Product Description
IS 291 GRADE Naval Brass Rod
We fabricate a finest range of Naval Brass, which are renowned for their high strength, rust proof and durability features. Naval brass is a copper alloy containing 60% copper, 75% tin and around 39.25% zinc. These are made up of high-grade raw material and can be availed in the form of sheet, plate, rods and circle. Our range of naval brass is broadly used in marine and construction industry.
Specifics:
Specifications:
| Rod Brass | ASTM B135 C 23000 BS 2870 CZ 102 JIS H3300 C 2300 |
| Naval Brass | IS291 Grade I or II BS 2874 CZ 112 JIS 3250 C4622 ASTM C48200 |
| Chemical Requirements | Garde I | Grade II |
| Copper | 61.0 - 64.0% | 59.0 - 62.0% |
| Lead | 0.20% max | 0.50 to 1.0% |
| Tin | 1.0 to 1.50% | 0.50 to 1.0% |
| Iron | 0.10% max | - |
| Other Imp. | 0.20% max | 0.20% max |
| Zinc | Remainder | Remainder |
| Physical Properties |
| Condition | Size | T.S. 2 Kg/mm2 | EL% Min | T.S. 2 Kg/mm2 | EL% Min |
| Half-Hard (HB) | Upto 12.5 12.5 to 50 50 to 100 | 40 min 38.5 min 35 min | 18% 18% 18% | 40 min 40 min 40 min | 15% 15% 15% |
| Fabrication Properties |
| Capacity for being | | |
| Cold Worked | Fair | Poor |
| Hot Worked | Excellent | Good |
| Machinability Rating | 30% | 50% |
| Forgeability Rating | 90% | 90% |
| Silver Alloy Brazing | Excellent | Excellent |
| Soft Soldering | Excellent | Excellent |
| Oxyacetylene Welding | Good | Not Suitable |
| Uses |
| Gr I : Condenser Components, Propeller Shaft, Marine hardware where bending is required. |
| Gr II : Marine Hardware, Screw Machine, Valve Stems and Components for Naval use. |
Exceptional Corrosion Resistance for Marine UseIS 291 GRADE Naval Brass Rods excel in harsh marine conditions due to their unique alloy composition. The addition of tin and optimized copper-zinc balance ensures superior resistance to saltwater and various corrosive elements. This makes them highly reliable for shipbuilding and other marine applications, where durability is paramount and maintenance costs can be significantly reduced.
Versatile Applications and Superior MachinabilityThese rods are ideal for diverse applications, including valves, ship hardware, and electrical fittings. The half-hard temper facilitates precise machining while maintaining strength, making it a preferred material among manufacturers. With a polished finish and good electrical conductivity (1520% IACS), it supports both functional and aesthetic requirements in industrial and decorative contexts.
FAQs of IS 291 GRADE Naval Brass Rod:
Q: What are the key benefits of using IS 291 GRADE Naval Brass Rod in marine environments?
A: Its excellent corrosion resistance, derived from a balanced copper-zinc-tin alloy, makes it ideal for withstanding harsh marine conditions, reducing maintenance, and prolonging service life in shipbuilding and related applications.
Q: How can I select the appropriate size and shape for my application?
A: IS 291 GRADE Naval Brass Rods are available in round, hex, and square profiles, with diameters ranging from 10 mm to 80 mm and a standard length of 3 meters. The best choice depends on your specific engineering or architectural requirements.
Q: When should this brass rod be preferred over other alloys?
A: Choose IS 291 GRADE Naval Brass Rod when your project demands excellent corrosion resistance, moderate electrical conductivity, high strength, and reliable machinability, especially for marine and electrical uses.
Q: What is the typical process for installing or machining these rods?
A: Owing to their half-hard temper, these rods can be cut, drilled, turned, and polished using standard metalworking tools. It is advised to follow industry best practices to maintain integrity and finish quality.
Q: Where are IS 291 GRADE Naval Brass Rods commonly used?
A: They are widely applied in marine shipbuilding, electrical fittings, valve manufacturing, and marine hardware due to their durable, anti-corrosive properties and attractive finish.
Q: What makes the finish and color of these rods stand out?
A: The bright or polished finish along with the natural golden yellow hue of the alloy provides both aesthetic appeal and additional resistance to environmental factors.