Copper Pipes, Tubes, Coils & Fittings
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Brass Square Tubes
Product Overview
Brass square pipes manufactured by R V Metal Corporation are precision-engineered hollow sections designed for applications that demand a combination of strength, corrosion resistance, machinability, and aesthetic appeal. Produced from high-quality brass alloys, these square tubes offer excellent dimensional accuracy, uniform wall thickness, and a smooth surface finish, making them suitable for both functional and decorative uses. Brass square pipes are widely used in architectural frameworks, electrical and electronic components, heat-transfer assemblies, furniture structures, automotive parts, and industrial fabrication where reliability and form stability are critical. Available in various sizes, wall thicknesses, and tempers, R V Metal Corporation’s brass square pipes can be supplied in standard lengths or customized as per drawing, ensuring compatibility with OEM, EPC, and industrial requirements while maintaining consistent metallurgical quality and long service life.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product | Brass Square Pipes / Brass Square Tubes |
| Manufacturer / Supplier | R V Metal Corporation |
| Material Grades | Brass CZ121 / CZ122 / CZ108 / CuZn30 / CuZn37 (or equivalent as per requirement) |
| Copper Content (Cu) | 60% – 70% (depending on grade) |
| Zinc Content (Zn) | Balance |
| Form | Square Hollow Section |
| Manufacturing Process | Extruded / Drawn / Cold Worked |
| Temper | Soft (Annealed), Half Hard, Hard |
| Size Range | 6 mm × 6 mm to 100 mm × 100 mm (or as per customer specification) |
| Wall Thickness | 0.5 mm to 6.0 mm (customizable) |
| Length | Standard: 3 m, 4 m, 5 m, 6 m | Cut-to-length available |
| Surface Finish | Mill Finish, Polished, Buffed, Brushed |
| Dimensional Tolerance | As per ASTM / EN / IS standards or customer drawings |
| Density | ~8.4 – 8.6 g/cm³ (grade dependent) |
| Machinability | Excellent |
| Corrosion Resistance | Good resistance to atmospheric and mild industrial environments |
| Standards | ASTM B455 / EN 12167 / EN 12168 / IS 319 (or equivalent) |
| Testing | Chemical Analysis, Dimensional Inspection, Visual & Surface Checks |
| Applications | Architecture, Electrical, Industrial Fabrication, Furniture, Automotive Components |
| Packing | Plastic Wrapped / Wooden Crates / Palletized (Export Worthy) |
Chemical Composition
| Grade / Standard | Copper (Cu) % | Zinc (Zn) % | Lead (Pb) % | Iron (Fe) % | Other Elements % |
|---|---|---|---|---|---|
| CZ121 (EN 12167 / EN 12168) | 57.0 – 59.0 | Balance | 1.5 – 3.5 | ≤ 0.3 | ≤ 0.2 |
| CZ122 (EN 12167) | 57.0 – 59.0 | Balance | 1.0 – 2.5 | ≤ 0.3 | ≤ 0.2 |
| CZ108 (EN 12167) | 60.5 – 63.5 | Balance | ≤ 0.10 | ≤ 0.3 | ≤ 0.2 |
| CuZn30 (EN CW505L) | 69.0 – 71.0 | Balance | ≤ 0.05 | ≤ 0.1 | ≤ 0.1 |
| CuZn37 (EN CW508L) | 62.0 – 64.0 | Balance | ≤ 0.05 | ≤ 0.1 | ≤ 0.1 |
| ASTM C36000 (Free Cutting Brass) | 60.0 – 63.0 | Balance | 2.5 – 3.7 | ≤ 0.35 | ≤ 0.25 |
| IS 319 Grade I | 57.0 – 59.0 | Balance | 1.0 – 2.0 | ≤ 0.3 | ≤ 0.2 |
| IS 319 Grade II | 60.0 – 63.0 | Balance | ≤ 0.10 | ≤ 0.3 | ≤ 0.2 |
UNS Codes & Grades
| UNS Code | EN / DIN Designation | IS / ASTM Equivalent | Common Grade Name | Typical Application |
