Sign In | Join Free | My burrillandco.com
Home > Fitness & Body Building >

High-Strength Hollow Alloy Steel Forging Blank for Rotary Machinery

    Buy cheap High-Strength Hollow Alloy Steel Forging Blank for Rotary Machinery from wholesalers
     
    Buy cheap High-Strength Hollow Alloy Steel Forging Blank for Rotary Machinery from wholesalers
    • Buy cheap High-Strength Hollow Alloy Steel Forging Blank for Rotary Machinery from wholesalers
    • Buy cheap High-Strength Hollow Alloy Steel Forging Blank for Rotary Machinery from wholesalers
    • Buy cheap High-Strength Hollow Alloy Steel Forging Blank for Rotary Machinery from wholesalers

    High-Strength Hollow Alloy Steel Forging Blank for Rotary Machinery

    Ask Lasest Price
    Brand Name : Tiangong
    Certification : ISO9001, ISO14001,ISO45001
    Price : USD1000-USD2000/piece
    Payment Terms : T/T
    Supply Ability : 56000 Tons per year
    Delivery Time : 30days
    • Product Details
    • Company Profile

    High-Strength Hollow Alloy Steel Forging Blank 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.
    ItemDetails
    Product NameHigh-Strength Hollow Alloy Steel Forging Blank for Rotary Machinery
    Material Grades- High-performance alloy steels: 42CrMo4 / 35CrMo/ 18CrNiMo7-6 - Superior tensile strength, impact resistance, and fatigue life - Designed for hollow-core components operating under rotary stress
    Forging Equipment- Hydraulic hammers: 5T / 8T / 12T - Large open-die forging press with axial boring capabilities - Supports near-net shape forging with internal bore formation
    Manufacturing ProcessHot Forging → Intermediate Heat Treatment → Core Boring / Drilling → Rough / Semi-Finish Machining → UT & Dimensional Inspection
    Forging Ratio≥ 3.0 — Enhances grain orientation around the bore, critical for minimizing fatigue cracks and maintaining balance in rotating parts
    Applications- Rotary shafts, bored coupling sleeves, hollow drums, and tubular drive shafts - Ideal for gearboxes, kilns, mixers, and rolling mill transmissions - Engineered to handle torsional vibration, internal cooling channels, and cyclical dynamic loads
    Heat Treatment Options- Quenched + Tempered for maximum core strength and toughness - Optional stress relief for dimensional stability prior to precision machining
    Testing & Inspection- Chemical: Spectrometer-controlled alloy verification - Mechanical: Hardness, tensile strength, yield, and Charpy impact - Ultrasonic (UT): Multi-angle scanning focused on internal bore zones - Dimensional: Bore diameter, straightness, wall thickness, concentricity, and length control
    Value-Added Services- Custom bore diameter, wall profile, and external features - Pre-machined surfaces (journals, end faces, grooves) - Rust-preventive coating, end protection, steel banding & crate packaging - Laser marking, OEM branding, and complete traceability documents
    Item
    42CrMo Alloy Steel
    18CrNiMo7-6 Alloy Steel
    Steel Grade (GB / ASTM)
    42CrMo / 42CrMo4 (Equivalent to AISI 4140 / SAE 4140)
    18CrNiMo7-6 / 1.6587 (Equivalent to AISI 4320)
    Carbon Content
    Approx. 0.38–0.45%
    Approx. 0.15–0.21%
    Tensile Strength
    850–1100 MPa (after quench & temper)
    1180–1380 MPa (quenched and tempered)
    Yield Strength
    ≥ 740 MPa
    ≥ 1080 MPa
    Hardness (HBW)
    280–360 (quenched & tempered)
    341–388 (quenched & tempered)
    Toughness
    Excellent toughness and fatigue resistance
    Exceptionally high toughness, superior fatigue and wear resistance
    Machinability
    Moderate, machining recommended after heat treatment
    Moderate, requires careful machining due to high alloy content
    Heat Treatment Options
    Quenched and Tempered (standard for shafts)
    Quenched and Tempered, Carburized, Nitrided
    Typical Applications
    Drive Shafts / Couplings, Roll Shafts, Reactor Shaft, Yaw / Pitch Shaft
    Transmission gears, axles, high-load bearing components, aerospace and automotive critical parts
    Forging Suitability
    Ideal for high-strength, high-fatigue wind turbine shafts
    Excellent forging properties, suitable for complex high-stress components


    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.

    Quality High-Strength Hollow Alloy Steel Forging Blank for Rotary Machinery for sale
    • Haven't found right suppliers
    • Our buyer assistants can help you find the most suitable, 100% reliable suppliers from China.
    • And this service is free of charge.
    • we have buyer assistants who speak English, French, Spanish......and we are ready to help you anytime!
    Submit Buying Request
    Send your message to this supplier
    *From:
    Your email address is incorrect!
    *Subject:
    Your subject must be between 10-255 characters!
    *Message:
    For the best results, we recommend including the following details:
    • --Self introduction
    • --Required specifications
    • --Inquire about price/MOQ
    Your message must be between 20-3,000
    Yes! I would like your verified suppliers matching service!
    Send your message to this supplier
     
    *From:
    *To: Changzhou Tiangong Forging Co., Ltd.
    *Subject:
    *Message:
    Characters Remaining: (0/3000)
     
    Explore more Steel Forging Blank products from this supplier
    Find Similar Products By Category:
    Inquiry Cart 0