Thick-Wall Cylindrical Forged Sleeves

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Common Material Grades, Typical Size Ranges, and Main Applications of Thick-Wall Cylindrical Forged Sleeves

Common Material Grades

Carbon Steel: 1045 (C45), S355J2G3, etc.

Alloy Steel: AISI 4130, 4140, 4340, 8620, as well as 42CrMo4, 34CrNiMo6, 30CrNiMo8, 18CrNiMo7-6, etc. These are the most widely used materials

Stainless Steel/Special Steel: 304L, 316L, 17-4PH, and the Inconel series, etc.

Size Range

Small to Medium Sizes: Outer diameter up to 1000 mm, length up to 3000 mm, weight up to 12 metric tons

Large/Extra-Large Sizes: Outer diameter 4000–5000 mm, length up to 10,000 mm (10 meters), weight up to 30 metric tons

North American Forgemasters: Outer diameters up to 4,064 mm (160 inches), lengths exceeding 10,160 mm (400 inches), and weights exceeding 147 metric tons (325,000 pounds)—representing industry-leading capabilities

Power Plant Thick-Walled Pipe Standards: In accordance with Chinese National Standard GB/T 41982-2022, with an outer diameter of no less than 219 mm and a wall thickness of no less than 25 mm

Major Application Areas

Oil and Gas: Used in high-pressure components such as drilling equipment, blowout preventers, valves, and pump bodies

Power Generation Industry: Used as thick-walled pipes and forgings made of high-alloy heat-resistant steel, serving as critical components of power plant equipment

Engineering and Heavy Machinery: Used as blank billets for hydraulic cylinders, bearing rings, and press pistons in heavy equipment

Gears and Transmission Systems: Used as blanks for transmission components such as large internal gear rings and internal spline sleeves

We also provide forging blanks and CNC precision machining services for our clients, covering industries such as energy, petrochemicals, steel, engineering machinery, plastics, prevention and control, hydraulics, healthcare, and food. Please feel free to send us drawings for inquiries.

Metalworking Services

CNC Machining

Sheet Metal Fabrication

Metal Welding

Metal Cutting

Metal Bending

Metal Punching

Metal Forging

Metal Sheet Rolling

Tube and Plate Drilling

Heavy Forging Press Capacity

Heavy Forging Press Capacity

Our heavy-duty forging presses support open-die forging and deformation of large-section forgings, including discs, shafts, blocks, and custom components. This capability enables us to meet the demanding forming requirements of heavy industrial applications.

Heat Treatment Capability

Heat Treatment Capability

Heat treatment is a critical step in achieving the mechanical properties required for heavy-duty forgings. Our process capabilities meet the strength, toughness, and structural stability requirements for forged components used under demanding operating conditions.

Heavy Shaft Machining

Heavy Shaft Machining

We offer machining capabilities for large forged shafts and long cylindrical components, supporting both rough and finish machining. This capacity is suitable for stepped shafts, rotor shafts, rollers, and other heavy-duty forged shaft components.

Ring Forging Machining

Ring Forging Machining

Our machining facilities are capable of handling large ring-shaped forgings and circular parts that require precise turning, face machining, boring, and contour control. This capability is suitable for industrial ring blanks, heavy-duty circular parts, and machined ring forgings.

Cylindrical Forging Machining

Cylindrical Forging Machining

We offer machining solutions for heavy-duty cylindrical, hollow, and tubular forgings. This capability supports the machining of sleeves, cylinders, and other thick-walled forged components used in pressure vessels, rotating systems, and general industrial applications.

Inspection & Testing

Inspection & Testing

Quality control is integrated into our production process through the inspection and testing of forged and machined parts. Our capabilities help verify the dimensional accuracy, condition, and quality consistency of industrial forgings prior to delivery.

Packing & Delivery

Packing & Delivery

Finished forgings are properly protected and packaged to minimize the risk of damage during storage and transportation. Our packaging methods ensure the safe domestic delivery and export shipment of machined and high-value forged components.

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