Changzhou Tiangong Forging Co., Ltd.
                                                                                                           
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Large Diameter Heavy Steel Forgings Rough Machined Die Forging Rolling Mill Components

Price Negotiable
Price: USD1000-USD2000/piece
MOQ: 1
Delivery Time: 30days
Brand: Tiangong
Product Description

Large Diameter Rough Machined Heavy Steel Forgings for Rolling Mill Components. Our large diameter rough machined heavy steel forgings are engineered to meet the demanding needs of rolling mill systems. These components are designed to withstand extreme mechanical stress, repeated thermal cycling, and high torque during continuous operation. Forged from high-strength alloy steels and processed with precision open die techniques, they ensure superior structural integrity and service life.

Key Features:

  • Large Diameter Capability: Forgings available up to 1700 mm in outer diameter and up to 7 tons per piece, suitable for rolling mill work rolls,  and shafts.

  • High Structural Strength: Forging ratio ≥ 3.0 ensures dense grain flow and enhanced mechanical properties under heavy rolling and compressive forces.

  • Rough Machined Finish: Delivered in rough-machined condition, allowing for custom final machining based on assembly needs and tolerances.

  • Thermal and Mechanical Stability: Optimized heat treatment improves core toughness, fatigue resistance, and dimensional stability under high temperatures.

Applications:

  • Work roll and backup roll shafts for hot and cold rolling mills

  • Transmission components for plate and strip rolling equipment

  • Housing parts and support structures for steel and aluminum rolling mills

  • Gear and coupling blanks for rolling line drive systems

Item Details
Product Name Large Diameter Rough Machined Heavy Steel Forgings for Rolling Mill Components
Material Grades - Alloy steels tailored for high compressive strength, fatigue resistance, and dimensional stability under rolling loads and temperature fluctuations
Forging Equipment - Hydraulic Hammers: 5T, 8T, 12T- Suitable for open die forging of extra-large diameter components and heavy-section parts
Manufacturing Process Raw material inspection → Unloading → Inspection → Preheating → Forging → Heat Treatment → Inspection → Rough Machining → Non-Destructive Testing → Final Inspection → Packaging → Delivery
Forging Ratio ≥ 3.0 — Improves internal uniformity, grain flow, and durability under high torque and compressive stress during rolling operations
Heat Treatment Options - Normalizing and tempering to refine microstructure, improve dimensional stability, and relieve internal stress
Applications - Backup rolls, work roll shafts, and coupling components in hot/cold strip mills- Support rollers, drive shafts, and rolling mill housing components
Process Compliance - Manufactured based on customer-provided technical drawings and heavy load service requirements
Delivery Conditions - Supplied heat treated and rough machined to allow final processing by OEMs- Custom geometry available for rolling mill integration
Testing & Inspection - Chemical Composition Testing- Mechanical Testing: Strength, Toughness, Hardness- NDT: Ultrasonic Testing (UT), Magnetic Particle Testing (MT)- Dimensional Inspection using precision tools


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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Changzhou Tiangong Forging Co., Ltd.
Location Wangxia Village, Luoxi Town, Xuejia Town, Xin Bei District, Changzhou City, Jiangsu Province, China
Contact Person Mia Liu

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