Description
xRapidKeen Premium Brass Round Bars - 6mm (0.236") to 15mm (0.591") Diameter
Product Overview
RapidKeen is proud to offer high-quality brass round bars in diameters ranging from 6mm (0.236") to 15mm (0.591"), manufactured to the strictest industry standards. Our brass bars are available in two primary grades: C27200 Yellow Brass and C28000 Muntz Metal, both renowned for their exceptional combination of strength, corrosion resistance, formability, and aesthetic appeal. We also provide limited quantities of other brass alloys upon request to meet your specific project requirements.
Each brass round bar is precision-engineered to ensure consistent diameter, straightness, and surface finish throughout its length. Our bars are ideal for a wide range of applications across various industries, including manufacturing, construction, marine, electrical, plumbing, and decorative arts. Whether you need material for CNC machining, fabrication, or general purpose use, RapidKeen brass round bars deliver reliable performance and excellent value.
Key Features & Benefits
- Precision Dimensions: Tight tolerance control ensures consistent diameter and straightness for reliable performance in all applications
- Superior Corrosion Resistance: Excellent resistance to atmospheric corrosion, freshwater, and many chemicals
- Excellent Formability: Can be easily bent, formed, stamped, and drawn into complex shapes
- Good Machinability: Produces smooth finishes and holds tight tolerances during machining operations
- High Thermal & Electrical Conductivity: Ideal for heat exchangers, electrical terminals, and connectors
- Attractive Golden-Yellow Color: Provides a beautiful, durable finish for decorative applications
- Non-Magnetic & Non-Sparking: Safe for use in sensitive electronic equipment and hazardous environments
- RoHS Compliant: Meets all environmental regulations for lead content in C27200 and C28000 grades
- Versatile Applications: Suitable for industrial, commercial, and residential projects
- Quality Assured: Manufactured in accordance with ASTM international standards
C27200 Yellow Brass (63/37 Brass)
C27200, also known as 63/37 brass or yellow brass, is one of the most widely used copper-zinc alloys due to its excellent balance of properties. It contains approximately 63% copper and 37% zinc, with trace amounts of other elements. This alloy offers superior ductility, good strength, and excellent corrosion resistance, making it suitable for a vast array of applications.
Chemical Composition (UNS C27200)
| Element | Minimum (%) | Maximum (%) |
|---|---|---|
| Copper (Cu) | 62.0 | 65.0 |
| Lead (Pb) | - | 0.07 |
| Iron (Fe) | - | 0.07 |
| Zinc (Zn) | Remainder | |
Note: Copper plus sum of named elements shall be 99.7% minimum.
Physical Properties
| Property | Value |
|---|---|
| Density | 8.48 g/cm³ (0.306 lb/in³) |
| Melting Point Range | 905-935°C (1660-1715°F) |
| Electrical Conductivity | 28% IACS (International Annealed Copper Standard) |
| Thermal Conductivity | 120 W/m·K (69.4 Btu/ft·h·°F) |
| Coefficient of Thermal Expansion | 19.9 × 10⁻⁶/°C (11.1 × 10⁻⁶/°F) |
| Modulus of Elasticity | 110 GPa (16 × 10⁶ psi) |
Mechanical Properties (Cold Drawn, H02 Temper)
| Property | Value |
|---|---|
| Tensile Strength | 400-500 MPa (58,000-72,500 psi) |
| Yield Strength (0.5% Extension) | 320-380 MPa (46,400-55,100 psi) |
| Elongation in 50mm (1.969") | 20-30% |
| Hardness (Brinell) | 100-130 BHN |
| Hardness (Rockwell B) | 60-75 HRB |
Note: Mechanical properties vary with diameter and temper. Annealed (O61) temper offers higher ductility but lower strength.
Key Characteristics of C27200
- Exceptional Cold Formability: Can be easily bent, drawn, stamped, and spun into complex shapes without cracking
- Excellent Corrosion Resistance: Performs well in atmospheric conditions, freshwater, and many mild chemical environments
- Good Machinability: Rated at approximately 40% of C36000 free-cutting brass, producing good surface finishes
- Superior Solderability & Brazability: Joins easily using standard soldering and brazing techniques
- Attractive Bright Yellow Color: Provides a classic, elegant appearance for decorative applications
- Low Lead Content: RoHS compliant and suitable for applications where lead exposure is a concern
- Good Polishing Characteristics: Can be polished to a high, mirror-like finish
Common Applications for C27200 Brass Round Bars
- Architectural hardware (handles, knobs, hinges, brackets)
- Plumbing components (fittings, valves, faucets, pipe nipples)
- Electrical terminals, connectors, and bus bars
- Fasteners (screws, bolts, nuts, washers)
- Musical instruments (brass instruments, guitar parts)
- Decorative items and jewelry
- Automotive components (radiator cores, hose fittings)
- Marine hardware (cleats, rails, fittings)
- General fabrication and machining projects
- Heat exchangers and cooling systems
C28000 Muntz Metal (60/40 Brass)
C28000, commonly known as Muntz Metal or 60/40 brass, is an alpha-beta brass alloy containing approximately 60% copper and 40% zinc. This higher zinc content gives C28000 greater strength and hardness compared to C27200, while still maintaining good formability and excellent corrosion resistance, particularly in marine environments. It is an economical choice for applications requiring higher strength and durability.
