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Brass Flat Bar: Definition and Basic Properties
A Brass Flat Bar is a solid brass alloy material with a rectangular cross-section. Due to its excellent electrical conductivity, corrosion resistance, and mechanical processing performance, it is an indispensable basic profile in power grounding systems, architectural decoration, and precision engineering.
Within the production and supporting system of Shaoxing Sweld Electric Co., Ltd., the Brass Flat Bar often serves as the core base material for high-performance electrical hardware connection parts, widely used in lightning protection and grounding projects. Established in 2018 and located in Shengzhou, Shaoxing, China—the hometown of Shaoxing Opera—Shaoxing Sweld Electric Co., Ltd. operates a 3,000-square-meter modern factory with a professional technical team and sales elite totaling more than 50 members.
Core Physical and Mechanical Characteristics
Superior Electrical Conductivity: Although slightly lower than pure copper, the conductivity of a Brass Flat Bar is sufficient to meet the requirements of most grounding bars and electrical connections while offering higher hardness and a more stable structure. In complex power transmission systems, the Brass Flat Bar can effectively carry current loads.
Outstanding Corrosion Resistance: The zinc content in the alloy forms a protective oxide layer, allowing the Brass Flat Bar to maintain its physical properties even in humid or slightly chemically corrosive environments. This is crucial for grounding systems buried underground for long periods.
High Processing Adaptability: Shaoxing Sweld Electric Co., Ltd. utilizes 7 high-speed CNC machining centers to provide real-time design and precision molding for various specifications of Brass Flat Bar, meeting customer needs for complex shapes.
Thermodynamic Performance: In the exothermic welding process, the Brass Flat Bar demonstrates excellent thermal compatibility, forming a high-strength molecular bond with the welding powder. We have an annual production capacity of 500 tons of exothermic welding powder, providing perfect connection solutions for the Brass Flat Bar.
Parameter Comparison: Brass Flat Bar vs. Other Metals
To help you understand its advantages more intuitively, the following table compares the key parameters of the Brass Flat Bar with other common metal profiles:
| Property Parameter | Brass Flat Bar (C36000) | Copper Flat Bar | Stainless Steel Flat Bar |
| Density (g/cm3) | 8.5 | 8.96 | 7.9 |
| Conductivity (% IACS) | 26% - 28% | 100% - 101% | 2% - 3% |
| Hardness (Rockwell B) | 78 (Hard) | 40 - 50 | 80+ |
| Corrosion Resistance | Excellent (Atmospheric/Water) | Excellent (But Softer) | Great (Oxidation Resistant) |
| Machinability | 100% (Industry Standard) | 20% | 45% |
| Main Uses | Grounding, Decor, Precision Parts | Core Conductors, Transformers | Structures, Corrosive Environments |
Shaoxing Sweld Electric Co., Ltd. is located in Shengzhou, Shaoxing, China. Our professional technical team can recommend the most suitable Brass Flat Bar specifications for your specific project based on the above parameters. We not only provide high-quality materials but also ensure that every Brass Flat Bar used for electrical hardware connections meets national certification laboratory testing standards through our ISO9001-certified quality management system.
Common Brass Flat Bar Material Grades
In different industrial applications, the alloy composition ratio of the Brass Flat Bar determines its mechanical strength, conductivity, and processing difficulty. Shaoxing Sweld Electric Co., Ltd. strictly selects raw materials according to international standards to ensure stable physical properties for electrical hardware connection parts.
C36000 (Free Cutting Brass)
This is the most popular grade of Brass Flat Bar, known for its exceptional cutting performance. It contains a small amount of lead, which acts as a lubricant and chip breaker, making it the most efficient brass grade for processing. Since Shaoxing Sweld Electric Co., Ltd. is equipped with 7 high-speed CNC machining centers, we frequently use C36000 Brass Flat Bar to customize complex electrical connectors and exothermic welding mold accessories for our customers.
C26000 (Cartridge Brass)
Also known as 70/30 brass, it is one of the best Brass Flat Bar materials for cold working. It possesses excellent ductility and high strength with a bright golden color, suitable for cold heading and deep drawing. It is ideal for Brass Flat Bar components requiring deep stamping or bending, often used in decorative architectural hardware and specific lightning protection connectors.
C46400 (Naval Brass)
A Brass Flat Bar specifically designed for marine environments. Tin is added to the alloy, greatly enhancing resistance to saltwater corrosion and performing excellently in harsh environments. If your grounding project is located in coastal areas, Shaoxing Sweld Electric Co., Ltd. recommends choosing this grade of Brass Flat Bar to extend the system's service life.
