20 mm OD × 18 mm ID × 1000 mm Carbon Fiber Tube

Product overview

The GBTECH 20x18x1000 mm carbon fiber tube specification describes a round tube with a 20 mm outside diameter, 18 mm inside diameter and 1000 mm nominal length. The 18 mm bore and 1 mm nominal wall define this 20 mm outside-diameter format. Review fit, clamping pressure and local reinforcement when using inserts or brackets.

Image shown is representative of carbon fiber tubing. Confirm the actual surface finish, fibre grade and construction for this size when requesting a quotation.

Dimensions and specification

Application directions to evaluate

Depending on the confirmed laminate and design requirements, this size can be evaluated for equipment-frame prototypes, automation fixtures, lightweight support members and positioning rigs. Use the 18 mm bore dimension when assessing internal sleeves or insert clearance.

These are application directions, not certified load ratings. Unsupported length, loading direction, fibre orientation, joints and the operating environment determine suitability.

Connection and processing considerations

• Check actual OD and ID tolerances before designing mating parts.
• Review clamped, bonded or sleeved connections for the 1 mm nominal wall.
• Allow for cutting kerf, end trimming and any required edge finishing.
• Confirm machining and assembly requirements with GBTECH using a drawing.

Frequently asked questions

What does 20x18x1000 mm mean?

It means 20 mm outside diameter × 18 mm inside diameter × 1000 mm nominal length. Actual tolerances must be confirmed separately.

What is the nominal wall thickness?

For a concentric round tube, (OD − ID) ÷ 2 gives (20 − 18) ÷ 2 = 1 mm.

Is this size available from the California warehouse?

Selected GBTECH standard products are stocked in California. Availability of this exact size, quantity, shipping origin and lead time requires confirmation. Review U.S. stock and supply information.

Compare related tube sizes

• 14 mm OD × 12 mm ID × 1000 mm tube
• 12 mm OD × 10 mm ID × 1000 mm tube
• Browse the carbon fiber tube size directory
• Compare tube construction types

Request a quotation

Send the size 20x18x1000 mm, required quantity, drawing or final cut lengths, tolerances, intended application and delivery destination. GBTECH can confirm the applicable material specification, price, availability and lead time.

Request a 20x18x1000 mm tube quote