Our range of Copper Sulphur Rods is used in general engineering & semi-fabricated products. These copper alloy rods are manufactured using high grade material and are known for hardness, high tensile value and high conductivity. Our copper alloys range finds applications in electrical appliances in producing cable wires & transportation industry for automotive and truck radiators, air-conditioning systems, hydraulic lines and more.

Some of the detailed description of our Copper Alloys range is mentioned below:

Phosphor Bronze offered by us is alloys of copper where tin is the main alloying element with phosphorus added primarily as deoxidant. Alloys containing up to about 9% tin are wrought and alloys containing from about 10-12% tin are used as-cast. These copper alloys are strong, corrosion resistant alloys with vast usage in marine environments and electrical & electronic engineering where their especially at the higher cast level. In addition, these copper alloys impart good wear resistance for traditional use in bearing components. Our range conforms to the BS2870 /BS2875: PB103 - BS2874: PB102 -NES838 BS2874: PB104/ BS B24 (DTD265A*) (Colbronze) - BS1400: PB1 ASTM B139: C54400 (Colphos 90) standards.

Chemical Properties: Phosphor Bronze (Copper Alloys)

• Cu: remainder

• Sn: 4.00 - 5.50

• Pb: 0.02 max

• Ni: 0.30 max

• Fe: 0.10 max

• Zn: 0.30 max

• P: 0.02 - 0.40

• Total Impurities: 0.50 max

We are recognized amongst the trusted manufacturers of a wide range of Naval Brass Rods. These copper alloys rods are manufactured using naval brass or C46400, which is a high strength, corrosion resistant alloy containing nominally 60% copper, .75% tin and 39.25% zinc. Naval Brass Rods are widely used in marine construction where a strong, corrosive resistant and hard material is required.

Chemical Properties : Arsenic Copper Rod

• Sn: 0.01 max

• Pb: 0.01 max

• Ni: 0.15 max

• Fe: 0.03 max

• As: 0.30 - 0.50

• P: 0.013 - 0.05

• Cu + Ag: 99.20 min

• Sb: 0.01 max

• Bi: 0.003 max

• Se + Te: 0.02 max

BS2874: NS101: BS2870: NS104 / NS106 - Silver speed - XL

We deal in offering our clients a wide range of Nickel Silver Rod that is manufactured using high grade material. Nickel Silver is a copper alloy with additions of zinc and nickel. Their special blend of mechanical properties, physical properties and performance characteristics depend upon the relative proportions of the three elements. Their attractive colour varies from pale gold to silvery white. These copper alloys are termed nickel silver because they contain nickel and are, by and large, silvery in appearance. But the term is somewhat misleading since they are neither nickel-based nor do they contain silver! They are best considered as brasses to which nickel is added, primarily to improve tarnish resistance, oxidation resistance and general mechanical performance characteristics.

Nickel Silvers are capable of providing a unique combination of strength, high modulus spring properties, corrosion and oxidation resistance, anti-galling properties, excellent cryogenic performance and numerous other attributes combined with ease of forming, machining plating and joining.

Silver speed-XL Extra Free-Machining Rod:

This is a free-machining alloy with a machine ability almost the same as free-cutting brass. It is highly recommended for the production of intricate components by complex machining operations. This grade is stocked exclusively by Columbia and as with all standard grades, will be specified in the new European Standards for copper based alloys. It has basically the same application and performance characteristics as NS101, but with an invaluable increase of around 20% in machine ability.

Nominal Composition:

NS 101 45% Copper 10% Nickel 2% Lead Remainder Zinc NS104 63% Copper 12% Nickel 0.2% Manganese Remainder Zinc NS 106 63% Copper 18% Nickel 0.3% Manganese Remainder Zinc Silver speed 49% Copper 7% Nickel 3% Lead 2% Manganese Remainder Zinc

Mechanical Properties: (Specification Minimum all sizes)

NS 101 UTS 460N/mm: Elongation 8% NS 104 Hardness 130 HV NS 106 Hardness 110 HV max Silver speed UTS 500N/mm2: PS 400N/mm2: Elongation 18%: Hardness 180 HV