Changzhou Tiangong Forging Co., Ltd.
Changzhou Tiangong Forging Co., Ltd.
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Large Diameter 42CrMo4,18CrNiMo7-6 Heavy Steel Forgings for Wind Turbines. The Large Diameter Precision Forging for Wind Turbines is engineered to meet the demanding structural and mechanical requirements of modern wind energy systems. Manufactured using advanced open-die or ring rolling techniques, this component offers exceptional dimensional accuracy, material integrity, and load-bearing capacity—making it ideal for critical wind turbine applications.
| Item | Details |
|---|---|
| Materials | 4140, 4130, 4340, 4330, 42CrMo, 35CrMo, 1.7225, 18CrNiMo7-6, 20CrMnTi, 20CrNi2Mo, 20CrMnMo, 20CrNo, 35#, 45# |
| Forging Equipment | 5T / 8T / 12T Hydraulic Hammers with full support for large-section forging, capable of handling parts up to 8 meters in length and 10 tons in weight |
| Production Process | Forging → Heat Treatment → Rough Machining |
| Forging Ratio | ≥ 3.0 (ensuring fine grain structure, high mechanical integrity, and sound internal quality) |
| Application | Typically used as transmission main shafts, applied in wind turbines, heavy-duty gearboxes, marine propulsion systems, and other industrial power units |
| Delivery Condition | - Normalized + Tempered (N+T) for rough-machined parts |
| Inspection & Testing Equipment | - Chemical Testing: Spectrograph- Mechanical Testing: Tensile and Impact Test Machine, Hardness Tester- NDT: Ultrasonic Testing (UT), Magnetic Particle Testing (MT)- Dimensional Control: External Micrometers, Bore Dial Indicators- Metallographic Analysis: Metalloscope |
| Full-Cycle Service | We provide a full range of services including forging, heat treatment, CNC machining, packaging, inland logistics, export customs clearance, and maritime transportation. Our priority is meeting customer requirements with strict quality assurance throughout the production cycle. |
Process flow:
Raw Material Steel Ingot (Chemical Composition Inspection)→ Cutting to Size→ Heating in Furnace (Temperature Monitored)→ Forging Operation→ Post-Forging Heat Treatment (Temperature Controlled)→ Discharge from Furnace → Blank Inspection (Surface & Deformation Check)→ Rough Machining→ Initial Inspection (UT, MT, Dimensional Check, Hardness Test)→ Quenching & Tempering (QT)→ Final Inspection (UT, Mechanical Properties, Hardness, Grain Size)→ Finish Machining→ Final Dimensional Inspection→ Packing & Marking (Steel Stamp & Labeling)→ Warehouse Storage → Shipment