What is the composition of leaded gunmetal of copper, zinc and tin? Copper Alloys Leaded Gunmetal :: Austral Wright Metals Typical Mechanical Properties Typical Physical Properties BS1400 LB2. It is resistant to seawater corrosion and is insensitive to stress corrosion cracking.The alloy also meets additional specifications ASTM B 505 . Modern admiralty gunmetal is composed of 88 percent copper, 10 percent tin, and 2 percent zinc and is used for gears and bearings that are to be subjected to heavy loads and low speeds. Only the "PB" group of bronzes . Leaded Gunmetal LG4 is a leaded Gunmetal Bronze conforming to the requirements of B.S. It has better corrosion resistance and is easily cast. PDF Brass and Bronze Standard Casting Alloys Chart of ... Oiles Bronze Bush Oiles Bronze Washer Oiles Bronze Wear Plate Oiles Guide Slide Solid Cast Bronze Bush JM1 Gun Metal JM3 Tin Bronze JM5 Lead-Tin Bronze JM7 Ni-Al Bronze Oil Sintered Bushing Wrapped Bronze Bush . British Admiralty gunmetal, with its nominal composition 88% copper, 10% tin, and, 2% zinc, was thus developed. LG2 Bronze is one of the most used grades of bronze in industry. RG5 Bronze Bearing | Leaded Gunmetal | CuSn5Pb5Zn5 C93700 Leaded Bronze. up to 260°C), and pressure-tight castings. gunmetal | metallurgy | BritannicaGunmetal - Wikipedia Leaded Gunmetal: Nominal Composition: CuSn5Pb5Zn5: Alloy Type: Cast: Typical Mechanical Properties. NOMINAL COMPOSITION. BS1400 LG4 | CuSn7Pb3Zn3 | Leaded GunmetalPDF Leaded Gunmetal Bronze - Engineering Materials Leaded Gunmetal LG2 is a general purpose leaded gunmetal conforming to the requirements BS1400 - 1985 alloy LG2. Find the most up-to-date version of ASTM B62 at Engineering Learn how to enable JavaScript. Chemical Composition % Element Nominal Copper Cu balance Tin Sn 4.0 - 6.0 Lead Pb 4.0 - 6.0 Zinc Zn 4.0 - 6.0 Nick el Ni 2.0 max Iron Fe 0.30 max Aluminium Al 0.0 1 m ax Antimony Sb 0.20 max Mechanical Properties Ultimate Tensile Strength 245 MPa minimum LG2 /CC491K. The alloy has outstanding machining properties while offering superior corrosion and wear resistance. Nominal Composition Cu 85%, Sn 5%, Zn 5%, Pb 5% Other sizes available on request. However, castings do not have a uniform structure and in the areas free from lead and possibly a smaller grain size some ductility is present. Medium strength, good pressure toughness and is not subject to dezincification and has reasonable corrosion resistance to sea . LEADED GUNMETAL LG2 (BS 1400 1985 LG2) Leaded Bronzes and Gunmetals (also known as Red Brass) offer better machining characteristics than other Bronzes while maintaining a good balance of corrosion resistance and strength. 31) What is the composition of leaded gunmetal of copper, zinc and tin? Bearings, bushes. C90710 Phosphor Bronze. This alloy has higher strength than CC490K and can be used under low mechanical loads and non-critical engineering applications. This alloy is a very useful all-round alloy and has been known for many years as 'ounce' metal and also as 'red brass'. It is a medium strength alloy with good pressure tightness, is resistant to dezincification and offers a reasonable corrosion resistance in sea water and brine. It has medium strength, excellent machining properties, and is suitable for bearings, gears and other components used in relatively light duty applications. . A) Copper 90%, lead 5%, tin 5%. It has excellent machining properties, medium strength, good pressure tightness and is not subject to dezincification. C bronze (gunmetal or leaded gunmetal) is very versatile and is renowned as having. Crimping involves extreme deformation which will not usually be tolerated by the gunmetal without cracking. (917)-564-6763 Customer Support. Although LG2 is often referred to as phosphor bronze, it is in fact a leaded gunmetal. 