What is H62 brass?
H62 brass rod is a common brass material based on a copper-zinc alloy, with an average copper content of 62% and zinc as the balance, containing trace impurities. This material possesses both good mechanical and machinability, excellent plasticity in the hot state, and fair plasticity in the cold state. It has good machinability, weldability, and corrosion resistance, but there is a risk of corrosion cracking. Due to its low price and wide applicability, it is commonly used to manufacture load-bearing parts such as pins, rivets, washers, nuts, conduits, pressure gauge springs, screens, and radiators.
Material Identification & Standards
| Property | Value / Designation |
|---|---|
| Common Name | H62 Brass / Muntz Metal (general type) |
| China (GB/T) | H62 |
| United States (UNS/ASTM) | C28000 |
| European Union (EN) | CuZn37 |
| Japan (JIS) | C2800 |
| ISO | CuZn37 |
Chemical Composition (Nominal)
| Element | Content (%) | Note |
|---|---|---|
| Copper (Cu) | 60.5 - 63.5 | Main constituent |
| Zinc (Zn) | Balance | 36.5 - 39.5% (approx.) |
| Lead (Pb) | ≤ 0.08 | Intentionally low, "lead-free" |
| Iron (Fe) | ≤ 0.15 | - |
| Other Impurities | ≤ 0.5 | Total |
Mechanical Properties (Annealed Condition)
| Property | Typical Value | Test Standard / Condition |
|---|---|---|
| Tensile Strength | ≥ 370 MPa | - |
| Yield Strength (0.2% Offset) | ≥ 150 MPa | - |
| Elongation (in 50mm) | ≥ 20% | - |
| Hardness | ~ 65 HRB | Rockwell B Scale |
| Machinability Rating | ~ 40% | Compared to free-cutting brass (C36000 = 100%) |
Physical & Intrinsic Properties
| Property | Typical Value |
|---|---|
| Density | 8.43 g/cm³ |
| Melting Point | 905 - 915 °C |
| Electrical Conductivity | 28 % IACS |
| Thermal Conductivity | 115 W/(m·K) |
| Coefficient of Thermal Expansion | 20.8 x 10⁻⁶ /K (20-300°C) |
Manufacturing & Performance Characteristics
| Category | Description |
|---|---|
| Key Features | Good combination of strength and ductility, excellent cold workability, good hot forgeability, attractive gold-yellow color. |
| Corrosion Resistance | Good resistance to atmospheric corrosion and fresh water. Fair resistance to dezincification in certain waters. |
| Fabrication | Excellent for stamping, drawing, bending, and forging. Can be soldered, brazed, and welded readily. |
| Common Applications | Architectural hardware, locks, hinges, electrical connectors, radiator cores, plumbing fixtures, valves, fasteners, decorative trim. |
| Heat Treatment | Not hardenable by heat treatment. Can be stress-relief annealed at 260-315°C after severe cold working. |
Typical Available Forms & Size Ranges
| Product Form | Typical Size Range (We Supply) | |
|---|---|---|
| Strip / Coil | Thickness: 0.05 - 3.0 mm | Width: Up to 600 mm |
| Sheet / Plate | Thickness: 0.5 - 50 mm | Width: Up to 1200 mm |
| Rod / Bar | Diameter: 3 - 150 mm | Length: Straight bars or coils |
| Wire | Diameter: 0.5 - 12 mm | - |
| Tube / Pipe | Outer Diameter: 6 - 200 mm | Wall Thickness: Custom |
Our product range
1. Pure Copper (Sheet, Tube, Wire)
Primary Grades: T1 (C11000), T2 (C10100). We prioritize C11000 (T1) for its excellent conductivity.
Standards: ASTM B152 (Sheet), ASTM B75/B88 (Tube), ASTM B1/B3 (Wire), EN, JIS, GB/T.
Typical Sizes:
Tube: OD 6mm – 200mm.
Sheet: Thickness 0.5mm – 50mm.
Wire: Diameter 1.0mm – 10mm.
2. Phosphorus Deoxidized Copper (Tube, Sheet)
Primary Grades: TP1 (C12000 / CW023A), TP2 (C12200). Ideal for welding and plumbing.
Standards: ASTM B188, ASTM B75/B88, EN 12451, JIS H3300.
Typical Sizes:
Tube: OD 8mm – 150mm.
Sheet: Thickness 1.0mm – 30mm.
3. Brass (Strip & Coil)
Primary Grades: H96, H68, H62 (CuZn37 / C28000). We strongly recommend H62 for its excellent balance of strength and machinability.
Standards: ASTM B36, ASTM B134, EN 1652, JIS H3100.
Typical Sizes:
Strip/Coil: Thickness 0.1mm – 3.0mm, Width up to 600mm.
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Our factory
Our facility is equipped with industry-advanced continuous casting and rolling production lines, precision rolling mills, multi-pass drawing units, and automated forming equipment, enabling efficient and stable transformation from copper rods to finished products. Our core machinery allows us to flexibly manufacture a full range of grades-including pure copper (e.g., C11000/T1), phosphorus deoxidized copper (e.g., C12200/TP2), and brass (e.g., H62)-in the form of sheets, tubes, rods, strips, and wires. We also provide tailored processing services such as cutting, slitting, and precision finishing.