Chemical Composition (UNS C28000)
| Element | Minimum (%) | Maximum (%) |
|---|---|---|
| Copper (Cu) | 59.0 | 62.0 |
| Lead (Pb) | - | 0.30 |
| Iron (Fe) | - | 0.07 |
| Zinc (Zn) | Remainder | |
Note: Copper plus sum of named elements shall be 99.7% minimum.
Physical Properties
| Property | Value |
|---|---|
| Density | 8.47 g/cm³ (0.306 lb/in³) |
| Melting Point Range | 900-940°C (1650-1725°F) |
| Electrical Conductivity | 27% IACS (International Annealed Copper Standard) |
| Thermal Conductivity | 116 W/m·K (67.1 Btu/ft·h·°F) |
| Coefficient of Thermal Expansion | 20.3 × 10⁻⁶/°C (11.3 × 10⁻⁶/°F) |
| Modulus of Elasticity | 110 GPa (16 × 10⁶ psi) |
Mechanical Properties (Hot Extruded, H02 Temper)
| Property | Value |
|---|---|
| Tensile Strength | 370-575 MPa (53,600-83,400 psi) |
| Yield Strength (0.5% Extension) | 90-355 MPa (13,050-51,500 psi) |
| Elongation in 50mm (1.969") | 20-45% |
| Hardness (Brinell) | 85-160 BHN |
| Hardness (Rockwell B) | 50-85 HRB |
Note: Mechanical properties vary with diameter and processing method. Annealed material offers maximum ductility.
Key Characteristics of C28000
- Higher Strength & Hardness: Offers greater mechanical strength than C27200 brass
- Excellent Marine Corrosion Resistance: Performs exceptionally well in saltwater and coastal environments
- Good Hot & Cold Formability: Can be hot forged and cold worked with proper techniques
- Good Machinability: Rated at approximately 45% of C36000 free-cutting brass
- Excellent Solderability & Brazability: Joins easily using standard joining methods
- Economical: Higher zinc content reduces material cost compared to higher copper alloys
- Good Wear Resistance: Suitable for applications involving moderate friction and wear
- Attractive Golden Color: Provides a rich, warm appearance for architectural and decorative uses
Common Applications for C28000 Brass Round Bars
- Marine hardware (propeller shafts, rudders, cleats, bollards)
- Architectural components (handrails, balusters, decorative trim)
- Structural supports and brackets
- Valve bodies and components
- Plumbing fittings for high-pressure applications
- Heat exchanger tubes and components
- Automotive parts (radiator components, fasteners)
- Gears, pins, and bushings
- Welding rods and brazing alloys
- General engineering and fabrication projects
Other Available Brass Alloys
In addition to our primary C27200 and C28000 grades, RapidKeen can supply limited quantities of other brass alloys upon special request. These include:
- C36000 Free-Cutting Brass: The industry standard for high-speed machining operations, offering exceptional machinability with a rating of 100%. Contains 2.5-3.0% lead for improved chip breaking.
- C26000 Cartridge Brass: Offers excellent cold formability and deep drawing characteristics, ideal for applications requiring severe deformation.
- C27400 Yellow Brass: Similar to C27200 with slightly higher zinc content, providing a balance of strength and formability at a lower cost.
Please contact our sales team for availability and pricing information on these additional alloys.
Machining & Fabrication Performance
RapidKeen brass round bars are designed to provide excellent performance in a wide range of machining and fabrication processes. Both C27200 and C28000 alloys offer good machinability, producing smooth surface finishes and holding tight tolerances. While not as free-machining as leaded brasses like C36000, they are still suitable for most general machining operations.