Material Grade Parameter Comparison Table
The following table lists the performance indicators of several Brass Flat Bar grades commonly used by Shaoxing Sweld Electric Co., Ltd. during production:
| Material Grade (UNS) | Copper Content (%) | Zinc Content (%) | Other Main Elements | Hardness (Typical HRB) | Machinability Rating |
| C36000 | 60.0 - 63.0 | Remainder | 2.5 - 3.7% Pb | 73 - 84 | 100 |
| C26000 | 68.5 - 71.5 | Remainder | < 0.07% Pb | 55 - 65 | 30 |
| C46400 | 59.0 - 62.0 | Remainder | 0.5 - 1.0% Sn | 75 - 85 | 30 |
Shaoxing Sweld Electric Co., Ltd. deeply understands the impact of material grades on safety performance. Our factory has passed ISO9001 quality management system certification, and all incoming Brass Flat Bar raw materials must undergo spectral analysis. Because we produce 500 tons of exothermic welding powder annually and manufacture matching molds, we pay special attention to the thermal expansion coefficient of the Brass Flat Bar during the high-temperature welding instant. All related products have passed national certification laboratory testing.
Main Processing Technologies for Brass Flat Bar
The final performance of a Brass Flat Bar depends not only on the material grade but also on the molding process. Shaoxing Sweld Electric Co., Ltd. selects the most appropriate processing path based on customer requirements for mechanical strength and dimensional accuracy.
Core Molding Processes
Cold Drawn: This involves pulling hot-rolled brass blanks through a die. This process significantly improves the dimensional accuracy and surface finish of the Brass Flat Bar while increasing the yield strength through work hardening.
Extruded: Heating the brass and forcing it through a specific mold under high pressure. The Brass Flat Bar produced by extrusion has a dense internal structure, making it ideal for secondary precision machining in the high-speed CNC centers of Shaoxing Sweld Electric Co., Ltd.
Surface Polishing and Plating: To enhance the oxidation resistance of the Brass Flat Bar in extreme environments, we offer polishing or tin-plating. Tin-plated Brass Flat Bar not only looks professional but also effectively prevents patina formation and reduces contact resistance.
Processing Technology Parameter Comparison Table
The following table shows the differences in physical characteristics of Brass Flat Bar under different processing methods:
| Process Feature | Cold Drawn | Extruded | Hot Rolled |
| Dimensional Tolerance | Very Small (±0.05mm) | Medium (±0.15mm) | Large (±0.5mm) |
| Surface Roughness | Ra ≤ 0.8 μm (Bright) | Ra ≈ 3.2 μm (Matte) | Rough (Scale) |
| Tensile Strength | Highest | Medium | Lowest |
| Internal Stress | Higher | Very Low | None |
| Best Scenario | Precision Mech/Contacts | Structures/Molds | Large Grounding Grids |
As a professional manufacturer certified by ISO14001 (Environmental Management) and ISO45001 (Occupational Health and Safety), Shaoxing Sweld Electric Co., Ltd. has significant technical expertise in handling Brass Flat Bar. Our 7 high-speed CNC machining centers can process large quantities of Brass Flat Bar daily into fasteners for exothermic welding molds or complex electrical connection plates, with a daily capacity of 180 sets of mold components. Within our 3,000-square-meter modern factory, we provide real-time design and manufacturing services for your Brass Flat Bar needs.
Multi-Field Applications of Brass Flat Bar
Due to its unique alloy properties, the Brass Flat Bar achieves a perfect balance between industrial functionality and architectural aesthetics. Shaoxing Sweld Electric Co., Ltd. applies high-quality Brass Flat Bar across various projects based on years of industry experience.
Electrical Engineering and Grounding
This is the most core application area for the Brass Flat Bar. Utilizing its stable conductivity, the Brass Flat Bar is often processed into connection bars within switch cabinets. As a vital part of the exothermic welding process, the Brass Flat Bar is used with our annual 500-ton output of welding powder to ensure permanent low-resistance connections between ground rods and stranded wires. Furthermore, using its atmospheric corrosion resistance, it is processed into support parts or down-conductor connection plates for lightning protection systems.
Architectural Decoration and Hardware Design
The golden luster of the Brass Flat Bar makes it a popular choice in modern architecture. It is frequently used for floor joints and wall decorative strips in high-end hotels or private residences to enhance visual texture. The CNC machining centers at Shaoxing Sweld Electric Co., Ltd. can precisely cut and drill Brass Flat Bar to manufacture high-strength, beautiful furniture hardware components.
Mechanical Manufacturing and Industrial Parts
Because brass has good self-lubricating properties, the Brass Flat Bar is often used to manufacture sliding guides, washers, and bushings. In instruments requiring anti-magnetic interference, it is the preferred base material for manufacturing precision bolts and pins.
Performance Demand Comparison by Application
| Application Field | Core Concern | Recommended Process | Typical Specification |
| Electrical Grounding | Conductivity/Strength | Tin Plated / Exothermic | 3mm-10mm Thick, High Copper |
| Decoration | Finish and Color | High Polish / Brushed | 10mm-50mm Wide, Tight Tol. |
| Precision Mech | Machinability/Hardness | Cold Drawn | C36000 Grade, High Hardness |
| Marine Engineering | Salt Spray Resistance | Naval Brass (C46400) | Tin-alloyed, Long Life |
Shaoxing Sweld Electric Co., Ltd. has a professional team of over 50 members to ensure on-time delivery of large orders. Relying on our 7 CNC centers, we can complete Brass Flat Bar mold design and manufacturing within 24 hours based on your drawings. We hold export licenses for exothermic welding molds and "dangerous package" certificates for powder, ensuring all products comply with ISO9001 and other certifications.
