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Brass Hexagonal Bars
Product Overview
Brass Hexagonal Bars manufactured by R V Metal Corporation are precision-engineered solid brass profiles designed for high machinability, dimensional accuracy, and consistent metallurgical properties. Produced from premium-grade brass alloys, these hex bars are widely used in CNC machining, automatic lathe components, fasteners, electrical fittings, plumbing parts, automotive components, and architectural hardware. The hexagonal profile allows superior grip during machining, minimizes material wastage, and improves tool life, making it ideal for high-speed turning and mass production environments.
Our Brass Hexagonal Bars are available in free-cutting, leaded, lead-free, and high-strength brass grades, supplied in soft, half-hard, and hard tempers to suit diverse manufacturing requirements. With smooth surface finish, tight dimensional tolerances, and excellent corrosion resistance, these bars ensure reliable performance in both indoor and outdoor applications. R V Metal Corporation offers Brass Hex Bars in standard and customized sizes, lengths, and alloy compositions, fully compliant with ASTM, EN, IS, and DIN standards, ensuring consistent quality for domestic and international OEMs.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Form | Brass Hexagonal Bars / Hex Rods (Across Flats – AF) |
| Manufacturing Process | Hot Extrusion followed by Cold Drawing / Peeling (as applicable) |
| Material Grades | Free Cutting Brass (CuZn39Pb3 / CW614N), Leaded Brass, Lead-Free Brass, High Tensile Brass, Customized Brass Alloys |
| Copper Content (Cu) | 58% – 62% (varies by grade) |
| Zinc Content (Zn) | Balance |
| Lead Content (Pb) | 0% – 3.5% (depending on alloy and application) |
| Across Flats (AF) Size Range | 3 mm to 80 mm (custom sizes available on request) |
| Standard Lengths | 3 m, 4 m, 5 m, 6 m or Cut-to-Length as per customer requirement |
| Temper / Condition | Soft (O), Half-Hard (H02), Hard (H04 / H08) |
| Tensile Strength | 300 – 600 MPa (grade & temper dependent) |
| Yield Strength | 150 – 450 MPa (grade & temper dependent) |
| Elongation | 10% – 35% (depends on temper and alloy) |
| Hardness | 70 – 160 HB (Brinell), grade dependent |
| Machinability | Excellent (especially Free Cutting & Leaded Brass grades) |
| Surface Finish | Bright Drawn / Smooth Extruded / Peeled Finish |
| Straightness | As per EN / ASTM standards, suitable for CNC & automatic lathes |
| Dimensional Tolerances | As per ASTM B16 / B453, EN 12164, IS 319 |
| Corner Radius | Controlled & uniform for consistent AF measurement |
| Electrical Conductivity | 20 – 28 % IACS (typical) |
| Corrosion Resistance | Good resistance to atmospheric, water, and mild chemical environments |
| Testing & Inspection | Chemical Analysis, Mechanical Testing, Dimensional Inspection |
| Standards Compliance | ASTM, EN, IS, DIN, JIS (as specified) |
| Typical Applications | CNC Machined Components, Electrical Terminals, Valves, Fasteners, Plumbing Parts, Automotive & Industrial Components |
Chemical Composition
| Element | Free Cutting Brass (CuZn39Pb3 / CW614N) |
Leaded Brass (CuZn36Pb3 / CW603N) |
Lead-Free Brass (CW510L / CW511L) |
High Tensile Brass (CuZn40Mn2 / CW713R) |
|---|---|---|---|---|
| Copper (Cu) | 57.0 – 59.0 % | 60.0 – 63.0 % | 62.0 – 64.0 % | 58.0 – 61.0 % |
| Zinc (Zn) | Balance | Balance | Balance | Balance |
| Lead (Pb) | 2.5 – 3.5 % | 2.5 – 3.7 % | ≤ 0.1 % | ≤ 0.2 % |
| Iron (Fe) | ≤ 0.3 % | ≤ 0.3 % | ≤ 0.3 % | ≤ 0.5 % |
| Tin (Sn) | ≤ 0.3 % | ≤ 0.3 % | ≤ 0.3 % | ≤ 0.3 % |
| Manganese (Mn) | ≤ 0.1 % | ≤ 0.1 % | ≤ 0.1 % | 1.0 – 2.5 % |
| Nickel (Ni) | ≤ 0.3 % | ≤ 0.3 % | ≤ 0.3 % | ≤ 0.5 % |
| Aluminium (Al) | ≤ 0.05 % | ≤ 0.05 % | ≤ 0.05 % | ≤ 0.2 % |
| Other Elements | ≤ 0.2 % (total) | ≤ 0.2 % (total) | ≤ 0.2 % (total) | ≤ 0.3 % (total) |
| Applicable Standards | EN 12164, ASTM B16, IS 319 | EN 12164, ASTM B16, IS 319 | EN 12164 (Lead-Free) | EN 12164, ASTM B453 |
UNS Codes & Grades
| UNS Code | EN / DIN Designation | Common Grade Name | Typical Composition (Cu %) | Key Characteristics | Typical Applications |
|---|---|---|---|---|---|
| C36000 | CW614N | Free Cutting Brass | 57 – 59 | Excellent machinability, leaded alloy | Precision turned parts, fasteners, fittings |
