Overview
H60 is a Chinese standard (GB/T 5231) wrought copper-zinc alloy containing approximately 60% copper and 40% zinc. It belongs to the brass family of alloys and is one of the standard workhorse brasses for general engineering applications. H60 offers a good balance of strength, ductility, formability,and corrosion resistance, making it suitable for deep drawing, stamping,machining, and cold forming operations. The alloy can be supplied in various tempers (soft, half-hard, hard) to suit specific application requirements.H60 corresponds approximately to UNS C27200 / C28000 in the U.S. standard and is widely used in hardware, fasteners, deep-drawn parts, decorative items, automotive components, and electrical/electronic parts.
Description (English)
H60 brass combines the high ductility of higher-copper brasses with improved strength and machinability at a more economical cost. It has good cold working characteristics, excellent polishability, and good solderability,making it suitable for a wide range of industrial and decorative applications.The alloy is non-magnetic, has good electrical and thermal conductivity,and exhibits good corrosion resistance in normal atmospheric conditions and fresh water. For marine or severe chloride environments, additional protection or higher-copper alloys are recommended.
Size Range
- Plate: thickness 0.5โ60 mm ร width โค 1200 mm ร length โค 4000 mm
- Sheet: thickness 0.2โ6.0 mm ร width โค 1200 mm
- Strip: thickness 0.05โ3.0 mm ร width โค 600 mm (coil)
Grade Specification
| System | Value |
|---|---|
| ๐จ๐ณ GB | H60 |
| ๐บ๐ธ ASTM | C28000 |
Chemical Composition
| Element | Value |
|---|---|
| Cu | 59.0โ61.0 |
| Zn | Ba |
| Fe | โค0.30 |
| Pb | โค0.50 |
| Sb | โค0.01 |
| Bi | โค0.003 |
| P | โค0.01 |
| Al | โค0.20 |
| Sn | โค0.50 |
| Mn | โค0.50 |
| Si | โค0.20 |
| Ni | โค0.50 |
| Impurities total | โค1.0 |
Mechanical Properties
| productCenter.property | Value |
|---|---|
| M (Soft) Rm (MPa) | 300โ370 |
| M (Soft) Rp0.2 (MPa) | 95โ150 |
| M (Soft) A (%) | 50โ65 |
| M (Soft) HB | 55โ70 |
| Y2 (1/2 H) Rm (MPa) | 370โ450 |
| Y2 (1/2 H)Rp0.2 (MPa) | 200โ300 |
| Y2 (1/2 H)A (%) | 25โ40 |
| Y2 (1/2 H) HB | 85โ110 |
| Y (Hard)Rm (MPa) | 450โ570 |
| Y (Hard) Rp0.2 (MPa) | 350โ500 |
| Y (Hard) A (%) | 8โ20 |
| Y (Hard) HB | 120โ150 |
| T (Extra Hard)Rm (MPa) | 570โ680 |
| T (Extra Hard)Rp0.2 (MPa) | 480โ620 |
| T (Extra Hard)A (%) | 3โ10 |
| T (Extra Hard)HB | 150โ180 |
Physical Properties
| Property | Unit | Value |
|---|---|---|
| Density | g/cmยณ | 8.40 g/cmยณ |
Applications
- Cartridge case blanks
- Deep-drawn and stamped parts
- Hardware โ hinges, locks, brackets, fasteners
- Decorative items and architectural trim
- Automotive components โ radiator cores, tanks, fittings
- Electrical โ terminals, connectors, lead frames
- Watch and clock parts
- Musical instruments โ bells, gongs, cymbals
- Sprinkler system components
- Plumbing fittings and accessories
- Lamp and lighting components
- Heat exchanger tubes (fresh water service)
- Nameplates and badges
- Jewelry and costume jewelry
- Pen and pencil components
- Zippers, snaps, eyelets
- Pinions and gears (low-load)