How to Choose the Right Brass Flat Bar Specification
Choosing the correct Brass Flat Bar specification is key to ensuring project safety and reducing costs. As a professional electrical hardware manufacturer, Shaoxing Sweld Electric Co., Ltd. suggests considering dimensional tolerances, temper hardness, and environmental adaptability.
Key Specification Parameters
Dimensional Accuracy (Thickness and Width): The specification of a Brass Flat Bar is usually expressed as "Thickness x Width." In grounding systems, the cross-sectional area directly affects current-carrying capacity. Shaoxing Sweld Electric Co., Ltd. provides full-size customization from micro-electronic components to large industrial grounding bars.
Material Hardness (Temper): Soft (O60 Annealed) is easy to bend and shape, suitable for complex wiring environments. Half Hard (H02) provides the most comprehensive performance and is the first choice for Shaoxing Sweld Electric Co., Ltd. when producing electrical connectors. Hard (H04) has extremely high structural strength, suitable for support structures.
Length Tolerance: Industry standards allow minor deviations, but for Brass Flat Bar requiring precision fitting, we control length and hole position tolerances within a very small range through our CNC centers.
Brass Flat Bar Selection Reference Table
| Specification Type | Thickness (mm) | Width (mm) | Hardness (HRB) | Suggested Scenario |
| Thin Decorative | 1.0 - 3.0 | 10 - 60 | 50 - 65 | Furniture Inlays, Trims |
| Standard Electrical | 3.0 - 8.0 | 20 - 100 | 70 - 85 | Grounding Plates, Switches |
| Heavy Industrial | 10.0 - 25.0 | 40 - 150 | 80 - 95 | Busbars, Heavy Machinery |
| Precision Custom | Per Drawing | Per Drawing | As Needed | CNC Parts, Special Molds |
At the 3,000-square-meter factory of Shaoxing Sweld Electric Co., Ltd. in Shengzhou, we not only stock standard Brass Flat Bar but also commit to "real-time design and manufacturing." With a daily capacity of 180 sets of exothermic welding molds, we can rapidly process Brass Flat Bar into the specific geometry you need. Our products are ISO9001, ISO14001, and ISO45001 certified. For Brass Flat Bar used in lightning protection, we simulate extreme current load tests to ensure no deformation occurs during actual operation.
FAQ
Q1: Why prioritize Brass Flat Bar over ordinary steel in electrical grounding projects?
While steel is cheaper, the Brass Flat Bar offers significant advantages. First is Conductivity: brass conductivity is much higher than steel, allowing it to discharge lightning current more rapidly. Second is Corrosion Resistance: steel rusts easily, leading to connection failure, while the Brass Flat Bar remains stable in soil and atmosphere. Finally, Bond Quality: the exothermic welding powder from Shaoxing Sweld Electric Co., Ltd. creates a molecular-level weld with the Brass Flat Bar, ensuring contact resistance remains near zero.
Q2: Is the Brass Flat Bar suitable for exothermic welding?
Very much so. Shaoxing Sweld Electric Co., Ltd. produces 500 tons of exothermic welding powder annually. We have optimized our formulas specifically for the metallurgical characteristics of the Brass Flat Bar. Under high welding temperatures, our Brass Flat Bar demonstrates excellent shape stability.
| Connection Method | Contact Resistance | Tensile Strength | Corrosion Resistance | Service Life |
| Mechanical Bolt | High and Unstable | Dependent on Bolt | Prone to Crevice Corrosion | 5-10 Years |
| Exothermic (Sweld) | Extremely Low | Equal to Base Metal | Permanently Sealed | 30+ Years |
Q3: How do I prevent the Brass Flat Bar from discoloring during storage or use?
Brass contains copper, which naturally oxidizes in humid air. Shaoxing Sweld Electric Co., Ltd. can provide tin plating, passivation, or clear lacquer coating when delivering precision Brass Flat Bar connectors. For installed decorative brass, simply wiping with a neutral cleaner periodically will maintain its luster.
Q4: Can you process non-standard Brass Flat Bar sizes based on drawings?
Yes. This is the core advantage of Shaoxing Sweld Electric Co., Ltd. We own 7 high-speed CNC machining centers. Whether it is complex hole punching, bending, or special cross-sectional shapes, we provide real-time design and precision manufacturing. Our daily capacity reaches 180 sets of molds and matching components, allowing us to respond flexibly to urgent orders.
Q5: Do your products have relevant export qualifications?
All our Brass Flat Bar components and electrical connectors have passed strict testing by national certification laboratories. Shaoxing Sweld Electric Co., Ltd. has passed ISO9001, ISO14001, and ISO45001 certifications. We hold "dangerous package" certificates for welding powder and export licenses for molds, ensuring products circulate globally in a compliant and safe manner. Our product line includes ground rods, ground wires, stranded wires, all kinds of electrical hardware connection parts, and lightning rods.