| C37700 | CW617N | Forging Brass | 58 – 60 | Good hot workability, pressure-tight | Valves, plumbing components, forged parts |
| C38500 | CW608N | Architectural Brass | 57 – 59 | Good strength, moderate machinability | Hardware, architectural fittings |
| C35300 | CW603N | Leaded Brass | 60 – 63 | Balanced strength and machinability | Automotive parts, hydraulic fittings |
| C27400 | CW508L | Cartridge Brass | 63 – 65 | High ductility, good cold formability | Electrical parts, cold-formed components |
| C69300 | CW724R | Lead-Free Brass (ECO Brass) | 73 – 75 | Dezincification resistant, potable-water safe | Drinking water fittings, sanitary parts |
| C67300 | CW713R | High Tensile Brass | 58 – 61 | High strength, manganese alloyed | Marine hardware, heavy-duty components |
Mechanical, Physical & Fabrication Properties
| Property Category | Parameter | Typical Values | Remarks / Relevance |
|---|---|---|---|
| Mechanical Properties | Tensile Strength | 350 – 550 MPa | Depends on grade (Free Cutting, Forging, High Tensile) and temper |
| Yield Strength (0.2%) | 150 – 350 MPa | Higher for hard-drawn and high-tensile brass | |
| Elongation | 10 – 35 % | Good ductility for machining and cold working | |
| Hardness | 80 – 160 HB | Varies with temper: Soft (O), Half-Hard, Hard | |
| Shear Strength | 210 – 330 MPa | Important for fasteners and threaded components | |
| Physical Properties | Density | 8.4 – 8.7 g/cm³ | Slight variation based on zinc and alloying elements |
| Melting Range | 900 – 940 °C | Lower than pure copper, suitable for forging | |
| Electrical Conductivity | 20 – 28 % IACS | Lower than copper, adequate for electrical fittings | |
| Thermal Conductivity | 105 – 130 W/m·K | Good heat dissipation for industrial components | |
| Coefficient of Thermal Expansion | 19 – 21 ×10⁻⁶ /°C | Consideration for precision assemblies | |
| Fabrication Properties | Machinability | Excellent (up to 100% for leaded grades) | Ideal for CNC turning, drilling, threading |
| Cold Workability | Good | Suitable for drawing and bending (annealed condition) | |
| Hot Workability | Very Good | Preferred for forging and extrusion | |
| Weldability | Fair to Poor | Not generally recommended; brazing preferred | |
| Brazability / Solderability | Excellent | Commonly used in plumbing and electrical joints | |
| Surface Finish Capability | Excellent | Suitable for polishing, plating, and decorative finishes |
Common Names & International Identifiers
| Region / Usage | Common Name | International Identifier / Standard | Typical Composition | Remarks |
|---|---|---|---|---|
| India | Brass Hex Bar | IS 319 (Type I / Type II) | Cu 60–63%, Zn Balance | Widely used for plumbing fittings and turned components |
| USA | Free Cutting Brass Hex | ASTM B16 / UNS C36000 | Cu 60–63%, Zn ~35%, Pb 2.5–3.5% | Excellent machinability for high-speed CNC operations |
| Europe | Machining Brass Hex Bar | EN 12164 / CW614N | Cu ~57%, Zn ~40%, Pb ~3% | Standard free-cutting brass for precision components |
| Europe (Low-Lead) | Lead-Free Brass Hex | EN 12164 / CW724R | Cu ~57%, Zn ~40%, Pb ≤0.1% | Complies with drinking water and RoHS norms |
| UK | Hexagonal Brass Bar | BS EN 12164 | Cu–Zn Alloy | General engineering and architectural use |
| Germany | Sechskant Messing | DIN EN 12164 | Cu–Zn–Pb Alloy | Precision turned parts and fasteners |
| Japan | Brass Hex Rod | JIS H3250 (C3604) | Cu ~60%, Zn ~38%, Pb ~2% | High machinability, electronics and automotive parts |
| International Trade | Hex Brass Bar | ISO 1634 | Cu–Zn Alloy (Grade-Dependent) | Globally accepted reference for wrought brass bars |
Standards & International Equivalents
| Country / Region | Standard | Grade / Designation | Equivalent UNS / EN | Product Form Covered | Typical Applications |
|---|---|---|---|---|---|
| India | IS 319 | Type I / Type II | C36000 / CW614N | Hex bars, rods, sections | Plumbing parts, fasteners, turned components |
| USA | ASTM B16 | C36000 | UNS C36000 | Free-cutting hex & round bars | CNC machining, electrical fittings |
| USA | ASTM B453 | C38500 / C35300 | CW614N / CW603N | Architectural hex bars | Decorative hardware, structural parts |
| Europe | EN 12164 | CW614N / CW617N | UNS C36000 / C37700 | Hexagonal bars for machining | Valves, connectors, precision components |
