Phosphorus Bronze Round Bar
Phosphorus Bronze Round Bar is a high-performance alloy known for its excellent strength, corrosion resistance, and wear properties. Composed primarily of copper with added phosphorus and tin, this material offers enhanced hardness and fatigue resistance, making it ideal for demanding industrial environments. Manufactured in precise round bar form, it is commonly supplied in various diameters and lengths to meet diverse engineering requirements.
This alloy's unique composition provides superior resistance to seawater corrosion and excellent machinability, which makes it a preferred choice in marine hardware, electrical components, and precision instruments. Its mechanical properties include good tensile strength and elasticity, enabling it to withstand repetitive stress and maintain dimensional stability under load. Typical specifications conform to ASTM B103 and BS EN standards, ensuring consistent quality and performance across batches.
Phosphorus bronze round bars are widely used in the production of bearings, bushings, springs, and gears, where durability and low friction are critical. The material's natural lubricity reduces wear in moving parts, extending the lifespan of components in automotive, aerospace, and industrial machinery sectors. Additionally, its non-magnetic characteristics and resistance to fatigue make it suitable for electrical connectors and sensitive measuring devices.
Export-ready products are available with certifications such as ISO 9001 and RoHS compliance, facilitating global trade and ensuring adherence to international quality standards. Suppliers typically offer custom machining and finishing services to accommodate specific client specifications, including heat treatment and surface coating options. Packaging is designed to protect the bars during transit, minimizing damage and preserving surface integrity for seamless integration into manufacturing workflows.
Lead Time
2–7 weeks depending on size
Delivery Terms
FOB, CIF, DDP
Shipping Modes
Sea / Air / Express
Why Phosphorus Bronze Round Bar Are Preferred by Global Buyers
- ✔ Factory Pricing: Direct manufacturer rates with bulk stock
- ✔ Certified Quality: ISO & 3rd-party tested, EN 10204 certified
- ✔ Export-Ready: Sea-worthy packaging for on-time delivery
- ✔ Fast RFQs: Quick quotes for custom sizes & quantities
- ✔ Traceability: 100% heat number tracking from raw material to finished product
Trusted by industries like oil & gas, petrochemicals, power, marine, and heavy engineering.
- Manufacturing Capacity: 500 MT / Month
- Export Experience: 15+ Years
- Countries Served: 50+
- Annual Export Volume: 5,500 MT
Table of Contents
- 1. What is Phosphorus Bronze Round Bar
- 2. How to Choose the Right Manufacturer
- 3.Comparison of Phosphorus Bronze Round Bar
- 4. Why Global Buyers Source from Ragnar Metals and Tubes
- 5. Features
- 6. Technical Overview
- 7. Specifications
- 8. Available Grades
- 9. Available Sizes
- 10. Chemical Properties
- 11. Mechanical Properties
- 12. Physical & Thermal Properties
- 13. Electrical Resistivity
- 14. Equivalent Grades
- 15. Manufacturing Process & Heat Treatment
- 16. Various Types
- 17. Applications & Uses
- 18. Industries We Serve
- 19. Latest Price List
- 20. MOQ & Payment Terms
- 21. Export Packaging & Shipping
- 22. Cities We Supply in India
- 23. Countries We Export Worldwide
- 24. Our Certifications
- 25. Quality Inspection & Testing
- 26. Our Other Product Types
- 27. People Also Search For
- 28. Frequently Asked Questions
- 29. About Ragnar Metals and Tubes
How to Choose the Right Phosphorus Bronze Round Bar
India is home to hundreds of manufacturers ranging from small job shops to large ISO-certified exporters. International and domestic buyers typically evaluate manufacturers based on quality compliance, production capacity, export experience, and pricing transparency.
- Certification & international standards (ASME, ASTM, EN)
- Manufacturing capability vs trading activity
- Export documentation & inspection support
- Stock availability & lead time reliability
- Past supply experience in oil & gas, EPC & heavy industries
Comparison Factors Among Phosphorus Bronze Round Bar
| Evaluation Factor | Small Local Suppliers | Trading Companies | ISO-Certified Manufacturers |
|---|---|---|---|
| Manufacturing Control | Limited | None | Full in-house / audited partners |
| International Standards | Basic | Depends on source | ASME / ASTM / EN |
| Inspection & MTCs | Limited | Inconsistent | EN 10204 3.1 / 3.2 |
| Export Experience | Low | Medium | 50+ countries |
| Risk for EPC Projects | High | Medium | Low |
International buyers typically prefer ISO-certified manufacturers for large-scale or critical applications due to better quality control, documentation, and lower project risk.
