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A wide stack of ivory tubes with rounded closed ends, grouped in bundles wrapped with clear stretch film, on a plain grey background.

10 × 6 mm alumina thermocouple protection tube

OD 10 mm · ID 6 mm · wall 2 mm

  • In stock
  • European standard size

An alumina sheath that shields the thermocouple wires and their insulator from the furnace atmosphere. We make it closed at one end or open at both, and cut it to the length you order.

Specifications

Nominal dimensions from our factory's standard-size list, September 2026.

LOD10ID 6closed endopen end
Not to scale. Nominal dimensions in mm.
Specifications of the 10 × 6 mm protection tube, in millimetres
Outside diameter (OD)10 mm
Inside diameter (ID)6 mm
Wall thickness2 mmcomputed: (OD − ID) ÷ 2
LengthOn request. Protection tubes made so far: 300⁠–⁠2500 mm
EndsOne-end closed · Open-ended
AvailabilityIn stock (factory stock list, September 2026)
European size seriesSame OD × ID as the C 799 size in the European list. A dimension match only: the grade is stated per order.
Material and gradeHigh-alumina (>85% Al₂O₃), corundum (99, 99.5 and 99.7% Al₂O₃ grades) and mullite. Purity and maximum temperature are confirmed per SKU.

Our insulators that fit inside

Insulators from our standard list whose OD is at least 1 mm smaller than this tube's 6 mm ID.

How we worked it out: insulator OD + 1 mm ≤ tube ID, on nominal sizes, which leaves room for the tolerances of both parts. Check the fit against your own drawing.

Tolerances on our 2026 orders

What buyers wrote on the orders we supplied in 2026 for 10 mm OD. They are what was ordered and delivered, not a promise for every order: the tolerance for your order is the one in its quotation.

Tolerances on 2026 orders, 10 mm OD
DimensionTolerance on orders (mm)
OD±0.4 to ±0.6
ID±0.4 to ±0.7 or +1/−0
Length±1

Tolerances in detail, with DIN 40680

Ordering

Minimum order, non-standard parts
100 pcs
Usually, per item made to your drawing or sample.
Samples for approval
5–10 pcs
Usually sent for you to approve before the order runs.
Production lead time
25–30 days
Usual production cycle for non-standard parts.
Standard sizes from stock
~3⁠–⁠7 days
Stock covers most standard sizes. Small orders ship in about 3 days, bulk orders in about 7 days.

Typical terms. Quantities and dates for your order are confirmed in its quotation.

Request a quote

Get a quotation for the 10 × 6 mm protection tube.

Tell us the dimensions, grade and quantity. A contractual datasheet with current, product-specific test data and tolerances comes with each quotation.