Class 8ТУ 25.93.17-002-06515248-2026
Chain 7×21
Calibrated high-strength round-link lifting chains. Strength class 8. Size 7×21 mm, manufactured to ТУ 25.93.17-002-06515248-2026.
Designation decoding
Chain 7×21-Т8
- 7×21
- gauge × pitch, mm
- Т8
- strength class
The chain length is specified when ordering. The chain is supplied in cut lengths.
Specifications
- Strength class
- 8
- TU
- ТУ 25.93.17-002-06515248-2026
- Gauge d, mm
- 7
- Pitch t, mm
- 21
- Width b, mm
- 23
- Acceptance proof, kN
- 30,8
- Breaking (BL), kN
- 61,6
- Technological, kN
- 36
- Weight per 1 m, kg
- 1,1
Informational (outside the TU): the working load of a lifting chain is taken as BL/4 at a safety factor of 4.
Weight and length
| Length, m | Mass, kg | Links |
|---|---|---|
| 1 | 1,1 | 48 |
| 5 | 5,5 | 238 |
| 10 | 11 | 476 |
| 20 | 22 | 952 |
| 50 | 55 | 2381 |
Mass — by the weight per 1 m from the TU data; the number of links — by the chain pitch.
Calculate more precisely in the calculator