Nuclear fuel tubes in zirconium alloys

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Nuclear fuel tubes

Tube, pipe, fittings and flanges

Zirconium alloy nuclear fuel cladding tubes from Alleima cover all fuel designs and most technical specifications. Our to date manufacturing experience of nuclear fuel tubes is well over 60,000,000 meters for more than 100 reactors worldwide.

Feature story

How nuclear became a fuel for the future – again

As the world seeks to solve an increasingly complex energy puzzle, nuclear has once again made its way to the top of the political agenda.

How nuclear became a fuel for the future – again

Our manufacture of zirconium alloy nuclear fuel tubes is a completely integrated process that starts with alloying and melting zirconium sponge and concludes with the finished tubes.

This completely integrated manufacturing process enables us to control and optimize a wide range of critical process parameters to safeguard the extremely high quality and material property demands.

The result is safe and trouble free performance during reactor peak activity levels and the targeted life time of the nuclear fuel elements of which the cladding tubes are the most critical component.

Nuclear fuel types

Alleima manufactures nuclear fuel tubes to the following nuclear fuel types:

PWR/VVER
BWR
CANDU (HWR)
AGR
LMFBR

Size range and grades

Boiling Water Reactors - BWR


Fuel designs	8x8, 9x9 and 10x10
Grades	Zircaloy-2, Zircaloy-2 variants and new developments
	Zircaloy-2 plus an inner surface liner of alloyed or pure Zirconium
Size range:	OD 9 - 25 mm (0.354 - 0.984 in.)

Pressurized Water Reactors - PWR

Fuel designs	15x15, 16x16, 17x17, 18x18 and VVER
Grades	Zircaloy-4
	New Zirconium based alloys
Size range	OD 8 - 15 mm (0.315 - 0.590 in.)

Heavy Water Reactors (HWR, CANDU)

Grades	Zircaloy-4
Size range	OD 12 - 16 mm (0.472 - 0.630 in.)

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Nuclear steam generator tubing