|---|---|---|---|---|
| C36000 | CW614N (EN 12164 / EN 12167) | ASTM B16 / IS 319 Gr I | Free Cutting Brass | Precision machined brass square pipes, fittings, valves, electrical components |
| C37700 | CW617N (EN 12165) | ASTM B124 / IS 319 Gr I | Forging Brass | Structural square sections, plumbing fittings, forged components |
| C28000 | CW508L (CuZn37) | ASTM B36 / IS 410 | Cartridge Brass | Architectural brass square tubes, decorative sections, fabrication work |
| C27000 | CW505L (CuZn30) | ASTM B36 | Gilding Brass | Low-lead square pipes, forming and bending applications |
| C38500 | CW608N | ASTM B455 | High Tensile Brass | Heavy-duty square brass sections, load-bearing industrial use |
| C23000 | CW502L | ASTM B36 | Red Brass | Corrosion-resistant square pipes for marine and heat exchanger use |
| C46400 | — | ASTM B21 | Naval Brass | Marine-grade square pipes, seawater and coastal applications |
Mechanical, Physical & Fabrication Properties
| Property | C36000 Free Cutting Brass |
C37700 Forging Brass |
C28000 Cartridge Brass |
C27000 Gilding Brass |
C46400 Naval Brass |
|---|---|---|---|---|---|
| Tensile Strength (MPa) | 330 – 420 | 350 – 500 | 300 – 450 | 280 – 420 | 380 – 520 |
| Yield Strength (MPa) | 125 – 200 | 150 – 280 | 110 – 220 | 100 – 210 | 160 – 300 |
| Elongation (%) | 10 – 20 | 12 – 25 | 15 – 35 | 20 – 40 | 15 – 30 |
| Hardness (HB) | 90 – 120 | 100 – 140 | 80 – 120 | 70 – 110 | 110 – 150 |
| Density (g/cm³) | 8.47 | 8.44 | 8.53 | 8.55 | 8.50 |
| Thermal Conductivity (W/m·K) | 120 | 115 | 130 | 135 | 110 |
| Electrical Conductivity (% IACS) | 26 – 28 | 25 – 27 | 28 – 32 | 30 – 35 | 22 – 25 |
| Machinability (%) | 100 (Benchmark) | 85 | 60 | 55 | 70 |
| Formability | Fair | Good | Excellent | Excellent | Good |
| Brazing / Soldering | Excellent | Excellent | Excellent | Excellent | Good |
| Weldability | Limited | Moderate | Good | Good | Moderate |
| Corrosion Resistance | Moderate | Good | Good | Good | Excellent (Marine) |
Common Names & International Identifiers
| UNS Code | Common Name | ASTM Designation | EN / DIN Equivalent | IS / BIS Equivalent | JIS Equivalent | Typical Identification / Trade Name |
|---|---|---|---|---|---|---|
| C36000 | Free Cutting Brass | ASTM B16 / B453 | EN CW614N (DIN CuZn39Pb3) |
IS 319 Type I | C3604 | Machining Brass, Leaded Brass |
| C37700 | Forging Brass | ASTM B124 / B455 | EN CW617N (DIN CuZn40Pb2) |
IS 6912 | C3771 | Hot Forging Brass |
| C28000 | Cartridge Brass | ASTM B36 / B134 | EN CW626N (DIN CuZn30) |
IS 410 | C2801 | Deep Drawing Brass |
| C27000 | Gilding Brass | ASTM B36 | EN CW508L (DIN CuZn37) |
IS 410 | C2700 | Yellow Brass |
| C46400 | Naval Brass | ASTM B21 / B171 | EN CW712R (DIN CuZn39Sn1) |
IS 291 | C4641 | Marine Brass, Admiralty Brass |
| C23000 | Red Brass | ASTM B36 | EN CW502L (DIN CuZn15) |
IS 410 | C2300 | High Copper Brass |
Standards & International Equivalents
| Region / Country | Standard | Grade / Designation | Equivalent UNS Code | Typical Application Reference |
|---|---|---|---|---|
| USA | ASTM B16 / ASTM B455 | Free Cutting Brass | C36000 | Machined brass square tubes, precision components |
| USA | ASTM B124 | Forging Brass | C37700 | Structural and forged brass square sections |
