The 6 Best 4 Kg Crucibles (2023 reviews)

Not everyone likes to purchase crucible for their daily usage, but the nioctech 4 kg crucible would be an anomoly. It has strong corrosion resistance to acid and alkaline solution, and has excellent chemical stability and thermal shock resistance. It is ideal for use with propane melting furnaces, clay graphite crucible for melting metal, silver, gold, copper, aluminum.

Why We Like This:

Good brand reputation
New and hot release

Best For Copper: OTOOLWORLD 4 Kg Crucible

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Compared with other crucible in this category, the otoolworld 4 kg crucible has a convenient design. The withstand temperatures can be 3200 °F if you use Air Electric Furnace.

Why We Like This:

Excellent thermal conductivity and corrosion resistance
Good investment for long term

Best For melt: Sfc tools 4 Kg Crucible

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Sfc Tools has been making great crucible for years, thanks to a combination of clever design and appropriate materials. These have heavy, thick inner walls so they can handle direct heat and open flame foundries, and they are rated to withstand temperatures up to 1560f. It has the capacity to handle large batches of material per melt. It has a pouring tab with no channel.

Why We Like This:

Lot of satisfied buyers
Good brand reputation

Best For smelting: Bewinner 4 Kg Crucible

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The bewinner 4 kg crucible should be able to handle its purpose and duties with ease. It offers a variety of 3c electronic products, such as computers, tvs, mobile phones, headphones, electronic albums, game consoles, speakers, network cards, chargers, etc. It is used to heat treat some tooling steel, worked great at. It is designed to use with fuel/gas and medium/ high heat induction furnaces and kilns.

Why We Like This:

Designed for melting gold, silver, copper, brass, aluminum and more
Surface can be treated with antioxidant
Good wear resistance, strong lubrication performance and long service life
High purity, high density, high mechanical strength, strong chemical stability

Best For someone: PMC Supplies Llc 4 Kg Crucible

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The pmc supplies llc 4 kg crucible is capable of outshining several other crucible featured in this list in overall features for the price point. This Crucible is only good for a few melts. It is made from coarse graphite material. It is ideal for someone who is only looking to melt several batches of material at a time.

Why We Like This:

Ideal for melting down several batches at a time
Made out of economy grade graphite
Good brand reputation

Best For Melting Gold: Brrnoo 4 Kg Crucible

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Best part: brrnoo 4 kg crucible costs comparatively low and it is available to ship in 24 hours. Silicon carbide graphite crucifiers are parts and must be replaced after prolonged use. It is a graphite bar mould for an oven. It has a high corrosion resistance to acid and alkaline solutions, has excellent chemical stability and can be used for melting precious metals such as gold and silver. The surface can be treated with an antioxidant.

Brrnoo is a trusted brand that provides people with the opportunity to express their taste and improve your standard of living. The silicon carbide graphite jar has high purity, high density, high mechanical strength, and strong chemical stability. It is more durable than clay graphite.

Why We Like This:

High purity, high density, high mechanical strength, strong chemical stability
Used for melting precious metals such as gold and silver
Bring a comfortable and comfortable experience
Excellent thermal stability, fast heating and cooling can shorten melting time and save energy