Why Global Buyers Choose Ragnar Metals and Tubes
Ragnar Metals and Tubes is a trusted ISO 9001:2015 certified manufacturer and global exporter of ferro alloys and metal products, supplying consistent, high-quality materials to customers across USA, UK, Europe, Middle East, Africa, and Asia-Pacific. Our focus on quality assurance, cost efficiency, and on-time delivery makes us a preferred sourcing partner for international buyers.
| Key Advantage | Buyer Benefit |
|---|---|
| ISO 9001:2015 Certified Manufacturing | Consistent quality with documented QA systems and process control |
| ASME / ASTM / EN Compliant Products | Globally accepted standards with EN 10204 3.1 / 3.2 MTCs |
| Lower Manufacturing & Sourcing Costs | Save up to 15–20% compared to European suppliers |
| Favorable Exchange Rate Advantage | Reduced landed cost for international importers |
| In-House Testing & Inspection Facilities | Strict chemical, mechanical & dimensional quality checks |
| Bulk Stock & High Production Capacity | Fast order fulfillment and stable supply for large projects |
| Custom Sizes & Drawing-Based Manufacturing | Products manufactured exactly to buyer specifications |
| Export-Grade Packaging & Global Logistics | Sea-worthy packing, palletization & worldwide shipping support |
| Faster Global Shipping Routes | Optimized logistics for Middle East, Africa & Southeast Asia |
| Technical & After-Sales Support | Project assistance, documentation & responsive RFQ handling |
| Trusted by Global Steel & EPC Companies | Proven export experience across 50+ countries |
Features of Phosphorus Bronze Round Bar
- ✔ Excellent corrosion resistance in marine environments
- ✔ High fatigue strength, ideal for demanding applications
- ✔ Superior wear resistance, reducing maintenance needs
- ✔ Good machinability for intricate designs
- ✔ Improved electrical conductivity, suitable for electrical applications
- ✔ Versatile alloy composition for various industrial uses
Technical Overview of Phosphorus Bronze Round Bar
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Phosphorus Bronze Round Bar | Copper (Cu) 90%, Tin (Sn) 10%, Phosphorus (P) 0.5% | Used in electrical connectors, springs, and marine applications due to excellent corrosion resistance and good mechanical properties. | ASTM B150, ASTM B271 |
| Phosphorus Bronze Round Bar | Copper (Cu) 85%, Tin (Sn) 15%, Phosphorus (P) 0.5% | Ideal for applications requiring high strength and wear resistance, such as gears and bearings. | ASTM B150, ASTM B271 |
| Phosphorus Bronze Round Bar | Copper (Cu) 92%, Tin (Sn) 8%, Phosphorus (P) 0.5% | Commonly used in the manufacturing of valves and pumps, owing to its superior machinability. | ASTM B150, ASTM B271 |
Specifications Table
| Material | Phosphorus Bronze |
|---|---|
| Grades | C51000, C51900, C54400 |
| Standard | ASTM B150, ASTM B271 |
| Size Range | 3/16" to 6" diameter |
| Length | Up to 20 feet |
| Form | Round Bar |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Phosphorus Bronze C51000 | 95% Copper, 5% Tin, 0.05% Phosphorus | Electrical connectors, marine hardware |
| Phosphorus Bronze C52100 | 90% Copper, 10% Tin, 0.02% Phosphorus | Spring applications, bushings |
| Phosphorus Bronze C54400 | 88% Copper, 12% Tin, 0.03% Phosphorus | Pipes, valves, gears |
| Phosphorus Bronze C53400 | 85% Copper, 15% Tin, 0.01% Phosphorus | Heavy-duty applications, shipbuilding |
| Phosphorus Bronze C53000 | 92% Copper, 8% Tin, 0.02% Phosphorus | Architectural applications, fasteners |
Available Sizes of Phosphorus Bronze Round Bar (MM)
| Size (MM) | Size (MM) |
|---|---|
| 5 | 6 |
| 8 | 10 |
| 12 | 14 |
| 16 | 18 |
| 20 | 22 |
| 25 | 30 |
| 32 | 35 |
| 40 | 45 |
| 50 | 55 |
| 60 | 70 |
