U.C. Metal supplies high-quality brass strip coils and sheets for electrical contacts, automotive terminals, electronic connectors, architectural hardware, and precision stamped parts. All materials are sourced from reputable primary mills and supported by our in-house coil slitting and cut-to-length shearing capabilities in Sam Phran, Nakhon Pathom.
Primary Brass Grades
JIS C2680 (65/35), JIS C2801 (60/40), JIS C2600 (70/30 Cartridge Brass), JIS C2720
Available Tempers
Annealed (O), 1/4H, 1/2H, 3/4H, H, EH, SH depending on deep-drawing or spring requirements
Available Dimensions
Strip: 0.1 mm – 3.0 mm (Width: 4 mm – 1220 mm) · Sheet: 0.2 mm – 3.0 mm (up to 1220 × 3500 mm)
Chemical Composition
Chemical composition limits according to verified company technical specifications (values in weight %):
| Element | C2680 | C2801 | C2600 | C2720 |
|---|---|---|---|---|
| Copper (Cu) | 64.0 ~ 68.0 % | 59.0 ~ 62.0 % | 68.5 ~ 71.5 % | 62.0 ~ 64.0 % |
| Zinc (Zn) | Remaining | Remaining | Remaining | Remaining |
* Lead (Pb) ≤ 0.05%, Iron (Fe) ≤ 0.05% as impurity limits per standard commercial grades.
Mechanical Properties & Hardness (Temper) Guide
Mechanical properties and hardness ranges across standard temper conditions (JIS H3100 reference):
| Grade | Temper | Hardness (HV) | Tensile Strength (N/mm²) | Elongation (%) |
|---|---|---|---|---|
| C2600/C2680 | Soft | ≤ 85 | ≥275 | ≥35 |
| 1/4H | 90 ~ 110 | 325~420 | ≥30 | |
| 1/2H | 110 ~ 130 | 355~450 | ≥23 | |
| 3/4H | 125 ~ 145 | 375~490 | ≥10 | |
| H | 140 ~ 160 | 410~540 | — | |
| EH | 160 ~ 180 | 520~620 | — | |
| SH | 170 ~ 190 | 570~670 | — | |
| C2720 | Soft | ≤ 85 | ≥275 | ≥40 |
| 1/4H | 95 ~ 115 | 325~410 | ≥35 | |
| 1/2H | 115 ~ 135 | 355~440 | ≥28 | |
| H | 140 ~ 160 | ≥410 | — | |
| C2801 | Soft | ≤ 85 | ≥325 | ≥35 |
| 1/4H | 115 ~ 135 | 355~440 | ≥25 | |
| 1/2H | 130 ~ 150 | 410~490 | ≥15 | |
| H | 160 ~ 180 | ≥470 | — |
International Standards Reference
JIS is the primary reference. The designations listed from the manufacturer’s reference table are starting points for enquiry, not a guarantee of substitution. Before ordering, confirm the applicable standard edition, product form, composition, temper, and test conditions. “–” means not verified here; it does not mean that no equivalent exists.
| JIS | China | ISO | UNS |
|---|---|---|---|
| C2600 | H70 | CuZn30 | C26000 |
| C2680 | H65 | CuZn35 | C26800 |
| C2720 | H63 | CuZn37 | C27200 |
| C2801 | H62 | CuZn40 | C28000 |
Source: Jintian Group, undated “Contents of Copper & Alloy Strips and Corresponding Standards.” These are catalogue references, not equivalence guarantees.
Supply Dimensions & Available Formats
- Strip / Slit Coil: Thickness: 0.1 mm – 3.0 mm · Width: 4 mm – 1220 mm · Inner Diameter (ID): 200 mm, 300 mm, 400 mm, 500 mm.
- Sheet / Plate: Thickness: 0.2 mm – 3.0 mm · Width: up to 1220 mm · Length: up to 3500 mm.
- Custom Processing: Precision coil slitting and cut-to-length shearing according to order requirements.
Hull Cell Electroplating Test Panels
Brass is used as a cathode test panel in Hull Cell testing to evaluate plating bath performance and deposit appearance. Please send your required panel dimensions, thickness, grade and surface requirements to our sales team for confirmation.
