Material specification page for wire rope thimble in A4 Stainless Steel. Covers the grade designation (A4-80 (316)), corrosion and magnetic behavior, comparable grades and their trade-offs, and the sizes available to ISO / DIN.
Why Choose A4 Stainless Steel for Wire Rope Thimble — ISO / DIN (Series 158)
Specified for marine, coastal and chemical applications. For wire rope thimble — iso / din (series 158), this matters when superior, including marine and chloride environments is the primary requirement.
Mechanical & Physical Properties
| Grade designation | A4-80 (316) |
|---|---|
| Magnetic response | Largely non-magnetic |
| Service temperature | approx. -200 °C to +400 °C |
| Corrosion characteristic | Superior, including marine and chloride environments |
Corrosion Behavior in Service
A4 (316) adds 2–3% molybdenum to the A2 (304) composition, which dramatically improves resistance to chloride-pitting corrosion. For Wire Rope Thimble — ISO / DIN (Series 158) in marine, coastal, swimming-pool or food-processing environments, A4 is the default selection.
Comparable Grades
For Wire Rope Thimble — ISO / DIN (Series 158), the alternative stainless grade is A2 (304). A2 (304) suits general indoor and outdoor service; A4 (316) adds molybdenum for marine and chloride environments. Where higher strength matters more than corrosion, switch to plated alloy-steel class 8.8 or 10.9.
Sizes of Wire Rope Thimble — ISO / DIN (Series 158) Available in A4 Stainless Steel
| For rope diameter (mm) | Inside length (mm) | Outside length (mm) | Material | Reference standard |
|---|---|---|---|---|
| 4 | 18 | 28 | Galvanized steel | DIN 6899 / GB/T 5974 |
| 5 | 22 | 33 | Galvanized steel | DIN 6899 / GB/T 5974 |
| 6 | 25 | 38 | Galvanized steel | DIN 6899 / GB/T 5974 |
| 8 | 32 | 48 | Galvanized steel | DIN 6899 / GB/T 5974 |
| 10 | 38 | 58 | Galvanized steel | DIN 6899 / GB/T 5974 |
| 12 | 45 | 68 | Galvanized steel | DIN 6899 / GB/T 5974 |
| 16 | 58 | 88 | Galvanized steel | DIN 6899 / GB/T 5974 |
| 20 | 72 | 108 | Galvanized steel | DIN 6899 / GB/T 5974 |
| 24 | 86 | 128 | Galvanized steel | DIN 6899 / GB/T 5974 |