Round hollows with inner nocks
Cast Specification
Size/weight
Materials/alloys
Application
Cast Specification
Cast Specification
| Sizes (mm) | Tolerances (mm) | Max length till (m) | Straightening (rolling) | Straightness (mm/m) | Min wall thickness (%) |
|---|---|---|---|---|---|
| Outer diameter as per KMM standard program for round hollows. Inner size – to agree with costumer. | To agree with costumer. | 4,05 ±0,05 | Yes | 1,0 | - |
Size/weight
Size/weight
| Delivery sizes Ømm | Ra/Rb | A | Delivery weigh | |
|---|---|---|---|---|
| d | D | kg/m | ||
| 25 | 42 | 2.2 | 20.6 | 9.1 |
| 22 | 39 | 2.2 | 17.6 | 8.6 |
| 26 | 35 | 2.2 | 21.6 | 4.03 |
| 19 | 41 | 2.2 | 14.6 | 9.43 |
Materials/alloys
Materials/alloys
| Tin bronze | KMM main alloy | Leaded tin bronze | High-leaded tin bronze | Leaded bronze / Gun Metal | Low lead alloy for drinking water |
|---|---|---|---|---|---|
| CuSn10Zn2-C CuSn11P-C CuSn12-C CuSn12Ni2-C CuSn10-C | CuSn5Zn5Pb2-C | CuSn11Pb2-C CuSn7Zn2Pb3-C | CuSn7Zn4Pb7-C CuSn5Pb9-C CuPb10Sn10-C CuSn7Pb15-C CuSn6Pb16-C | CuSn5Zn5Pb5-C CuSn3Zn8Pb5-C | CuSn4Zn2PS-C CuSi4Zn9MnP-C CuNi7Si2 |
Application
Application
- plain copper sanitary pipes;
- pipe fittings;
- bathroom fixtures;
- tubes for boilers and
- boiler accessories
- designed for potable water
- low-pressure valves,
- pipe fittings,
- gasoline and oil-line fittings,
- fire extinguishing equipment fittings