| Europe | EN 12164 / EN 12165 | CW614N (CuZn39Pb3) | C36000 | Machining-grade square brass pipes |
| Europe | EN 12165 | CW617N (CuZn40Pb2) | C37700 | Forging & pressure-rated brass sections |
| Germany | DIN 17660 / DIN EN 12165 | CuZn39Pb3 / CuZn40Pb2 | C36000 / C37700 | Architectural & industrial brass profiles |
| India | IS 319 | Type I / Type II | C36000 / C28000 | General-purpose brass square pipes |
| India | IS 6912 | Forging Brass | C37700 | Heavy-duty structural brass tubes |
| Japan | JIS H3250 | C3604 / C3771 | C36000 / C37700 | Precision and OEM brass square sections |
| International | ISO 426-1 | CuZn Alloys | Various | Global trade & cross-border specifications |
Applications
| Industry / Sector | Application Area | Why Brass Square Pipes Are Used | Typical Grades Used |
|---|---|---|---|
| Architecture & Interiors | Decorative frameworks, railings, partitions | Excellent surface finish, corrosion resistance, aesthetic appeal | C26000, C28000, CW617N |
| Furniture Manufacturing | Table frames, chair structures, designer furniture | High strength-to-weight ratio, easy fabrication, premium look | C36000, CW614N |
| Electrical Industry | Bus supports, electrical enclosures, earthing frames | Good electrical conductivity and mechanical stability | C26000, C26800 |
| Plumbing & Sanitary | Support frames, valve housings, plumbing assemblies | Corrosion resistance in water environments, machinability | C37700, CW617N |
| HVAC & Refrigeration | Structural supports, casing frameworks | Thermal stability, resistance to vibration and moisture | C28000, C36000 |
| Automotive | Trim components, structural brackets | Good formability, wear resistance, dimensional accuracy | C36000, C37700 |
| Industrial Machinery | Machine frames, guide rails, protective housings | High machinability, durability under load | C36000, CW614N |
| Marine & Coastal | Decorative and structural components | Excellent resistance to corrosion in saline environments | C26000, C28000 |
| OEM & Custom Fabrication | Custom-engineered square brass sections | Precise dimensional control and alloy flexibility | As per drawing / specification |
Standard Brass Square Tubes Dimensional Chart
| Standard Brass Square Tubes – Dimensional & Theoretical Weight Chart | |||
|---|---|---|---|
| Square Size (OD × OD) (mm) | Wall Thickness (mm) | Inside Size ID (Approx.) (mm) | Theoretical Weight (kg/m) |
| 10 x 10 | 1.0 | 8.0 | 0.306 |
| 10 x 10 | 1.5 | 7.0 | 0.382 |
| 12 x 12 | 1.0 | 10.0 | 0.374 |
| 12 x 12 | 1.5 | 9.0 | 0.467 |
| 15 x 15 | 1.0 | 13.0 | 0.476 |
| 15 x 15 | 1.5 | 12.0 | 0.595 |
| 15 x 15 | 2.0 | 11.0 | 0.714 |
| 20 x 20 | 1.0 | 18.0 | 0.646 |
| 20 x 20 | 1.5 | 17.0 | 0.808 |
| 20 x 20 | 2.0 | 16.0 | 0.969 |
| 20 x 20 | 3.0 | 14.0 | 1.292 |
| 25 x 25 | 1.5 | 22.0 | 1.042 |
| 25 x 25 | 2.0 | 21.0 | 1.251 |
| 25 x 25 | 3.0 | 19.0 | 1.669 |
| 30 x 30 | 1.5 | 27.0 | 1.275 |
| 30 x 30 | 2.0 | 26.0 | 1.530 |
| 30 x 30 | 3.0 | 24.0 | 2.040 |
| 40 x 40 | 2.0 | 36.0 | 2.040 |
| 40 x 40 | 3.0 | 34.0 | 2.720 |
| 50 x 50 | 2.0 | 46.0 | 2.550 |
| 50 x 50 | 3.0 | 44.0 | 3.400 |
Note: Weights are theoretical and calculated using an assumed brass density of ~8.50 g/cm³. Actual weight may vary based on alloy grade, dimensional tolerances, and finish. Custom sizes, lengths and tolerances can be supplied on request.
