14 mm OD × 12 mm ID × 250 mm T300 Carbon Fiber Tube

14 mm OD × 12 mm ID × 250 mm T300

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Product overview

GBTECH 14×12×250 mm carbon fiber tube is a round T300 composite member with a 1 mm nominal wall and a matte twill surface appearance. The 250 mm format provides a short stock piece for compact parts and sample assemblies. It avoids buying a one-metre member when the required component is already short.

The 14 mm outside diameter provides a larger connection envelope while retaining a 1 mm nominal wall. The 12 mm internal opening should be reviewed when designing sleeved joints, internal inserts or routing passages.

Product specifications

Short components and samples

Choose this length when the complete member fits within 250 mm or when you need short samples for assembly trials.

Potential uses to evaluate include lightweight equipment frames, positioning-rig members, sleeved structural prototypes. These are design directions, not certified load-bearing applications.

Connection and processing notes

• Do not equate a larger outside diameter with a guaranteed load rating.

• Review local wall stress around sleeved and clamped joints.

Use tooling and dust control suitable for carbon-fiber composites. Protect nearby electronics from conductive dust, finish cut edges as required, and validate bonded, clamped or fastened connections before use.

Temperature and design limits

The catalogue lists nominal heat resistance of 150°C. This is not a universal continuous-service temperature: confirm the test method, exposure duration, load and safety margin for the intended duty cycle.

Fiber orientation, resin, unsupported length and joint details determine suitability. Do not infer a certified strength or stiffness value from diameter alone.

Frequently asked questions

Why select 250 mm? This format is useful when a short piece reduces unnecessary cutting and leftover stock; confirm any final length tolerance separately.

How is wall thickness calculated? (14 − 12) ÷ 2 gives 1 mm nominal wall thickness; actual dimensional tolerances require confirmation.

Other lengths

Also available in the same diameter family:

• 500 mm length

• 1000 mm length

Request a quote

Request a quotation with the product number, required quantity, final dimensions or drawing, tolerance requirements and delivery country. Confirm pricing, packaging, availability and lead time with GBTECH before ordering.