| Europe | EN 12168 | CW724R | Low-lead brass equivalent | Lead-free hex bars | Potable water fittings, eco-compliant parts |
| United Kingdom | BS EN 12164 | CW614N / CW617N | C36000 / C37700 | Hex bars and profiles | Industrial and marine hardware |
| Germany | DIN EN 12164 | CW614N | UNS C36000 | Precision hex bars | High-speed machining components |
| Japan | JIS H3250 | C3604 | C36000 | Hex & round bars | Automotive, electronics machining |
| International | ISO 1634 | CuZn36Pb3 / CuZn39Pb3 | CW614N / CW617N | Wrought brass bars & rods | Global engineering and OEM supply |
Applications
| Industry / Sector | Application | Why Brass Hexagonal Bars Are Used | Typical Grades | Remarks |
|---|---|---|---|---|
| Automotive | Fuel system components, connectors, bushings | Excellent machinability, corrosion resistance, dimensional stability | CW614N, CW617N | Preferred for high-speed CNC machining |
| Electrical & Electronics | Electrical terminals, connectors, earthing parts | High electrical conductivity and easy threading | C36000, CW614N | Ensures consistent current flow and reliability |
| Plumbing & Sanitary | Valves, fittings, adapters, taps | Good corrosion resistance in water systems | CW617N, DZR grades | Lead-free options available for potable water |
| HVAC & Refrigeration | Valve bodies, couplings, distribution blocks | Pressure resistance and precise machining | CW617N | Used in both commercial and industrial HVAC |
| General Engineering | Fasteners, nuts, studs, spacers | High strength-to-weight ratio and ease of forming | C36000 | Cost-effective alternative to steel for many parts |
| Hydraulics & Pneumatics | Hydraulic fittings, manifolds, couplers | Leak resistance and excellent surface finish after machining | CW614N, CW617N | Stable under pressure and vibration |
| Marine | Pipe fittings, fasteners, marine hardware | Resistance to seawater corrosion | Naval brass variants | Often used with protective coatings |
| Furniture & Decorative | Handles, knobs, architectural fittings | Aesthetic appearance and ease of polishing | CW614N, CW612N | Supports various surface finishes and coatings |
| Industrial OEM Manufacturing | Precision machined components | Consistent mechanical properties and tight tolerances | As per customer specification | Custom sizes and lengths available |
Standard Brass Hexagonal Bars Dimensional Chart
| Brass Hexagonal Bars – Standard AF Size & Theoretical Weight Chart | |||||
|---|---|---|---|---|---|
| Across Flats (AF) | AF (mm) | Approx. Cross-Sectional Area (mm²) | Theoretical Weight (kg/m) | Theoretical Weight (kg/3 m) | Typical Supply Form |
| 6 mm AF | 6 | 23.38 | 0.199 | 0.596 | Straight bars (standard lengths) |
| 8 mm AF | 8 | 41.57 | 0.353 | 1.060 | Straight bars (standard lengths) |
| 10 mm AF | 10 | 64.95 | 0.552 | 1.656 | Straight bars (standard lengths) |
| 12 mm AF | 12 | 93.53 | 0.794 | 2.382 | Straight bars (standard lengths) |
| 14 mm AF | 14 | 127.31 | 1.083 | 3.249 | Straight bars (standard lengths) |
| 16 mm AF | 16 | 166.28 | 1.413 | 4.239 | Straight bars (standard lengths) |
| 18 mm AF | 18 | 210.44 | 1.789 | 5.367 | Straight bars (standard lengths) |
| 20 mm AF | 20 | 259.81 | 2.208 | 6.624 | Straight bars (standard lengths) |
| 22 mm AF | 22 | 314.37 | 2.672 | 8.016 | Straight bars (standard lengths) |
| 24 mm AF | 24 | 374.12 | 3.179 | 9.537 | Straight bars (standard lengths) |
| 27 mm AF | 27 | 473.30 | 4.024 | 12.072 | Straight bars (standard lengths) |
| 30 mm AF | 30 | 584.57 | 4.969 | 14.907 | Straight bars (standard lengths) |
| 32 mm AF | 32 | 664.30 | 5.653 | 16.959 | Straight bars (standard lengths) |
| 36 mm AF | 36 | 841.38 | 7.157 | 21.471 | Straight bars (standard lengths) |
| 40 mm AF | 40 | 1039.23 | 8.833 | 26.499 | Straight bars (standard lengths) |
| 46 mm AF | 46 | 1373.16 | 11.690 | 35.070 | Straight bars (standard lengths) |
| 50 mm AF | 50 | 1623.80 | 13.802 | 41.406 | Straight bars (standard lengths) |
Note: Theoretical weights are calculated using a hex area formula and an assumed brass density of 8.50 g/cm³. Actual weight can vary with alloy (Cu/Zn ratio), tolerances, and surface condition. If you want, share your exact grade (e.g., CW617N / C36000 / CuZn37) and I’ll recalibrate density and weights.
