Product Description
Brass strip for tube and electronic application -C26000(H70)
· Suitable for industrial heat exchange field, electronic field, such as: radiator cooling sheet, water chamber and motherboard, terminal connector, etc
Product Parameters
| Alloy | National brand number | UNS, USA | EN Standard brand |
| CuZn30 | H70 | C26000 | CW505L |
| CuZn33 | H68 | C26200 | CW506L |
| CuZn36 | H65 | C26800 | CW507L |
| CuZn37 | H63 | C27400 | CW508L |
| Chemical composition | ||||
|---|---|---|---|---|
| Brand | Chemical composition (mass fraction)% | |||
| Cu | Fe | Pb | Zn | |
| H70a | 68.5-71.5 | ≤0.10 | ≤0.03 | Rem |
| H68 a | 67.0-70.0 | ≤0.10 | ≤0.03 | Rem |
| H65 a | 63.0-68.5 | ≤0.07 | ≤0.09 | Rem |
| H63 a | 62.0-65.0 | ≤0.15 | ≤0.08 | Rem |
| a Cu plus the sum of the listed elements≥99.7% | ||||
Parameters of different thickness intervals：
| Thickness one | |||
|---|---|---|---|
| Thickness，mm | Tolerance，mm | Thickness，inch | Tolerance，inch |
| 0.04- 0.05 (0.05) - 0.15 (0.15) - 0.20 (0.20) - 0.30 (0.30) - 0.40 (0.40) - 0.50 |
± 0.003 ± 0.005 ± 0.007 ± 0.010 ± 0.012 ± 0.015 |
0.00138 - 0.0020 (0.0020) - 0.0039 (0.0059) - 0.0079 (0.0079) - 0.0098 (0.0098) - 0.0157 (0.0157) - 0.0197 |
± 0.00012 ± 0.00020 ± 0.00028 ± 0.00039 ± 0.00047 ± 0.00059 |
| Minimum thickness, rolled state 0.04mm 0.001575 inch Minimum thickness, rolled state 0.04mm 0.001575 inch |
|||
| Width | |||
|---|---|---|---|
| Width，mm | Tolerance，mm | Width，inch | Tolerance，inch |
| 15 - 100 (100) - 200 (200) - 250 |
± 0.075 ± 0.1 ± 0.15 |
0.6 -4 (4) - 8 (8) -10 |
± 0.003 ± 0.004 ± 0.006 |
| Note 1: If the demander requires one-way deviation, it shall be indicated in the contract (or purchase order), and the allowable deviation value shall be twice of the value in the table. Note 2: Other foils with allowable deviation may be supplied upon agreement of both parties. |
|||
| Side bending, maximum side bending/Copper strip foil per 2 m (50inch) | |||
|---|---|---|---|
| Width，mm | Arc height，mm | Width，inch | Arc height，inch |
| 15 -30 (30) - 100 (100) -250 |
10 8 6 |
0.6 - 1.2 (1.2)-4 (4) - 10 |
0.4 0.3 0.24 |
| Mechanical property | ||||
|---|---|---|---|---|
| Brand | State | Tensile strength | Hardness，HV | |
| MPa | Ksi | |||
| H70 H68 H65 H63 |
H02 | 380-460 | 55-67 | 115-160 |
| H04 | 440-540 | 64-78 | 135-185 | |
| H06 | 570-670 | 83-97 | 180-225 | |
| Note: Supply of foil for other properties by agreement. | ||||
| Thickness two | |||||
|---|---|---|---|---|---|
| Thickness，mm | Allowable thickness deviation，mm | Thickness，inch | Allowable thickness deviation，inch | ||
| Width 50-200 | Width （200）-400 | Width 2-8 | Width （8）-16 | ||
| (0.5) - 0.8 (0.8) - 1.2 (1.2) - 2.0 |
± 0.025 ± 0.030 ± 0.040 |
± 0.030 ± 0.035 ± 0.045 |
（0.0196）-0.0315 （0.0315）-0.0472 （0.0472）-0.0787 |
±0.0010 ±0.0012 ±0.0016 |
±0.0012 ±0.0014 ±0.0018 |
| Width | ||||||
|---|---|---|---|---|---|---|
| Width range | 50-200 mm | 2-8 inch | （200）-300 mm | (8)-12 inch | （300）-450 mm | (12) -18 inch |
| Permissible width deviation | ±0.3 | ±0.012 | ± 0.4 | ±0.016 | ±0.6 | ±0.024 |
Note 1: If the demander requires one-way deviation, it shall be indicated in the contract (or purchase order), and the allowable deviation value shall be twice of the value in the table. Note 2: Other products with allowable deviation can be provided by agreement of both parties. |
||||||
| Side bending, maximum side bending/copper strip per 2 meters (50inch) | |||
|---|---|---|---|
| Width，mm | Arc height，mm | Width，inch | Arc height，inch |
| 50 -100 | 12 | 2 - 4 | 0.472 |
| （100）-450 | 8 | （4）-18 | 0.315 |
| Note: Under different scale length (L), the side bending value (h) can be equivalent converted according to the formula: h=(L÷2)2×4(mm). | |||
| Mechanical property | |||||
|---|---|---|---|---|---|
| Brand | State | Tensile strength | Elongation A50 %, not less than | Hardness, HV | |
| MPa | Ksi | ||||
| H70 H68 H65 H63 |
O60 | 310- 380 | 41-53 | 45 | 65 -85 |
| O70 | 280 -350 | 60-75 | 50 | 55 -75 | |
| Note: Products with other properties can be supplied by agreement of both parties. | |||||
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