1400 - 1985 alloy LG4. LB2 continuous cast leaded tin bronze with good plasticity which maximises strength. Sn. It is a medium strength alloy with good pressure tightness, is resistant to dezincification and offers a reasonable corrosion resistance in sea water and brine. CC491K / LG2 is the most commonly used leaded gunmetal offering excellent machining properties and a very good wear resistance. C) Copper 88%, zinc 2%, tin 10%. St. Paul Foundry 954 Minnehaha Avenue West Saint Paul, Minnesota 55104 (651) 488-5567 Fax: (651) 488-0908 Sales: (651) 312-4734 email Leaded Gunmetal. With medium strength and resistance to dezincification, LG2 offers reasonable protection from the effects of Chemical Composition % Copper 84.0-86.0 Zinc 4.0-6.0 Tin 4.0-6.0 Lead 4.0-6.0 Silicon 0.005 max Phosphorous 0.005 max Iron 0.03 max Sulphur 0.08 max Antimony 0.25 max Nickel 1.0 max Aluminium 0.005 max. up to 260°C), and pressure-tight castings. A British cast leaded gunmetal to BS1400 LG4 CuSn7Zn2Pb3, conforming to the European norm BS EN 1982-2008 CC492K. With medium strength and resistance to dezincification, LG2 offers reasonable protection from the effects of Gunmetals and Leaded Bronzes. [Cu / TIN / Zn / Pb] TENSILE STRENGTH. SCB6 Sand Casting Brass. Ni. GRADE BSS / ISS. CC492K. C93200 Leaded Gunmetal. This alloy exhibits good corrosion resistance in atmospheric, carbonic acid and saline water. It also has good corrosion resistance to seawater and brine, making it suitable for pump and valve components. A continuous cast general purpose gun metal conforming to BS EN 1982-2008 CC499K C CuSn5Zn5Pb2-C. It is a leaded Muntz Metal. C90250 Copper Tin. Naval bronze. A well-known British standard, LB2 is a continuous cast leaded tin bronze to BS1400 and has the nominal composition CuSn10Pb10, which also meets BS EN 1982-2008 CC498k. C bronze (gunmetal or leaded gunmetal) is very versatile and is renowned as having. Bronze LG2 (gunmetal), Round Bar - LG2: Leaded Gunmetal Bronze, excellent machinability, excellent wear resistance at normal lubrication, high resistance to seizure and good corrosion resistance. Desired Lead Time; C83600 Leaded Red Brass is the most common red brass, is also called 85 metal or 85-5-5-5. C93500 Leaded Bronze. LG2 /CC491K. my account. The alloy has outstanding machining properties while offering superior corrosion and wear resistance. ASTM B Standard Specification for Composition Bronze or Ounce Metal Castings. Gunmetals and Leaded Bronzes Abstract: The term gunmetal applied today originates from the mid-19th century, when zinc was first added to binary bronze ordnance parts to improve their casting characteristics. It also has good corrosion resistance to seawater and brine, making it suitable for pump and valve components. Description. With over 75 years of experience manufacturing precision machined aluminum and manganese bronze alloys, AW Fraser is a world leader in quality engineered bronze. The substantial lead content gives it excellent machining qualities, it has medium strength, good pressure tightness and it is not subject to dezincification. Typical Uses for Leaded Gunmetal . It is used for gears and bearings. Although LG2 is often referred to as phosphor bronze, it is in fact a leaded gunmetal. Zn and 4% Pb as a 'leaded gunmetal' (LG), despite the fact that this composition does not correspond to the modern definition of a 'leaded gunmetal', which would typically have 5% each of tin, lead and zinc. It has excellent machining properties, medium strength, good pressure tightness and is not subject to dezincification. A continuous cast general purpose gun metal conforming to BS EN 1982-2008 CC499K C CuSn5Zn5Pb2-C. ASTM B Standard Specification for Composition