ống bảo vệ kim loại
| aterial | normal temperature | Maximum temperature | Characteristic |
|---|---|---|---|
| SUS304 | 900℃ | 1000℃ | 18% chrome, 8% nickel steel. Excellent corrosion resistance and heat resistance. Weak against sulfur and reducing gases. |
| SUS316 | 900℃ | 1000℃ | Contains molybdenum and has excellent resistance to heat, acid and alkali. Better corrosion resistance than SUS304. |
| SUS310S | 1000℃ | 1150℃ | High in nickel and chromium components, excellent in heat resistance. Weak against high-temperature, high-concentration gases containing sulfur. |
| NCF600 (Inconel 600) | 1050℃ | 1150℃ | Nickel alloy with heat resistance equivalent to SUS310S. Relatively suitable for zinc and city gas, but weak against sulfur. |
| SUH446 (Sandvik P4) | 1000℃ | 1200℃ | Ferritic Cr steel. Excellent resistance to heat and corrosion, and resistant to sulfur and reducing gases. |
| Canthal | 1100℃ | 1350℃ | High mechanical strength at high temperature. Resistant to oxidizing atmosphere, sulfide gas and carbon gas. Cr22, AL5.3% rest Fe. |
| Titanium | 250℃ | 500℃ | Chemical corrosion resistance is superior to SUS304. At high temperatures, it becomes brittle. |
| SUS316L | 900℃ | 1000℃ | Steel with less carbon content than SUS316. It is a grain boundary corrosion resistant material. |
| Hastelloy C | 1000℃ | 1100℃ | Excellent against ferric chloride, cupric chloride, and chlorine gas. |
| Teflon coating | 200℃ | 250℃ | SUS304 coated with FEP resin. High chemical resistance at low temperatures. Up to 2m is possible. |
| KTA-KU50 | 1150℃ | 1200℃ | Co-based alloy. Excellent heat resistance and wear resistance. Resistant to sulfur gas, vanadium, etc. |
ống bảo vệ phi kim loại
| Material | normal temperature | Maximum temperature | Characteristic |
|---|---|---|---|
| rigid vinyl | 60°C | 100℃ | For low temperature (but -10°C or less is not possible). Suitable for corrosive liquids. |
| quartz glass | 1000℃ | 1050℃ | It has a small coefficient of thermal expansion and heat capacity, and is resistant to thermal shock. Weak against alkali and strong against acid. Hydrogen and reducing gases penetrate. |
| Alumina at most (PT1) | 1500℃ | 1550℃ | Great airtightness. Resistant to molten metal and combustion gas. Weak against metal oxides and alkalis. |
| Pure sintered alumina (PT0) | 1600℃ | 1900℃ | Withstands molten metal, glass and lead slag. Great airtightness. Weak against thermal shock. |
| silicon carbide | 1400℃ | 1700℃ | Resistant to thermal shock. Lack of airtightness. Conducts electricity at high temperatures. |
| silicon nitride | 1200℃ | 1600℃ | Resistant to acids and acid salts, and resistant to thermal shock. Weak against mechanical impact. Resistant to melting of non-ferrous metals. |
| teflon tube | 200℃ | 250℃ | High chemical resistance at low temperatures. (FEP resin) can also be manufactured with a flange. |