A4 Stainless Steel Round Head Solid Rivet — GB/T 867 / DIN 660 (Series 097) pairs the standard GB/T 867 / DIN 660 with a A4 Stainless Steel base material. The sections below cover why engineers select this grade for round head solid rivet — gb/t 867 / din 660 (series 097), its corrosion and temperature behavior, and the sizes available.
Why Choose A4 Stainless Steel for Round Head Solid Rivet — GB/T 867 / DIN 660 (Series 097)
Specified for marine, coastal and chemical applications. For round head solid rivet — gb/t 867 / din 660 (series 097), 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 Round Head Solid Rivet — GB/T 867 / DIN 660 (Series 097) in marine, coastal, swimming-pool or food-processing environments, A4 is the default selection.
Galvanic & Galling Considerations
Two important notes for stainless round head solid rivet — gb/t 867 / din 660 (series 097): (1) stainless can gall on stainless threads under load — use a thread lubricant or anti-galling compound, especially for M6 and below; (2) when joined to aluminum or galvanized steel, stainless can drive galvanic corrosion of the less-noble metal in wet service — isolate with a coating or sleeve where appropriate.
Sizes of Round Head Solid Rivet — GB/T 867 / DIN 660 (Series 097) Available in A4 Stainless Steel
| Nominal diameter (mm) | Length L (mm) | Head diameter dk (mm) | Head height k (mm) | Material | Reference standard |
|---|---|---|---|---|---|
| 2.5 | 8 | 5 | 1.6 | Aluminum | GB/T 867 / DIN 660 |
| 3 | 10 | 6 | 1.9 | Aluminum | GB/T 867 / DIN 660 |
| 4 | 16 | 8 | 2.5 | Carbon steel | GB/T 867 / DIN 660 |
| 5 | 20 | 10 | 3.1 | Carbon steel | GB/T 867 / DIN 660 |
| 6 | 25 | 12 | 3.8 | Carbon steel | GB/T 867 / DIN 660 |
| 8 | 32 | 16 | 5.0 | Carbon steel | GB/T 867 / DIN 660 |
| 10 | 40 | 20 | 6.3 | Carbon steel | GB/T 867 / DIN 660 |
| 12 | 50 | 24 | 7.5 | Carbon steel | GB/T 867 / DIN 660 |