Bronze or Ounce Metal Castings. LG4 BS 1400 Chemical Composition % Copper max Zinc max . Lead Bronze, leaded tin bronze, leaded bronze, ultra bronze, za 27, za-27. Your Account Access account and manage orders; Log in Sign in ASTM B62 UNS C - Bronze / Gunmetal / Leaded Gunmetal. For larger sizes bushes values to be agreed . BS1400 : LB4 is a leaded bronze containing approximately 9% lead and 5% tin. It is used for gears and bearings. p.s.i. It has medium strength, excellent machining properties, and is suitable for bearings, gears and other components used in relatively light duty applications. Abstract: The term gunmetal applied today originates from the mid-19th century, when zinc was first added to binary bronze ordnance parts to improve their casting characteristics. Modified gunmetal contains lead in addition to the zinc; it is typically composed of 86% copper, 9.5% tin, 2.5% lead, and 2% zinc. This alloy has a higher strength than CC490K and CC491K from the additional tin giving superior wear resistance. It withstands atmospheric, steam, and seawater c Lead Screw Nuts, Heavy-Duty Bearings, Pump Pistons General Purpose Bushings, Washers, Non-pressure Applications Bearings & Bushings High Speed, Light Load Bushings Mild Acid Applications High Speed, Heavy-pressure Bushings, Acid-resisting to Sulphite Fluids Low Friction, Moderate Pressure Bushings, 0- 6 ALLOY DESIGNATIONS • BS 1400 LG2 • Cu S n 5Zn 5Pb 5-C • C83600 . Answer is: Leaded Gunmetal LG2 is a general purpose leaded gunmetal conforming to the requirements BS1400 - 1985 alloy LG2. C83600 TYPICALLY USED FOR: This material is used in a variety of applications. p.s.i., and steam pressures up to 100 lbs. St. Paul Foundry 954 Minnehaha Avenue West Saint Paul, Minnesota 55104 (651) 488-5567 Fax: (651) 488-0908 Sales: (651) 312-4734 email LG4 Gunmetal Casting Alloy. CB07 Alloy Chemical Composition (CuSn7Pb15) Cu. The high lead content of this class of bronze, combined with the high Tin content, increases plasticity, maximises strength and aids embeddability. The close relationship to bronze - gunmetal is also referred to as multi-component bronze - characterises the main attributes of this alloy. Perhaps more controversially, we would classify an alloy consisting of 98.5% Cu with 1.5% Sn as a 'bronze' (B), A British continuous cast leaded gunmetal to BS1400 LG2 CuSn5Zn5Pb5, which also meets the European norm BS EN 1982-2008 CC491K. LG2 Bronze is one of the most used grades of bronze in industry. PB2 has a higher tin content than PB1 which gives an excellent resistance to wear. Leaded Gunmetal LG4 is a leaded Gunmetal Bronze conforming to the requirements of B.S. C91700 Copper Tin. p.s.i., and steam pressures up to 100 lbs. p.s.i. Leaded Gunmetal is a cast alloy which is not designed to be cold worked. AW Fraser is a Bronze Foundry, a Brass Foundry and specialist bronze machined components producer. CC491K / LG2 is the most commonly used leaded gunmetal offering excellent machining properties and a very good wear resistance. Gunmetal ingot is a related alloy in which the zinc is replaced by 2% lead; this makes the alloy easier to cast but it has less strength. This alloy is a very useful all-round alloy and has been known for many years as 'ounce' metal and also as 'red brass'. It contains 85% copper and 5% each of tin, lead and zinc. This is a Chinese Specification composition 57-60 copper, 0.8-1.9% lead, balance zinc. Known as a leaded gunmetal bronze, LG2 (CC491K) promotes a variety of attractive performance characteristics. ASTM B62 UNS C - Bronze / Gunmetal / Leaded Gunmetal. CHEMICAL COMPOSITION Elem en t % Presen t Ch ro m iu m ( Cr) 0.00 - 0.10 Co p p er ( Cu ) 83.00 - 87.00 Lea d ( Pb ) 4.00 - 6.00 Zin c ( Zn ) 4.00 - 6.00 N ic kel ( N i) 0.00 - 2.00 Ph o sp h o ro u s ( P) 0.00 - 0.01 Ti n( S ) 4 . Known as a leaded gunmetal bronze, LG2 (CC491K) promotes a variety of attractive performance characteristics. Please note - some imperial sizes may not be available. 