Hard glass tube and quartz tube are both common tube materials, each of which has unique physical and chemical properties and is suitable for different application scenarios. So what is the difference between hard glass tube and quartz tube?

I, Material composition

The main components of the hard glass tube include silicon dioxide (SiO2), but it also contains calcium silicate (CaSiO3) and sodium silicate (Na2SiO3). These ingredients give the hard glass tube a certain strength and transparency, making it suitable for a variety of purposes.

Quartz tubes are mainly made of high-purity silicon dioxide (SiO2), which is usually more than 99% silica. Quartz tubes are made of high-quality crystal stone, so they have better physical and chemical properties.

II, High temperature resistance

Hard glass tubes have certain high temperature resistance, but they are weaker than quartz tubes. Hard glass tubes can be used under certain high temperature conditions, but usually cannot exceed their softening point temperature.

The high temperature resistance of quartz tubes is even better. The softening point temperature of quartz glass is about 1730 ° C, which can be used for a long time at 1100 ° C, and the temperature can even reach 1450 ° C in a short time. This makes quartz tubes have a wider application prospect in high temperature environments, such as heating equipment such as electric heaters.

III. Corrosion resistance

Hard glass tubes have certain corrosion resistance and can withstand the attack of a variety of chemicals. However, their corrosion resistance is relatively limited, especially in strong acid or alkali environments, chemical reactions may occur.

The corrosion resistance of quartz tubes is even better. Except for hydrofluoric acid, quartz glass does not chemically react with other acids, and its acid resistance is several times that of glass. This makes quartz tubes more reliable in environments that need to withstand corrosive substances.

IV, Thermal stability

Hard glass tubes may break due to thermal stress in environments with large temperature changes. Therefore, special care is required when using to avoid severe temperature changes.

Quartz tubes have better thermal stability. They have a small coefficient of thermal expansion and can withstand severe temperature changes. For example, quartz glass will not burst even if it is heated to around 1100 ° C and placed in room temperature water. This makes quartz tubes more stable in environments that need to withstand large temperature changes.

V, light transmittance

Hard glass tubes are transparent, allowing observation of the color changes and reaction processes of the internal substances. However, their light transmittance is relatively limited and may be affected by some factors, such as thickness and impurities.

The light transmittance of quartz tubes is even better. Its high-purity silica composition makes quartz tubes have higher light transmittance and lower absorption. This makes quartz tubes more valuable in applications that require observation of the reaction process of internal substances, such as laboratories, medical fields, etc.

VI, application field

hard glass tubes are commonly used in laboratories, industries, and medical fields because of their resistance to high temperatures, corrosion, and transparency. For example, they can be used to hold liquid or gas samples for isolation and protection; they can also be used to observe and analyze the properties of substances.

Quartz tubes are widely used in discharge tubes, insulation products, acid-resistant containers, semiconductors and other products because of their excellent high temperature resistance, corrosion resistance, thermal stability and light transmission. In addition, quartz tubes are also often used in heating equipment such as electric heaters because they can withstand high temperatures for a long time without deformation or cracking.

VII. Price and manufacturing process

The price of hard glass tubes is relatively low and the manufacturing process is relatively simple. This makes hard glass tubes more cost-effective in some occasions where performance requirements are not high.

The price of quartz tubes is relatively high because its raw material is high-quality crystal stone and the manufacturing process is more refined. However, its excellent physical and chemical properties make quartz tubes irreplaceable in some applications with high performance requirements.

There are obvious differences between hard glass tubes and quartz tubes in terms of material composition, high temperature resistance, corrosion resistance, thermal stability, light transmittance, application field, price and manufacturing process. When choosing which tube to use, it needs to be comprehensively considered according to specific application scenarios and needs.

Luverre Quartz is a manufacturer specializing in quartz tubes and other quartz items.We have over 18 years experience with the production of quartz tubes, we will be your reliable partner on quartz tubes and other quartz items.

Luverre Quartz can manufacture customized quartz tubes in various shapes, such as spiral, square, round, with processing including cutting, bending, welding, etc., and available in different colors, such as transparent quartz tubes, opaque quartz tubes, milky white quartz tubes, red quartz tubes, and so on.