Chemical Properties of Phosphorus Bronze Round Bar
| Element | Composition (%) |
|---|---|
| Copper (Cu) | 90.0 - 94.0 |
| Tin (Sn) | 5.0 - 10.0 |
| Phosphorus (P) | 0.01 - 0.5 |
| Lead (Pb) | 0.0 - 0.2 |
| Iron (Fe) | 0.0 - 0.3 |
| Zinc (Zn) | 0.0 - 0.5 |
| Nickel (Ni) | 0.0 - 0.5 |
| Other Elements | 0.0 - 1.0 |
Mechanical Properties of Phosphorus Bronze Round Bar
| Property | Value |
|---|---|
| Tensile Strength | 500-700 MPa |
| Yield Strength | 200-450 MPa |
| Elongation | 10-30% |
| Hardness (Brinell) | 100-200 HB |
| Modulus of Elasticity | 100-120 GPa |
Phosphorus Bronze Round Bar – Physical & Thermal Properties
Density of Phosphorus Bronze Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Density | 8.73 g/cm³ | 0.316 lb/in³ |
Melting Point of Phosphorus Bronze Round Bar
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 900 - 950 °C | 1652 - 1742 °F |
Specific Heat of Phosphorus Bronze Round Bar
| Specific Heat of Phosphorus Bronze Round Bar | ||
|---|---|---|
| Specific Heat (J/kg·K) | Temperature Range (°C) | Condition |
| 385 | 20 - 100 | Solid |
| 420 | 100 - 300 | Solid |
| 450 | 300 - 600 | Solid |
Electrical Resistivity of Phosphorus Bronze Round Bar
| Electrical Resistivity | ||
|---|---|---|
| Value (µΩ·m) | Temperature (°C) | Treatment or Condition |
| 15.0 | 20 | Annealed |
| 15.5 | 100 | |
| 16.0 | 200 | |
| 16.5 | 300 | |
| 17.0 | 400 | |
Equivalent of Phosphorus Bronze Round Bar
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| ASTM B150 | CuSn | C51900 |
| BS 2870 | C 624 | CW453K |
Manufacturing Process & Heat Treatment of Phosphorus Bronze Round Bar
Annealing
Annealing of phosphorus bronze round bars involves heating the material to a temperature range of 600-800°C, followed by controlled cooling. This process relieves internal stresses, enhances ductility, and improves machinability, making the material easier to work with in subsequent manufacturing processes.
Forging
Forging of phosphorus bronze round bars is typically performed at elevated temperatures between 700-900°C. This process shapes the material through compressive forces, enhancing its mechanical properties and ensuring a uniform grain structure. Forging also helps to refine the microstructure, resulting in improved strength and toughness.
Hardening & Tempering
| Process | Temperature Range (°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 800-900 | Water or Oil | To increase hardness and strength |
| Tempering | 300-500 | Air | To reduce brittleness and improve toughness |
| Stress Relieving | 200-300 | Air | To relieve residual stresses after machining |
The combination of these processes ensures that phosphorus bronze round bars achieve optimal mechanical properties and performance characteristics, making them suitable for a wide range of applications in various industries.
Various Types
Phosphorus Bronze C51900 Round Bar
- Diameter: 1 inch to 4 inches
- Condition: Hot Rolled
- Applications: Electrical connectors, marine hardware
Phosphorus Bronze C51000 Round Bar
- Diameter: 0.5 inch to 2 inches
- Condition: Cold Drawn
- Applications: Bushings, bearings, and springs
Phosphorus Bronze C54400 Round Bar
- Diameter: 2 inches to 6 inches
- Condition: Annealed
- Applications: High-strength applications, valves
Phosphorus Bronze C65500 Round Bar
- Diameter: 0.75 inch to 3 inches
- Condition: Stress Relieved
- Applications: Aerospace components, electrical applications
Applications & Uses
- Oil & Gas Industry: Pipelines, process piping, and high-pressure fluid handling systems.
- Petrochemical & Refineries: Reactors, heat exchangers, and chemical processing units.
- Water Treatment Plants: Filtration systems, storage tanks, and corrosion-resistant piping.