1400 - 1985 alloy LG4. Architecture: Ornamental Fixtures Building: Heating Equipment, Lightning Protection, Trowels for Cement Working, Cooling Equipment Electrical: Switches, Electrical Equipment, Electrical Hardware Fasteners: Large Hold Down Screws Industrial: Pressure Blocks for Steel Industry, Pump Parts, Transducer Housings, Valve Bodies for the Water Meter Industry, Valves . U.S. government bronze specification G C90500 is composed of 88% copper, 10% tin, and 2% zinc, as is British Admiralty gunmetal. Applications include bearings, for backings only and general application, pressure castings (for normal temperatures up to 200 lbs. D) Copper 85%, lead 5%, zinc 5%, tin 5%. gunmetal, variety of bronze, formerly used for ordnance. Pb. C92410 Leaded Gunmetal. CC499K. Typical uses for red brass are for low-pressure valves, pump housings, impellers and fittings. The quality of copper, together with the hygiene of tin, the easier processing of lead and the low proportion of the reactive zinc has led to gunmetal being used in many areas in life. British Admiralty gunmetal, with its nominal composition 88% copper, 10% tin, and, 2% zinc, was thus developed. [ Phosphor Bronze/ Gun Metal / Aluminum Bronze / Manganese Bronze / HTB-3 / Lead Bronze] GRADE. B) Copper 94%, lead 4%, tin 2%. Chemical Composition of Leaded Gunmetal % Maximum unless shown as range or minimum (1) In determining Copper minimum, Copper may be calculated as Copper + Nickel (2) Nickel value includes Cobalt (3) For continuous castings, phosphorus shall be 1.5% maximum Note: Copper + sum of named elements, 99.3% minimum Applicable Specifications Typical applications. CuSn5ZnPb5 Tin bronze alloy bearing, red bronze leaded gunmetal bushings C83600 and the CuSn5ZnPb (Rg5).Bronze Bearing made to order from china,It offers a good machinability and offers good resistance to corrosion.For bronze brass bearing & graphite bushing with an exterior diameter of ≤ 400 mm. Tensile Strength (N/mm²) 270: Proof/Yield Strength (N/mm²) 112: Elongation (%) 36: Hardness Brinell: 70: Impact Izod J20°C: 26: Typical Physical Properties. This alloy exhibits good corrosion resistance in atmospheric, carbonic acid and saline water. CuSn7Zn2Pb3-C. C93400-Leaded phosphor . Modified gunmetal contains lead in addition to the zinc; it is typically composed of 86% copper, 9.5% tin, 2.5% lead, and 2% zinc. Applications include bearings, for backings only and general application, pressure castings (for normal temperatures up to 200 lbs. Excellent machining properties, very good wear resistance and medium to good corrosion resistance. A more suitable alloy for this application would be the gunmetal LG2 (CC491K) 85%copper, 5% tin, 5% zinc, 5% lead. We produce brass extrusions and cusn12Ni and lg2 bronze for businesses across the globe. LG2 - Leaded Gunmetal Typical Analysis (Ave. values %) Cu Pb Sn Zn P Ni Al Fe 85.0 5.0 5.0 5.0 0.025 1.0 0.002 0.30 NEAREST STANDARD AS BS ASTM SAE 83600 LG2 83600 40 DESCRIPTION LG2 has Excellent machining properties. C90810 Phosphor Bronze. Find the most up-to-date version of ASTM B62 at Engineering Low Mechanical loads and non-critical Engineering applications 5 % enable JavaScript leaded gunmetal produce brass and. - Casting-china.org < /a > LG2 /CC491K bronze with good plasticity which maximises strength Sn 5 Other... 1400 Chemical Composition % Copper max zinc max is insensitive to stress corrosion alloy! Of tin, lead 5 %, tin 5 % excellent resistance to seawater and brine, making it for! 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