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Commonly used valve materials
The classification of valves can be divided by function, material, structure, pressure, diameter, connection method, and transmission method. The classification based on valve material is a common method of classification. According to the material of the valve body, valves can be divided into metal valves, non-metallic valves, and metal valve body lined valves. And metal valves are the most common and commonly used valves.
Metal valves refer to valves made of metal materials, such as cast iron globe valves, cast steel gate valves, copper ball valves, etc.
The following lists the codes, Chinese names, applicable media, and operating temperature ranges of several stainless steel valve materials.
| MATERIAL | Applicable Medium | Operating temperature range |
| WCB |
Non corrosive applications, including water, oil, and gas
|
temperature range： -30℃
~425℃
|
| LCB |
Low temperature applications, with temperatures as low as
46 ℃, cannot be used for temperature
Occasions above 340 ℃
|
|
| LC3 |
Low temperature applications, with temperatures as low as
-101 ℃, cannot be used for temperature
Occasions with temperatures above 340 ℃
|
|
| CF3 | Corrosive or non corrosive applications | Temperature range up to425℃ |
| CF3M | Corrosive or non corrosive applications | Temperature range up to454℃ |
| CN7M | Has excellent resistance to hot sulfuric acid corrosion | Temperature up to425℃ |
| M35-1 | Weldable grade, with excellent resistance to corrosion from all ordinary organic acids and salt water, as well as high resistance to corrosion from most alkaline solutions | Temperature up to400℃ |
| N7M | Especially suitable for various concentrations and temperatures of hydrofluoric acid in processors, with excellent resistance to sulfuric acid and phosphoric acid corrosion | Temperature up to649℃ |
| CWW6M | It has excellent resistance to corrosion in strong oxidizing environments and has excellent characteristics at high temperatures. It has high corrosion resistance to formic acid (formic acid), phosphoric acid, sulfite, and sulfuric acid | Temperature up to649℃ |
| CY40 | Performs well in high-temperature applications and exhibits excellent corrosion resistance for highly corrosive fluid media | |
| C6 |
Non corrosive applications, including water, oil, and gas
|
temperature range： -30℃-
593℃
|
| WC9 |
Non corrosive applications, including water, oil, and gas |
temperature range： -30℃-
593℃
|
| C5 | Mild corrosive or corrosive applications and non corrosive applications |
temperature range： -30℃-
649℃
|
| C12 | Mild corrosive or corrosive applications and non corrosive applications |
temperature range： -30℃-
649℃
|
| CAGNM | Corrosive applications |
temperature range： -30℃-
482℃
|
| CA15 | Corrosive applications | Temperature range up to704℃ |
| CF8M | Corrosive or ultra low or high temperature non corrosive applications |
Temperature range: -268 ℃! To 649 ℃, a carbon content of 0.04% or higher must be specified for temperatures above 425 ℃
|
| CF8C | Mainly used for high-temperature and corrosive applications | Temperature range: -268 ℃ to 649 ℃, with a carbon content of 0.04% or higher specified for temperatures above 540 ℃ |
| CF8 | Corrosive or ultra low or high temperature non corrosive applications | Temperature range: -268 ℃! To 649 ℃, a carbon content of 0.04% or higher must be specified for temperatures above 425 ℃ |
| C6 | Non corrosive applications, including water, oil, and gas |
temperature range： -30℃-
593℃
|
| WC9 | Non corrosive applications, including water, oil, and gas |
temperature range： -30℃-
593℃
|
| C5 | Mild corrosive or corrosive applications and non corrosive applications |
temperature range： -30℃-
649℃
|
| C12 | Mild corrosive or corrosive applications and non corrosive applications |
temperature range： -30℃-
649℃
|
| CAGNM | Corrosive applications |
temperature range： -30℃-
482℃
|
| CA15 | Corrosive applications | Temperature range up to704℃ |
| CF8M | Corrosive or ultra low or high temperature non corrosive applications |
Temperature range: -268 ℃! To 649 ℃, a carbon content of 0.04% or higher must be specified for temperatures above 425 ℃
|
| CF8C | Mainly used for high-temperature and corrosive applications | Temperature range: -268 ℃! To 649 ℃, a carbon content of 0.04% or higher must be specified for temperatures above 425 ℃ |
| CF8 | Corrosive or ultra low or high temperature non corrosive applications | Temperature range: -268 ℃! To 649 ℃, a carbon content of 0.04% or higher must be specified for temperatures above 425 ℃ |
| C6 | Non corrosive applications, including water, oil, and gas |
temperature range： -30℃-
593℃
|
| WC9 | Non corrosive applications, including water, oil, and gas |
temperature range： -30℃-
593℃
|
| C5 | Mild corrosive or corrosive applications and non corrosive applications |
temperature range： -30℃-
649℃
|
| C12 | Mild corrosive or corrosive applications and non corrosive applications |
temperature range： -30℃-
649℃
|
| CAGNM | Corrosive applications |
temperature range： -30℃-
482℃
|
| CA15 | Corrosive applications | Temperature range up to704℃ |
| CF8M | Corrosive or ultra low or high temperature non corrosive applications |
Temperature range: -268 ℃! To 649 ℃, a carbon content of 0.04% or higher must be specified for temperatures above 425 ℃
|
| CF8C | Mainly used for high-temperature and corrosive applications | Temperature range: -268 ℃! To 649 ℃, a carbon content of 0.04% or higher must be specified for temperatures above 425 ℃ |
| CF8 | Corrosive or ultra low or high temperature non corrosive applications | Temperature range: -268 ℃! To 649 ℃, a carbon content of 0.04% or higher must be specified for temperatures above 425 ℃ |
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