Specifying GL-XLC Rotating Shaft — GB/T 97.1 / ISO 7089 (Series 085) in A4 Stainless Steel pairs the dimensional form of GL-XLC Rotating Shaft — GB/T 97.1 / ISO 7089 (Series 085) (GB/T 97.1 / ISO 7089) with the engineering properties of A4 Stainless Steel. This page explains when to choose the grade, how it behaves in service, and which grades to compare it against.
Why Choose A4 Stainless Steel for GL-XLC Rotating Shaft — GB/T 97.1 / ISO 7089 (Series 085)
Specified for marine, coastal and chemical applications. For gl-xlc rotating shaft — gb/t 97.1 / iso 7089 (series 085), 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 GL-XLC Rotating Shaft — GB/T 97.1 / ISO 7089 (Series 085) in marine, coastal, swimming-pool or food-processing environments, A4 is the default selection.
Comparable Grades
For GL-XLC Rotating Shaft — GB/T 97.1 / ISO 7089 (Series 085), 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 GL-XLC Rotating Shaft — GB/T 97.1 / ISO 7089 (Series 085) Available in A4 Stainless Steel
| Size designation | Outer diameter / width (mm) | Length / height (mm) | Bore / thread (mm) | Material | Reference standard |
|---|---|---|---|---|---|
| Size 1 | 10 | 20 | 6 | C45 carbon steel | GB/T 1804-m |
| Size 2 | 12 | 25 | 8 | C45 carbon steel | GB/T 1804-m |
| Size 3 | 16 | 32 | 10 | C45 carbon steel | GB/T 1804-m |
| Size 4 | 20 | 40 | 12 | C45 carbon steel | GB/T 1804-m |
| Size 5 | 25 | 50 | 16 | C45 carbon steel | GB/T 1804-m |
| Size 6 | 32 | 63 | 20 | C45 carbon steel | GB/T 1804-m |
| Size 7 | 40 | 80 | 25 | C45 carbon steel | GB/T 1804-m |
| Size 8 | 50 | 100 | 30 | C45 carbon steel | GB/T 1804-m |