-4 PH Stainless Steel, UNS S17400, AMS 5643, ASTM A564, and ASTM A693 Grade 630.17-4 PH is a precipitation hardening martensitic stainless steel. Typical 17-4 PH usage is seen in applications requiring high strength and a modest level of corrosion resistance. Strength and toughness desired can be manipulated by temperate range in the heat treatment process.17-4 PH stainless steel can be used for a variety of applications including: pump shafts, oil path, mechanical seals, and within the aerospace industry. Its composition is carbon, chromium, Columbian + tantalum, copper, manganese, nickel, phosphorous, silicon, and sulphur. SUPER DUPLEX Super Duplex stainless steels have a mixed micro structure of austenite and ferrite, the aim usually being to produce a 50/50 mix, although in commercial alloys the ratio may be 40/60. Duplex stainless steels have roughly twice the strength compared to austenitic stainless steels and also improved resistance to localized corrosion, particularly pitting, crevice corrosion and stress corrosion cracking. They are characterized by high chromium (19–32%) and molybdenum (up to 5%) and lower nickel contents than austenitic stainless steels. PHOSPHOR BRONZE Phosphor bronze (sometimes sold with the shorter name Phos Bronze) is an alloy of copper with 3.5 to 10% of tin and a significant phosphorus content of up to 1%. The phosphorus is added as deoxidising agent during melting. These alloys are notable for their toughness, strength, low coefficient of friction, and fine grain. The phosphorus also improves the fluidity of the molten metal and thereby improves the castability, and improves mechanical properties by cleaning up the boundaries. Phosphor bronze is used for springs, bolts and various other items used in situations where resistance to fatigue, wear and chemical corrosion are required (e.g., a ship’s propellers in a marine environment). The alloy is also used in some dental bridges. ALUMINIUM BRONZE Aluminium is the main alloying metal added to copper, in contrast to standard bronze (copper and tin) or brass (copper and zinc) . A variety of aluminium bronzes of differing compositions have found industrial use, with most ranging from 5% to 11% aluminium by weight, the remaining mass being copper; other alloying agents such as iron, nickel, manganese, and silicon are also sometimes added to aluminium bronzes. General sea waterrelated service, Water supply, Oil and petrochemical industries (i.e. tools for use in non-sparking environments), specialized anti-corrosive applications. ALUMINIUM Aluminium alloys are alloys in which aluminium (Al) is the predominant metal. The typical alloying elements are copper, magnesium, manganese, silicon and zinc. There are two principal classifications, namely casting alloys and wrought alloys, both of which are further subdivided into the categories heat-treatable and non-heat-treatable. About 85% of aluminium is used for wrought products, for example rolled plate, foils and extrusions. Cast aluminium alloys yield cost-effective products due to the low melting point, although they generally have lower tensile strengths than wrought alloys. The most important cast aluminium alloy system is Al–Si, where the high levels of silicon (4.0–13%) contribute to give good casting characteristics. Aluminium alloys are widely used in engineering structures and components where light weight or corrosion resistance is required.