K23 Refractory Brick

$10.00

K23 Refractory Brick

Availability: In stock SKU: BRICK-K23
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Description

K23 Refractory Soft Brick for use as forge doors; in the construction of a brick forge or as a surface to silver solder on for small jobs.

Each K23 refractory soft brick measures approximately 75 x 115 x 230 mm and has a working temperature of up to 2300°F / 1260°C.

K-23 bricks do an incredible job of containing high temperatures, but they are soft and fragile and they break down over time. They can crack from having moisture in the bricks that expands as they heat up fast. You can reduce this by heating them slowly to allow the moisture to evaporate before it boils, but some cracking is also an inevitability with soft fire bricks. They still work when cracked and they can be patched with refractory mortar.

When used with a gas burner we recommend running it at a low pressure with the air inlet mostly closed for 5 or so minutes, before turning up the pressure or opening up the air inlet. Do this the first time you use a burner with your bricks, especially if they are stuck together with refractory mortar, and also after any period of damp weather. If you see steam rising from your bricks they are wet and you should lower the heat until they stop steaming.

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Additional information

Weight 1 kg
Dimensions 24 × 12 × 10 cm

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