- Pharmaceutical Industry: Hygienic piping, sanitary fittings, and cleanroom equipment.
- Food & Beverage: Processing lines, storage vessels, and contamination-free pipelines.
- Automobile & Engineering: Exhaust systems, structural parts, and precision components.
- Power & Energy Sector: Boilers, condensers, and turbine piping systems.
- Marine & Offshore: Shipbuilding, offshore platforms, and coastal infrastructure.
- Construction & Infrastructure: Structural frameworks, bridges, and industrial buildings.
Industries We Serve
Our stainless steel, alloy steel, and high-performance metal products are widely used across the following industries:
Latest Price List of Phosphorus Bronze Round Bar
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| Phosphorus Bronze | 3 mm | $6.50 – $7.00 | ₹540 – ₹600 |
| Phosphorus Bronze | 6 mm | $6.20 – $6.80 | ₹520 – ₹590 |
| Phosphorus Bronze | 10 mm | $5.90 – $6.50 | ₹500 – ₹570 |
Note: Prices are indicative and may vary based on size, quantity, raw material cost, and delivery location. Contact us for the latest quotation for Phosphorus Bronze Round Bar.
MOQ & Payment Terms
Minimum Order Quantity: 25–100 Kg depending on part size and grade.
Payment Terms: Depending On Grade and Quantity Size
Export Packaging & Shipping
- Seaworthy, fumigated wooden crates with waterproof inner lining
- Palletised packing with clear shipping marks and heat number identification
- Container stuffing supervision with loading photographs available on request
We Exported to 50+ Countries Worldwide
| Global Export Destinations | |||||
|---|---|---|---|---|---|
| United States | Canada | Mexico | United Kingdom | Germany | Netherlands |
| Italy | Spain | South Africa | Australia | India | Korea |
| United Arab Emirates | Saudi Arabia | Qatar | Kuwait | Oman | Bahrain |
| Singapore | Malaysia | Indonesia | Dubai | Riyadh | Dammam |
Our Certifications
We are a certified manufacturer and exporter, committed to strict quality control and international compliance standards. Below are our key certifications.
GST Registered
ISO 9001:2015
ISO 1002:2018
Udyam MSME Registration
Testing Process & Quality Assurance – Ragnar Metals & Tubes
At Ragnar Metals & Tubes, our testing process ensures the safety, reliability, and performance of stainless steel and alloy steel products supplied for global industrial and infrastructure projects. Each batch is verified from raw material selection to final dispatch under internationally recognized standards including ASTM, ASME, ISO, DIN, and EN.
Detects internal flaws using high-frequency sound waves
Measures yield strength, elongation, and material durability
Evaluates toughness under low-temperature and high-stress conditions
Ensures smoothness, coating quality, and visual compliance
Enhances hardness, strength, and corrosion resistance
Measures resistance to deformation and wear
Documentation & Global Compliance
- ✔ EN 10204 3.1 / 3.2 Mill Test Certificates (MTC)
- ✔ Batch-wise quality traceability and inspection records
- ✔ Third-party inspection by SGS, TUV, Bureau Veritas & Lloyd’s
- ✔ Export documentation support for customs and international shipping
Supporting supply for oil & gas, petrochemical, power generation, marine, infrastructure, and heavy engineering industries worldwide.
Related Products
Explore our full range of stainless steel and alloy steel products including pipes, tubes, fittings, flanges, sheets, plates, spools, fasteners, round bars, and special grades manufactured for industrial, infrastructure, and global export applications.
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Frequently Asked Questions
About Ragnar Metals & Tubes
- ✔ Leading manufacturer, stockist, and exporter of stainless steel and alloy steel products for industrial and infrastructure projects
- ✔ ISO 9001:2015 certified quality management system ensuring consistent product reliability and compliance
- ✔ Specialized in precision pipes, tubes, fittings, flanges, sheets, plates, fasteners, and round bars
- ✔ Modern processing and testing facilities with advanced manufacturing and inspection equipment
- ✔ Custom-engineered solutions based on client drawings and technical specifications
- ✔ Full material traceability with EN 10204 3.1 / 3.2 mill test certification
- ✔ Compliance with ASTM, ASME, DIN, EN, and ISO international standards
- ✔ Trusted global supplier supporting oil & gas, petrochemical, power, marine, and heavy engineering industries