Wire Rope Clip (U-Bolt) manufactured in Grade 8.8 Steel (class 8.8) are dimensioned to ISO / DIN. The sections below give the mechanical and physical properties of the grade, its behavior in corrosive and elevated-temperature service, and the full size table.
Why Choose Grade 8.8 Steel for Wire Rope Clip (U-Bolt) — ISO / DIN (Series 157)
The workhorse medium-carbon alloy grade for structural joints. For wire rope clip (u-bolt) — iso / din (series 157), this matters when requires plating (zinc) for corrosion protection is the primary requirement.
Mechanical & Physical Properties
| Grade designation | class 8.8 |
|---|---|
| Magnetic response | Magnetic |
| Service temperature | up to approx. +300 °C |
| Corrosion characteristic | Requires plating (zinc) for corrosion protection |
Corrosion Behavior in Service
Carbon and alloy steel wire rope clip (u-bolt) — iso / din (series 157) require a coating for corrosion protection. Zinc plating (with or without passivation) is the most common; hot-dip galvanizing is used for outdoor structural service; black-oxide is mainly a tarnish-prevention finish for tool-room use.
Comparable Grades
For Wire Rope Clip (U-Bolt) — ISO / DIN (Series 157), class 10.9 or 12.9 is the comparable strength step. Move up when the joint preload approaches the proof load of the current class; move down when the joint is over-specified. For corrosion-critical service, switch to stainless A2 or A4.
Sizes of Wire Rope Clip (U-Bolt) — ISO / DIN (Series 157) Available in Grade 8.8 Steel
| For rope diameter (mm) | U-bolt diameter (mm) | Saddle width (mm) | Bolt thread | Working load limit (kg) | Reference standard |
|---|---|---|---|---|---|
| 6 | M5 | 16 | M5 | 60 | DIN 1142 / GB/T 5976 |
| 8 | M6 | 20 | M6 | 110 | DIN 1142 / GB/T 5976 |
| 10 | M8 | 26 | M8 | 180 | DIN 1142 / GB/T 5976 |
| 12 | M10 | 32 | M10 | 260 | DIN 1142 / GB/T 5976 |
| 16 | M12 | 38 | M12 | 460 | DIN 1142 / GB/T 5976 |
| 20 | M14 | 45 | M14 | 720 | DIN 1142 / GB/T 5976 |
| 24 | M16 | 55 | M16 | 1050 | DIN 1142 / GB/T 5976 |
| 30 | M20 | 70 | M20 | 1640 | DIN 1142 / GB/T 5976 |