Recommended Machining Practices
- Cutting Tools: Use high-speed steel (HSS) or carbide tools for best results
- Cutting Speeds: 100-200 m/min (328-656 ft/min) for HSS tools, 200-300 m/min (656-984 ft/min) for carbide tools
- Feed Rates: 0.1-0.3 mm/rev (0.004-0.012 in/rev) depending on operation and tool type
- Coolant: Use soluble oil or synthetic coolant to improve surface finish and extend tool life
- Chip Control: Use chip breakers or appropriate tool geometry to manage long, stringy chips
Fabrication Capabilities
- Bending & Forming: Both alloys can be easily bent and formed into various shapes. Annealing may be required for severe bends to prevent cracking
- Welding: Gas tungsten arc welding (GTAW/TIG) and gas metal arc welding (GMAW/MIG) are possible, but brazing and soldering are preferred
- Soldering & Brazing: Excellent results with all standard soldering and brazing techniques
- Threading: Produces clean, sharp threads using standard threading tools
- Polishing & Finishing: Can be polished to a high, mirror-like finish for decorative applications
Comprehensive Application Guide
RapidKeen brass round bars find applications across numerous industries due to their versatile properties. Below is a detailed breakdown of how our C27200 and C28000 brass bars are used in different sectors:
Architectural & Construction Industry
- Door and window hardware (handles, knobs, hinges, locks)
- Staircase components (handrails, balusters, newel posts)
- Decorative trim and accents
- Curtain rods and brackets
- Lighting fixtures and components
- Furniture hardware and accents
- Signage and lettering
Marine & Boating Industry
- Cleats, bollards, and mooring hardware
- Handrails and safety rails
- Propeller shafts and components
- Rudder parts and fittings
- Valve and pump components
- Plumbing systems for boats and yachts
- Navigation equipment components
Plumbing & HVAC Industry
- Pipe fittings and couplings
- Valve bodies, stems, and handles
- Faucets and shower components
- Water meter parts
- Heat exchanger tubes and components
- Refrigeration components
- Air conditioning fittings
Electrical & Electronics Industry
- Electrical terminals and connectors
- Bus bars and power distribution components
- Switch parts and components
- Circuit board hardware
- Battery terminals
- Grounding rods and components
- Lighting socket parts
Automotive & Transportation Industry
- Radiator cores and components
- Hose fittings and connectors
- Fuel system components
- Brake system parts
- Fasteners and hardware
- Gauge components
- Decorative trim and accents
Industrial & Manufacturing
- Gears, pinions, and bushings
- Shafts and axles
- Fasteners (screws, bolts, nuts, washers)
- Tool and die components
- Jigs and fixtures
- Conveyor components
- General machine parts
Decorative & Artistic Applications
- Jewelry and accessories
- Sculptures and art installations
- Musical instruments (brass instruments, guitar parts)
- Home decor items
- Tableware and serving pieces
- Hardware for furniture and cabinets
- Custom metalwork and fabrication
Quality Assurance & Standards
At RapidKeen, quality is our top priority. All our brass round bars are manufactured in accordance with the highest international standards to ensure consistent performance and reliability. Our quality control process includes:
- Raw Material Inspection: All incoming materials are tested for chemical composition and physical properties
- In-Process Quality Control: Regular inspections during manufacturing to ensure dimensional accuracy and surface quality
- Final Inspection: Comprehensive testing of finished products before shipment
- Traceability: Full traceability from raw material to finished product
Our brass round bars meet or exceed the requirements of the following standards:
- ASTM B134: Standard Specification for Brass Wire
- ASTM B36: Standard Specification for Brass Sheet, Strip, Plate, and Rolled Bar
- SAE J463: Wrought Copper Alloys
- RoHS Directive: Restriction of Hazardous Substances
Why Choose RapidKeen Brass Round Bars?
When you choose RapidKeen for your brass round bar needs, you're getting more than just a product – you're getting a partner committed to your success. Here's why customers trust us:
Premium Quality Materials
We source only the highest quality raw materials from reputable suppliers and manufacture our brass bars using advanced production techniques. This ensures consistent quality, excellent mechanical properties, and superior performance in all applications.
Precision Manufacturing
Our state-of-the-art manufacturing facilities utilize the latest technology to produce brass round bars with tight dimensional tolerances, excellent straightness, and superior surface finish. Every bar is carefully inspected to meet our rigorous quality standards.
Extensive Inventory
We maintain a large inventory of brass round bars in all standard diameters from 6mm (0.236") to 15mm (0.591") in both C27200 and C28000 grades. This allows us to offer fast shipping and quick turnaround times for your orders.
Customization Options
In addition to standard sizes, we offer custom cutting services to provide you with the exact lengths you need. We can also supply special alloys, tempers, and surface finishes upon request to meet your specific project requirements.
Competitive Pricing
We offer competitive pricing on all our brass products without compromising on quality. Our efficient manufacturing processes and bulk purchasing power allow us to pass savings on to our customers.
Exceptional Customer Service
Our knowledgeable and friendly customer service team is always ready to assist you with any questions or concerns. We are committed to providing you with the best possible shopping experience and ensuring your complete satisfaction.
Fast & Reliable Shipping
We offer fast shipping throughout the United States and internationally. Most standard orders are processed and shipped within 1-5 business days. Custom products may have longer lead times depending on the complexity of the machining or fabrication required.
Ordering Information
To order RapidKeen brass round bars, simply select the desired diameter, length, and quantity from our product options. We offer flexible packaging options to meet your needs, from individual bars to bulk quantities for larger projects.
If you have any questions about our products, need custom sizes or alloys, or would like to request a quote for a large order, please don't hesitate to contact our sales team. We are here to help you find the perfect brass solution for your project.
Note: All dimensions are nominal. Actual dimensions may vary slightly within industry standard tolerances. Length tolerance is ±2mm (0.079") for standard lengths. Custom cut lengths are available with tighter tolerances upon request.
Shipping: Standard orders ship within 1-5 business days. Custom orders require additional processing time based on the complexity of your specifications. Our sales team will provide you with an estimated delivery date when you place your custom order.
Shipping & Return
xReturns Policy
You may return items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
- Choosing a selection results in a full page refresh.