Gunmetal Bronze Cast Threaded Coupling Description：Gunmetal Bronze Cast Threaded Coupling,Female Bronze Coupling/Cast Bronze Coupling,Lead Free & No lead Bronze with thread connection type.The gunmetal bronze threaded tee as one of the threaded bronze fittings satisfy ASME B16.15 and EN1254-4. The regular material is CC491K and C83600 & C84400. Sand mould used to shape,CNC machines used to threading and the surface is sand blast.Runde bronze fittings' quality is same as yorkshire bronze fittings ,pegler bronze fittings,connex bronze fittings,kembla bronze fittings.Our gunmetal bronze cast threaded coupling know as gunmetal fittings has flange at then edges,The thread meet ISO228 and 7-1 as well as ASME B1.20.1. Production Standard: 1.BS EN1254-4:1998 Copper and copper alloys-Plumbing fittingsPart 4: Fittings combining other end connections with capillary or compression ends2.ANSI B16.15-2006 Cast Bronze Threaded Fittings3.ISO228-1 Pipe Threads Where Pressure-tight joints are not made on the threads4.ISO 7-1(EN10226-1&2 R,Rp,Rc) Pipe threads where presssure-tight joints are made on the threads- Part 1：Dimensions,tolerances and designation5.ASME B1.20.1 Pipe Threads,General Purpose(Inch) Material: Bronze Part:1.CC491K(Cusnzn5pb5-C)(Cu 83-87% Ni≤2% P≤0.1% Pb≤6% Sn 4-6% Zn 4-6% Al≤0.01 Fe≤0.3% S ≤0.1% Sb≤0.25% Si≤0.01%)2.CC499K(Cusnzn5pb2-C)(Cu 84-88% Ni≤0.6% P≤0.04% Pb≤3% Sn 4-6% Zn 4-6% Al≤0.01 As≤0.03% Bi≤0.02% Cd≤0.02% Cr≤0.02% Fe≤0.3% S ≤0.04% Sb≤0.01% Si≤0.01%)3.C83600(CU84-86%,SN4-6%,PB4-6%，AL≤0.005% ,NI≤1% ,ZN4-6%，FE≤0.3%,S≤0.08% ,P≤0.02% ,SI≤0.005)4.C84400(CU78-82%,SN2.3-3.5%，PB6-8%，7-10% ,AL≤0.005% ,FE≤0.4% ,NI+CO≤1%,SB≤0.25%,S≤0.08% ,SI≤0.005%,P≤0.02%)5.C89844(No Lead)(CU83-86%,SN3-5%,PB0%,AL≤0% ,NI0% ,ZN7-10%,FE≤0.3%,S≤0.08%,P≤0.05% ,SI≤0.005,SB0.2%) Application: Industrial or Residential Water and plumbing,drinking supply,cold and hot water supply, heating supply, fire protection,gas supply, industrial petroleum pipeline system etc.Suit Medium:Cold Water, Hot Water, Compressed Air, Gas, Oil Etc.
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