Hollow Fatigue Resistant Steel Forging Blank Alloy Steel Forging For Rotary Machinery

High-Strength Hollow Alloy Steel Forging Blank for Rotary Machinery.This forged hollow alloy steel blank is engineered for critical rotary applications requiring high strength, fatigue resistance, and dimensional stability under cyclical loading. Produced through hot open-die forging and precision boring, it offers exceptional metallurgical integrity and customizable geometry for a wide range of rotating components.

Product Features

• Optimized Strength-to-Weight: Hollow design reduces weight while maintaining exceptional strength for high-speed machinery.
• Superior Material Integrity: Forging refines grain, eliminating defects for enhanced toughness and ductility.
• High Fatigue Resistance: Engineered from alloy steel to resist cyclic loading and torsional stresses, extending lifespan.
• Excellent Machinability: Controlled forging ensures material is amenable to precise machining for tight tolerances.
• Customizable: Available in various alloy grades and tailored dimensions to meet specific rotary application needs.
• Enhanced Heat Treatment Response: Allows for optimal response to heat treatments for customized hardness and mechanical properties.

Application Scenarios

These hollow alloy steel forging blanks are essential for critical components in demanding rotary machinery across diverse industries:

• Turbomachinery: Ideal for turbine and compressor shafts, and hollow rotor components in gas and steam turbines.
• Wind Power: Used for hollow main shafts or internal gearbox shafts, optimizing weight while maintaining immense strength.
• High-Speed Industrial Gearboxes: For hollow input, intermediate, or output shafts where reduced inertia and high torque are vital.
• Marine & Offshore Propulsion: Components for hollow propeller shafts and main transmission shafts in ships and offshore platforms.
• Large Motors & Generators: Used for hollow rotor shafts, balancing weight with the need for robust structural integrity.
• Aerospace & Defense: For various hollow shafts and rotating components where weight reduction and reliability are paramount.
• Heavy Industrial Rollers/Spindles: For large, strong, yet lighter-weight rotating elements in specialized machinery.

The steel forgings production flow:

raw material inspection → unloading → inspection → preheating → forging → heat treatment → inspection → rough machining → non-destructive testing → inspection → packaging → delivery.

Frequently Asked Questions (FAQs)
1. What is your forging weight range?
We produce forged parts ranging from 100 kg to 7000 kg.

2. Do you provide heat treatment and machining?
Yes, we offer full in-house heat treatment, rough, and finish machining services.

3. Which industries do you supply to?
We serve wind energy, heavy equipment, port machinery, transmission systems, and more.

4. What is your production lead time?

With stock: Around 30 days

Without stock: 40–45 days

5. Where is your factory located?
In Changzhou City, near Shanghai, with shipping via Shanghai Port.

Request a Quote
Please send your technical drawings and requirements to us. Our engineers will review and provide you with a professional quotation and solution shortly.