Nickel Alloy Seamless Forged Rings
When manufacturing critical rotational components for aerospace turbines, deep-sea valves, and heavy-duty slewing bearings, material failure is catastrophic. 28Nickel supplies premium seamless rolled nickel alloy rings that deliver unparalleled radial strength and fatigue resistance. By providing a near-net shape, our forged rings drastically reduce your CNC machining time and eliminate the immense material waste associated with boring out solid blocks or plates.
Available Alloy Grades for Forged Rings
The extreme heat of a jet engine or the crushing pressure of a subsea wellhead demands superalloys that maintain their yield strength under duress. We forge seamless rings in the industry's most robust and heat-resistant grades.
Select a Grade to View Material Specs:
The Engineering Advantage of Rolled Rings
Why forge a ring instead of cutting a circle from a thick nickel alloy plate? The answer is structural integrity and cost efficiency.
Radial Grain Flow
During the seamless ring rolling process, the metal's internal grain structure is oriented circumferentially (matching the shape of the ring). This provides vastly superior resistance to impact, fatigue, and radial stress compared to castings or plate-cut rings where the grain is interrupted.
Massive Material Savings
Nickel superalloys are incredibly expensive. Machining a large ring out of a solid forged block or plate results in a massive core of wasted material (swarf). A seamless rolled ring provides a near-net shape, ensuring you only pay for the metal you actually need.
Reduced Machining Time
Because the ring is forged close to your final component's dimensions, your CNC lathes and mills spend significantly less time roughing out material, reducing tool wear and drastically shortening your production cycle.
Absence of Porosity
The immense pressure of the radial-axial rolling mill consolidates the metal, completely eliminating the microscopic voids, gas pockets, and shrinkage defects commonly found in large centrifugal castings.
Common Applications
Aerospace: Jet engine casings, turbine rotor rings, and combustion chamber liners (e.g., Waspaloy, Inconel 718).
Oil & Gas: Massive API 6A flange blanks, blowout preventer (BOP) components, and subsea wellhead seals.
Power Generation: Generator retaining rings and high-temperature gas turbine components.
Heavy Machinery: High-stress slewing rings, slew bearings, and heavy-duty gear blanks.
| Specification Category | Details & Standards |
|---|---|
| Standard Specifications | ASTM B564, AMS Aerospace Forging Specifications (e.g., AMS 5662/5663), API 6A. |
| Dimensional Capabilities | Outside Diameters (OD) from 4" (100mm) up to 100"+ (2500mm+). Capabilities depend on the specific alloy grade and total weight. |
| Delivery Conditions | As-Forged (Black), Rough Machined (Proof Machined to your specified tolerances to save you tooling wear), Fully Solution Annealed & Aged. |
| Non-Destructive Testing (NDT) | 100% Ultrasonic Testing (UT) to guarantee the absence of internal flaws, provided with full Mill Test Reports (MTR). |
Require a Custom Seamless Rolled Ring?
Send us your required alloy grade, Outside Diameter (OD), Inside Diameter (ID), and Height/Thickness. If you require rough machining, please attach your DXF or PDF blueprints for an accurate evaluation.
Request a Forged Ring Quote