Grade 80 alloy chain slings
EN818-2, ISO 3076, DIN5687
Welded chains
Short/long link chain
High strength ring chain
Applications: high strength correction chains, non correcting chains, strapping chains, hoist chains.
Material: high quality alloy steel
Surface: polishing, black, dipping paint, hanging plastic, electroplating.
Manufacturing standards: ISO3077, EN818, AS2321.
Manufacturing strength: class 80, grade 70
Safety guarantee: 4 times safety factor, 2.5 times test load.
Services: can be manufactured according to user requirements non-standard or specific strength, level of chain
Chain production process
1. Order undertaking
2. Product performance requirements
3. Raw material receiving
4. Raw material inspection
5. Raw material storage
6. Wire drawing
7. Make chain
8. welding
9. Surface inspection
10. Sampling break test
11. Test pull test
12. heat treatment
13. Fixed length test and tensile test
14. Galvanized
15. Sampling break test
16. Total inspection
17. Packing
18. service after selling goods for a stated period
Grade 80
| Diameter | Inside Width Min
w1(mm) | Outside Width Min
w1(mm) | Break Load Min
( BF/KN ) |
| D(mm) |
Deviation | | | |
| 4 | ±0.16 | 5.2 | 14.8 | 20.1 |
| 5 | ± 0.2 | 6.5 | 18.5 | 31.4 |
| 6 | ±0.24 | 7.8 | 22.2 | 49.8 |
| 7 | ±0.28 | 9.1 | 25.9 | 61.5 |
| 8 | ±0.32 | 10.4 | 29.6 | 80.4 |
| 10 | ±0.4 | 13 | 37 | 125.6 |
| 13 | ±0.52 | 16.9 | 48.1 | 212.3 |
| 16 | ±0.64 | 20.8 | 59.2 | 321.6 |
| 18 | ±0.9 | 23.4 | 66.6 | 407.1 |
| 19 | ±1 | 24.7 | 70.3 | 453.6 |
| 20 | ±1 | 26 | 74 | 502.6 |