Description
Atomfair Brass Sheet – International Product Specification
Product Overview
Atomfair brass sheets are precision-manufactured using high-purity electrolytic copper, zinc, and selected trace elements. The production process adheres to strict quality control standards, covering ingot casting, hot rolling, cold rolling, heat treatment, surface cleaning, precision cutting, finishing, and final packaging. These brass sheets exhibit exceptional plasticity, reliable mechanical properties, superior corrosion resistance, and excellent tin-plating adaptability, making them a preferred choice across electrical, automotive, communications, hardware, and decorative industries globally .
Key Technical Specifications
1. Chemical Composition
Unit: %, Maximum Value. All compositions comply with relevant international standards (ASTM B36/B36M-23) .
| Alloy Designation | Cu Content (%) | Fe Max (%) | Pb Max (%) | Ni Max (%) | Zn Content (%) | Total Impurities Max (%) |
|---|---|---|---|---|---|---|
| C21000 (CuZn5) | 95.0-97.0 | 0.10 | 0.03 | 0.5 | Remainder | 0.3 |
| C22000 (CuZn10) | 88.0-91.0 | 0.10 | 0.03 | 0.5 | Remainder | 0.3 |
| C23000 (CuZn15) | 84.0-86.0 | 0.10 | 0.03 | 0.5 | Remainder | 0.3 |
| C26000 (CuZn30) | 68.5-71.5 | 0.10 | 0.03 | 0.5 | Remainder | 0.3 |
| C26800 (Equiv. H68) | 67.0-70.0 | 0.10 | 0.03 | 0.5 | Remainder | 0.3 |
| C27000 (CuZn35) | 63.5-68.0 | 0.10 | 0.03 | 0.5 | Remainder | 0.3 |
| C27200 (CuZn37) | 62.0-65.0 | 0.15 | 0.08 | 0.5 | Remainder | 0.5 |
| C28000 (CuZn40) | 60.5-63.5 | 0.15 | 0.08 | 0.5 | Remainder | 0.5 |
2. International Standard Cross-Reference
| Primary Alloy (ASTM) | ISO Standard | JIS Standard | EN Standard |
|---|---|---|---|
| C21000 | CuZn5 | C2100 | CW501L |
| C22000 | CuZn10 | C2200 | CW502L |
| C23000 | CuZn15 | C2300 | CW503L |
| C26000 | CuZn30 | C2600 | CW506L |
| C26800 | CuZn33 | C2680 | CW507L |
| C27000 | CuZn35 | C2700 | CW508L |
| C27200 | CuZn37 | C2720 | CW509L |
| C28000 | CuZn40 | C2800 | CW510L |
3. Dimensional Specifications & Tolerances
3.1 Dimension Ranges (Unit: mm)
| Alloy Series (ASTM) | Temper | Thickness Range | Width Range | Length Range |
|---|---|---|---|---|
| C26000, C26800, C27000, C27200, C28000, H59 | HR (Hot Rolled) | 4~8 | 600~1000 | =3000 |
| C21000, C22000, C26000, C26800, C27000, C28000 | O, 1/2H, H, EH | 0.2~0.49 | 600 | 1000~2000 |
| C21000, C22000, C26000, C26800, C27000, C28000 | O, 1/2H, H, EH | 0.5~3.0 | 600~1000 | 1000~3000 |
Temper Explanation: O (Soft), 1/4H (Quarter Hard), 1/2H (Half Hard), H (Hard), EH (Extra Hard), HR (Hot Rolled) .
3.2 Dimensional Tolerances (Unit: mm)
| Thickness Range | Thickness Tolerance ± | Width Tolerance ± (Width < 400) | Width Tolerance ± (400 = Width < 600) | Width Tolerance ± (600 = Width < 1000) |
|---|---|---|---|---|
| 0.5~0.8 | 0.035 | 0.3 | 0.3 | 1.5 |
| 0.8~1.2 | 0.040 | 0.3 | 0.5 | 1.5 |
| 1.2~2.0 | 0.050 | 0.3 | 0.5 | 2.5 |
| 2.0~3.2 | 0.060 | 0.5 | 0.5 | 2.5 |
4. Mechanical Properties
| Temper | Tensile Strength (MPa) | Elongation = (%) | Vickers Hardness (HV) |
|---|---|---|---|
| O (Soft) | =290 | 35 | ? |
| 1/4H (Quarter Hard) | 325-410 | 30 | 75-125 |
| 1/2H (Half Hard) | 340-470 | 20 | 85-145 |
| H (Hard) | 390-630 | 10 | 105-175 |
| EH (Extra Hard) | =490 | 2.5 | =145 |
| HR (Hot Rolled) | ? | ? | ? |
Note: All mechanical properties are tested in accordance with ASTM B36/B36M-23 standard procedures .
Application Fields
- Electrical Industry: Ideal for manufacturing connectors, terminals, and switch components. Superior electrical conductivity and corrosion resistance ensure stable circuit operation in various environments .
- Automotive Sector: Used in radiator cores, fuel system parts, and decorative trim. Excellent mechanical properties and wear resistance enhance vehicle reliability and service life .
- Communications Field: Serves as raw material for signal transmission parts and equipment casings, supporting efficient signal transfer and reliable equipment protection .
- Hardware & Decoration Industry: Processed into hinges, locks, decorative panels, and architectural ornaments. Exceptional plasticity meets diverse customization requirements for complex shapes and finishes .
Quality Assurance
All Atomfair brass sheets undergo rigorous quality inspection throughout the production process, including chemical composition analysis, dimensional accuracy testing, mechanical property verification, and surface quality assessment. Products fully comply with ASTM B36/B36M-23, ISO, and JIS standards, ensuring consistent quality for global applications .
If you?re interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.
