Phosphor Bronze Round Bar is a specialized copper-tin alloy enhanced with phosphorus to improve strength, wear resistance, and corrosion resistance. It is widely used in mechanical, electrical, and industrial applications where durability and reliability are critical. Riddhi Siddhi Impex is a leading manufacturer and domestic supplier of high-quality Phosphor Bronze Round Bars in India, ensuring premium-grade products that meet international standards...
The typical composition of phosphor bronze includes about 90% copper, 8–10% tin, and 0.01–0.35% phosphorus. This alloying combination provides excellent mechanical properties, superior fatigue resistance, and long-term dimensional stability, making it suitable for precision components in critical applications.
Riddhi Siddhi Impex supplies Phosphor Bronze Round Bars across India’s major industrial and commercial hubs such as Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru (Mysore), Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, Akola, and industrial zones like Vilayat, Somnath, Dahej, Narmada, Ankleshwar, Navsari, Valsad, Rajpipla...
The bars also offer excellent wear resistance and low friction characteristics, which are highly valued in bearing components, gears, and bushings. Their mechanical robustness ensures that parts made from phosphor bronze maintain performance under repeated stress and motion..
Riddhi Siddhi Impex provides Phosphor Bronze Round Bars in a variety of diameters, lengths, and custom forms such as round, square, and hex bars. Their extensive stock and efficient delivery network allow manufacturers to maintain uninterrupted production schedules across India..
| Property | Details |
|---|---|
| Product Name | Phosphor Bronze Round Bar |
| Material | Copper-Tin-Phosphorus Alloy |
| Grade | C93200 / C95400 / IS 318 Phosphor Bronze |
| Standard | ASTM B124 / B139 / IS 318 / EN 1982 |
| Diameter Range | 6 mm to 300 mm |
| Length | 1000 mm to 6000 mm (Custom Available) |
| Form | Round, Square, Hex |
| Finish | Bright, Polished, Smooth Turned |
| Element | Content (%) |
|---|---|
| Copper (Cu) | 88–90% |
| Tin (Sn) | 8–10% |
| Phosphorus (P) | 0.01–0.35% |
| Lead (Pb) | 0.05% max |
| Other Impurities | 0.05% max |
| Property | Value |
|---|---|
| Tensile Strength | 350–450 MPa |
| Yield Strength | 120–180 MPa |
| Elongation | 15–25% |
| Hardness | 85–105 HB |
| Density | 8.8–8.9 g/cm³ |
| Diameter (mm) | Diameter (Inches) | Length (mm) |
|---|---|---|
| 6 | 1/4" | 1000–6000 |
| 12 | 1/2" | 1000–6000 |
| 20 | 3/4" | 1000–6000 |
| 25 | 1" | 1000–6000 |
| 40 | 1.5" | 1000–6000 |
| 50 | 2" | 1000–6000 |
| Country/Standard | Equivalent Grade |
|---|---|
| USA | ASTM C93200 / C95400 |
| Europe | EN 1982 CB102 / CB491 |
| India | IS 318 Phosphor Bronze |
| UK | BS 1400 CW451C |
| Standard | Description |
|---|---|
| ASTM B124 / B139 | Standard Specification for Copper Alloy Rods and Bars |
| IS 318 | Indian Standard for Phosphor Bronze Rods and Bars |
| EN 1982 | European Standard for Copper Alloys – Rods & Bars |
| Type | Description |
|---|---|
| C93200 | Phosphor Bronze with excellent wear resistance and low friction properties |
| C95400 | Aluminum-Phosphor Bronze for marine and high-strength applications |
| C51000 | Phosphor Bronze for electrical and spring applications |
| C54400 | Leaded Phosphor Bronze for improved machinability |
Phosphor Bronze Round Bars are also easily machinable, allowing precision fabrication with minimal tool wear. They can be soldered, brazed, or joined using conventional techniques, making them versatile for both industrial and decorative applications..
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