BS 6323-6 CEW1 Cold Finished Electric Resistance Welded Steel Tube For Engineering Purposes
BS 6323-6 CEW1 CEW2 CEW3 CEW4 CEW5 Cold Finished Electric Resistance Welded Steel Tube For Engineering Purposes
Introduction
BS 6323-6 is a British Standard that specifies the requirements for cold finished electric resistance welded (CEW) steel tubes for engineering purposes. This standard covers five different grades of CEW steel tubes, namely CEW1, CEW2, CEW3, CEW4, and CEW5. These tubes are widely used in various engineering applications due to their excellent mechanical properties and durability.
Material and Specification
BS 6323-6 CEW steel tubes are manufactured using high-quality steel that meets the specified chemical composition and mechanical properties. The tubes are produced through electric resistance welding, which ensures a seamless and uniform structure. The standard specifies the dimensions, tolerances, and technical requirements for these tubes, ensuring their suitability for engineering purposes.
Key Features
The key features of BS 6323-6 CEW steel tubes include:
- Cold Finished: These tubes undergo a cold finishing process, which enhances their dimensional accuracy, surface finish, and overall quality.
- Electric Resistance Welded: The tubes are manufactured using electric resistance welding, ensuring a strong and reliable bond between the steel sheets.
- Diverse Grades: The standard covers five different grades (CEW1, CEW2, CEW3, CEW4, and CEW5), allowing engineers to choose the most suitable grade for their specific application.
- Excellent Mechanical Properties: BS 6323-6 CEW steel tubes exhibit excellent mechanical properties, including high tensile strength, good ductility, and superior impact resistance.
- Wide Range of Applications: These tubes find applications in various engineering fields, such as automotive, construction, machinery, and general engineering.
Chemical Composition
The following table presents the chemical composition of BS 6323-6 CEW steel tubes:
| Grade | Chemical Composition (%) |
|---|---|
| CEW1 | C: 0.17-0.24, Si: 0.10-0.35, Mn: 0.40-0.70, P: 0.040 max, S: 0.040 max |
| CEW2 | C: 0.17-0.24, Si: 0.10-0.35, Mn: 0.40-0.70, P: 0.040 max, S: 0.040 max |
| CEW3 | C: 0.17-0.24, Si: 0.10-0.35, Mn: 0.40-0.70, P: 0.040 max, S: 0.040 max |
| CEW4 | C: 0.17-0.24, Si: 0.10-0.35, Mn: 0.40-0.70, P: 0.040 max, S: 0.040 max |
| CEW5 | C: 0.17-0.24, Si: 0.10-0.35, Mn: 0.40-0.70, P: 0.040 max, S: 0.040 max |
Mechanical Properties
The following table presents the mechanical properties of BS 6323-6 CEW steel tubes:
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|
| CEW1 | 340-470 | 195 min | 24 min |
| CEW2 | 390-510 | 235 min | 22 min |
| CEW3 | 440-570 | 255 min | 20 min |
| CEW4 | 490-610 | 275 min | 18 min |
| CEW5 | 540-660 | 295 min | 16 min |
Steel Grade
BS 6323-6 CEW steel tubes are available in the following grades:
- CEW1
- CEW2
- CEW3
- CEW4
- CEW5
Application
BS 6323-6 CEW steel tubes are widely used in various engineering applications, including:
- Automotive components
- Construction machinery
- General engineering structures
- Mechanical and structural tubing
- Hydraulic systems
- Agricultural equipment
Possible Alternative Grades
While BS 6323-6 CEW steel tubes offer excellent performance, there are alternative grades available in other standards that may be suitable for specific applications. Some possible alternative grades include:
- ASTM A513 Type 1
- DIN 2393 St 37-2
- JIS G3445 STKM11A
- EN 10305-3 E195
It is important to consult the specific requirements and regulations of the application to determine the most appropriate alternative grade.


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