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Quick Answer: CORASEALS supplies aluminum custom gaskets cut or machined to the customer drawing. Send the aluminum grade, ID, OD, thickness, flange or groove dimensions, operating temperature, medium, pressure, surface finish, drawing or sample, and required quantity for a quotation.
An aluminum custom gasket is a flat metal gasket cut or machined to a specific drawing or sample. The profile can be round, rectangular, irregular, or made with bolt holes and cutouts. CORASEALS quotes each aluminum custom gasket from the drawing, the material grade, and the application conditions.
Buyers searching for an aluminum custom gasket supplier need more than a standard size chart. CORASEALS reviews the alloy, the sealing face, and the operating conditions. This reduces quoting mistakes and helps avoid a gasket that fits the drawing but fails in service.
The main dimensions for an aluminum custom gasket are inside diameter, outside diameter, and thickness. The buyer should also define the bolt hole size, bolt circle diameter, number of holes, and any slotted holes or tab extensions. If a standard flange size is used, the gasket must still match the actual sealing surface. Nominal pipe size alone is not enough.
If no drawing exists, CORASEALS can work from a scan, a sample photo, or a hand sketch with the key dimensions. The drawing should show the sealing face, the cutout profile, and any critical tolerances.
Aluminum custom gaskets can be flat, ring type, shim type, or cover gaskets. Some applications require a thin aluminum seal for electrical continuity or heat transfer. Other applications use a thicker aluminum ring as a distance piece or shim.
The common aluminum grades for custom gaskets are 1100, 3003, 5052, and 6061. Each grade has a different balance of softness, strength, and corrosion resistance.
| Aluminum grade | Typical feature | Common gasket use |
|---|---|---|
| 1100 | Commercially pure, soft, good formability | Low pressure cover gaskets, electrical enclosure seals, dust seals |
| 3003 | General purpose, good formability | Light duty custom cut gaskets and access cover gaskets |
| 5052 | Higher strength, good corrosion resistance | General industrial and marine environment gaskets |
| 6061 | Heat treatable, machinable | Machined aluminum gaskets, shims, and structural sealing parts |
Soft grades such as 1100 and 3003 conform to minor flange irregularities. Harder grades such as 5052 and 6061 can handle higher mechanical load but may need a smoother flange surface. CORASEALS does not assign a universal pressure or temperature rating for aluminum gaskets. The service limit changes with the alloy, thickness, flange design, and medium.
Aluminum custom gaskets appear in low and moderate temperature sealing joints. Typical uses include access covers, gearbox covers, light duty flange connections, electrical equipment enclosures, heat exchanger covers, and pump or compressor covers. Some thin aluminum gaskets are also used where electrical continuity or heat transfer is required across the joint.
Aluminum is not the right choice for every chemical service. Strong acids, strong alkalis, and some halogenated media can attack aluminum. High temperature steam or aggressive chemical flanges usually require a different gasket material. CORASEALS checks the medium, temperature, and flange load before recommending an aluminum grade.
Aluminum custom gaskets can be waterjet cut, laser cut, or machined from plate. The method depends on the material thickness, profile complexity, edge quality, and required tolerance. Thin sheet gaskets are often cut with a flat profile. Thicker aluminum gaskets or parts with strict flatness may be machined.
CORASEALS reviews the drawing and tolerance notes before confirming the production route. Buyers should state whether the gasket edge must be burr free, whether the gasket must be flat within a specific deviation, and whether any surface treatment is required.
To prepare a quotation for an aluminum custom gasket, CORASEALS asks for the following details:
If the aluminum grade is not known, send the medium, temperature, and flange load. CORASEALS can suggest a starting point based on the application.
Request a quotation. Send us the gasket type, aluminum grade, ID × OD × thickness, bolt pattern, operating temperature, pressure, medium, surface finish, drawing or sample, and required quantity. CORASEALS will check the material, cutting method, and price based on your application.
CORASEALS supplies gaskets to OEM buyers, maintenance teams, and industrial distributors. The company can source aluminum custom gaskets in prototype quantities and in larger production lots. The quotation is based on the drawing, material grade, production method, and quantity.
Do not send only a nominal flange size. A sketch, drawing, or sample helps CORASEALS confirm the profile before quoting. If the gasket is for a repair, include a photo of the old gasket and the flange surface condition.
Can CORASEALS make an aluminum custom gasket without a drawing?
Yes. Send a sample photo, a scan, or a hand sketch with inside diameter, outside diameter, thickness, and hole positions. CORASEALS will confirm the profile and production method.
Which aluminum grade should I choose for a gasket?
1100 and 3003 are softer and conform to minor surface irregularities. 5052 offers higher strength and better corrosion resistance. 6061 is used for machined structural gaskets. The correct grade depends on the medium, temperature, and flange load.
Does CORASEALS offer standard aluminum gasket sizes?
Standard sizes may be available for common round profiles, but most aluminum custom gaskets are quoted from a drawing. Send the ID, OD, thickness, and hole pattern. CORASEALS will check the closest material and production route.
Are aluminum custom gaskets suitable for high pressure steam?
Aluminum is usually not recommended for high pressure steam or aggressive chemical service. Send the full operating conditions. CORASEALS will check whether aluminum is suitable or suggest another gasket material.
What information do I need to request a quote?
Send the gasket type, aluminum grade, ID × OD × thickness, bolt pattern, operating temperature, pressure, medium, surface finish, drawing or sample, and required quantity.
