What is H62 brass?
H62 brass is a copper–zinc (Cu–Zn) alloy commonly used for general engineering, hardware, decorative parts, and many formed components.
The "H" is commonly used in Chinese naming for brass.
"62" refers to the approximate copper content (around 62%).
H62 brass alloy hardness
| Temper Designation (ASTM/GB) | Condition | Hardness (HV) | Hardness (HB) | Hardness (HRB) | Typical Application State |
|---|---|---|---|---|---|
| O (Annealed) | Soft, fully recrystallized | 70 – 100 HV | ~65 – 85 HB | ~55 – 70 HRB | As-supplied for further cold working or hot forming. |
| H02 (¼ Hard) | Lightly cold worked | 95 – 120 HV | ~80 – 100 HB | ~70 – 80 HRB | A good balance of strength and formability. |
| H04 (½ Hard) | Medium cold worked | 110 – 135 HV | ~95 – 115 HB | ~78 – 88 HRB | Common for many structural and mechanical parts. |
| H06 (Hard) | Heavily cold worked | 130 – 160 HV | ~110 – 135 HB | ~85 – 95 HRB | High-strength applications, limited further forming. |
| H08 (Spring Hard) | Extra hard, full hard | ≥ 150 HV | ≥ 130 HB | ≥ 92 HRB | Used for springs, clips, and high-stress components. |
H62 brass chemical composition
H62 is commonly specified around:
Cu (Copper): 61.5% – 63.5%
Zn (Zinc): remainder
Pb (Lead): typically very low (often controlled to <0.08%)
H62 brass properties
Physical properties
Density: ~8.5–8.7 g/cm³
Thermal conductivity: ~120 W/m·K
Electrical conductivity: ~27% IACS (typical reference value)
Mechanical properties
Tensile strength: ~372–540 MPa
Yield strength: ~225–360 MPa
Elongation: ~24–45% (depends strongly on temper)
Hardness: ~90–120 (Vickers, typical reference)
Processing characteristics
Cold working: very good (bending, drawing, stamping)
Hot working: workable in typical hot-working temperature windows (process-controlled)
Machinability: moderate (fine for standard turning/milling; not "free-machining" like 360)
Corrosion: generally good in many environments, but brass families can face dezincification risks in some hot/chloride waters unless specified/controlled
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H62 brass equivalents
| Standard system | Often-listed equivalent |
|---|---|
| China (GB) | H62 |
| Japan (JIS) | C2801 |
| Germany (DIN) | CuZn37 |
| USA (ASTM) | C27400 |
| Europe (EN) | CW508L |
Common uses of H62 brass
H62 shows up across industries because it's a balanced alloy:
Electrical & electronics: connectors, terminals, switch parts, conductive housings
Plumbing & general hardware: hardware fittings, brackets, decorative fasteners, covers
Automotive / industrial components: general brass components where forming + durability matters
Decorative parts: architectural hardware, trim parts, nameplates, ornaments
Our factory
Our modern production base is equipped with advanced full-process production lines dedicated to the manufacturing of copper and copper alloy products. The factory features precision smelting, continuous casting, high-pressure extrusion, high-speed rolling, and precision cutting equipment, ensuring strict control over every step from copper ingot to finished product. We possess strong R&D and customization capabilities, enabling us to produce various specifications and tempers of copper tubes, plates, rods, wires, and ultra-thin foils in accordance with international standards (such as ASTM, EN, JIS) and specific customer requirements. Our products are widely used in various industries, including refrigeration, electronics, power, transportation, and construction.
Copper product packaging
We fully understand that secure packaging is essential for the flawless delivery of products. Tailored to the characteristics of different products, we employ customized professional packaging solutions: copper tubes and rods are typically secured with anti-rust inner liners and sturdy wooden crates or iron-frame boxes to prevent impact and deformation during transit; copper plates, strips, and foils are first covered with protective film, placed in a dry environment, wrapped with waterproof paper and moisture-proof materials, and finally packed into reinforced plywood crates or steel coil boxes to effectively resist moisture and mechanical damage; wires are neatly wound onto wooden or steel reels and firmly strapped. All packaging is clearly labeled and compliant with export standards, ensuring that your goods maintain their excellent factory condition even after long-distance sea transportation and multiple handlings.
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