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Marine Propulsion Shaft Forging
Marine Propulsion Shaft Forging
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This shaft forging is intended for propulsion and drive applications in marine equipment where dependable shaft integrity and long-service performance are essential. It is generally supplied as a forged or rough-machined shaft blank prepared for final turning, keyway machining, coupling features, or assembly details. The product is suitable for projects requiring custom length, stepped geometry, or classification-oriented quality control. For special shaft projects, purchasing decisions are usually driven by operating load, machining sequence, straightness control, and the need for adequate stock in journals, tapers, or connection zones. These forgings are therefore produced with attention to section transition, heat-treatment compatibility, and dimensional allowance so that the customer can complete the final shaft geometry with reduced structural risk. Additional rough machining, ultrasonic testing, mechanical-property verification, and marking can also be provided for projects with stricter equipment or inspection requirements.
| Parameter | Description |
|---|---|
| Key Features | Classification society approval, long-shaft straightness, seawater corrosion resistance, journal accuracy |
| Typical Materials | 34CrNiMo6, 42CrMo4, per classification (ABS/DNV/LR/CCS) |
| Size Range | Diameter 200~800mm / Length ≤12000mm / Unit Weight ≤60 tons |
| Typical Applications | Marine stern shafts, intermediate shafts, propeller shafts, rudder stocks |
| Supply Condition | Quenched & tempered / Rough machined (stock on journals) |
| Inspection & Docs | UT 100%, class society witness, mechanical properties, full dimensional inspection, EN 10204 3.2 |
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