Bar end configuration, copper and copper alloys, EN 12164
Shape of bar ends for copper alloys, EN 12164
Drawn copper alloy bars with diameter and/or width across flats between 2 mm and 30 mm inclusive are supplied with one chamfered end - Type A and the other pointed end - Type B, according to the dimensions in the table.
1. Bar ends, Type A - chamfered
2. Bar ends, Type B - pointed
Indicative dimensions of bar ends
Dimensions in millimetres
| Specified diameter, D | Type A - Chamfered end lengtha, L | Type B - Pointed end lengthb, L | |||
|---|---|---|---|---|---|
| or width across flats W | |||||
| over | up to and including | min. | max. | min. | max. |
| 2 | 5 | 0.2 | 1 | 1.5 | 4 |
| 5 | 10 | 0.2 | 1.5 | 2 | 7 |
| 10 | 20 | 0.2 | 2 | 3 | 10 |
| 20 | 30 | 0.2 | 3 | 4 | 12 |
| a Chamfering is applied for burr removal. | |||||
| b Pointing is applied to bars for guiding during feeding through automatic machines. | |||||
The shape of bar ends for dimensions above 30 mm diameter or width across flats shall be supplied at the supplier’s discretion.