Aluminium discs / circle
Applied in civil pan / pot / kettle cookware
Surface: Optional
Front side: Teflon, from Dupont, a Consumer Nonstick Coatings, anti-adhesive;
Back side: Food contact grade color painting
Alloy: 1050, 1100, 1200, 3003 commonly used
Temper: Soft, O, Annealed, minimum elongation: 35%
Thickness: 0.1-6.0mm; Diameter(mm): 50-1500mm
To guarantee its non-stick properties and deep drawing properties,
The flatness standard of aluminium discs will strictly follow the table below:
| thickness/mm | Total unflatness d/D |
Partial unflatness (R> 300mm) d/R |
| > 0.2~0.5 | negotiable | |
| > 0.5~3.0 | ≤ 0.5% | ≤ 0.4% |
| > 3.0~6.0 | ≤ 0.4% | ≤ 0.35% |
| > 6.0~12.0 | ≤ 0.4% | ≤ 0.3% |
| > 12~50 | ≤ 0.4% | — — |
| > 50~150 | ≤ 0.3% | — — |
| Note: D is the diameter of circle, R is random chord, d is the wave height | ||
Also provide stainless steel SUS304 circle with aluminium core for making composite pan
