BS 6323 Part 5 Specification

BS 6323 Part 5 Specification

Table of contents

  • BS 6323 part 5 specification
  • BS 6323 Grade CFS 5 Tube Standard length tolerances
  • BS 6323 part 5 Chemical Composition
  • Mechanical Properties of BS 6323-5
  • EN 1.0408 Equivalent Grade
  • Diameter Tolerance of St 45 ERW Pipes
  • BS 6323-5 Tube Material Testing
  • Application of BS 6323 Part V ERW Tubes

BS 6323 Part 5 Specification

Grade BS 6323 Part 5
Thickness Custom
Length 12m / 6m / 6.4m
Ends Plain / Threaded / Bevelled
Processing Service
  • Welding
  • Punching
  • Cutting
  • Bending
  • Decoiling
Pipe Type ERW / CDW
Heat Treatment Stress Relieved (BK+S)
Internal Diameter Accuracy H7 / H8 / H9
Internal Surface Roughness Ra0.2~0.8um
Threads Configuration
  • B1.1 2A or 3A Inch Unified Threads
  • B1.13M 6h Metric Coarse Threads

Understanding St 45 ERW Pipe Length Tolerances

The length tolerances for St 45 ERW pipes play a crucial role in industrial and manufacturing processes. These tolerances ensure consistent and accurate lengths, which are essential for proper fitting and assembly in machinery and construction systems. Adhering to these standards helps manufacturers achieve better consistency and interchangeability of parts, reducing the need for adjustments during installation. This precision also minimizes material waste and enhances production efficiency, making it a key factor in cost-effective manufacturing.

BS 6323 Grade CFS 5 Tube Standard Length Tolerances

Component length (mm) OD 30-100 mm OD 100-254 mm
10-100 + 1.0/- 0 + 2.0/- 0
100-600 + 2.0/- 0 + 3.0/- 0
600-1200 + 3.0/- 0 + 4.0/- 0
1200-5000 + 5.0/- 0 + 6.0/- 0

Carbon Content and Its Role in BS 6323 Part V ERW Tubes

BS 6323 Part V ERW tubes contain approximately 0.25% carbon, which significantly contributes to their mechanical properties. This level of carbon increases the strength and hardness of the material, making it suitable for high-pressure environments. It also maintains a good balance between weldability and machinability, ensuring ease of manufacturing without compromising structural integrity. This makes the tubes ideal for a wide range of applications requiring durability and reliability.

Chemical Composition of BS 6323 Part 5

Carbon
0.4%
Silicon
0.35%
Manganese
0.9%
Phosphorus
0.05%
Sulfur
0.05%
Iron
98.9%

Mechanical Properties of BS 6323-5

The yield strength of 350 MPa indicates the material's ability to resist deformation under stress, ensuring structural stability in normal working conditions. This feature allows the tubes to withstand various loads and pressures over time while maintaining their shape and function. The tensile strength of 540 MPa further enhances the tube’s durability, providing excellent resistance to mechanical forces. Additionally, its ductility ensures that the material can be bent, formed, and shaped without cracking, offering flexibility in application and design.

Yield Strength Tensile Strength
350 MPa 540 MPa

EN 1.0408 Equivalent Grade

Standard EN
DIN 23912 EN 1.0408 / St 45

Formability of BS 6323 Grade HFS 5 Tubes

BS 6323 Grade HFS 5 tubes are known for their excellent formability, making them easy to shape and manufacture. They exhibit good ductility and bending strength, allowing them to be bent, flared, and formed without cracking or losing structural integrity. This property not only enhances their versatility but also reduces manufacturing costs and improves production efficiency. As a result, they are widely used in industries where complex shapes and precise designs are required.

Diameter Tolerance of St 45 ERW Pipes

T/D-ratio Tolerance limits
≥0.05 1
0.05>T/D≥0.025 1.5
<0.025 2

Material Testing for BS 6323-5 Tubes

  • Chemical Analysis
  • PMI Testing
  • Flattening Test
  • Micro and Macro Test
  • Mechanical Testing
  • Hardness Test
  • Intergranular Corrosion Test
  • Pitting Resistance Test
  • Flaring Test

EN 1.0408 Material in Automotive and Engineering Applications

EN 1.0408 material is extensively used in automotive and engineering fields due to its balanced combination of strength, hardness, and machinability. With a carbon content of about 0.4%, it offers improved mechanical properties and is suitable for components that require high strength and wear resistance, such as bolts, shafts, and gears. Its ability to undergo heat treatment makes it a versatile choice for various engineering applications.

Applications of BS 6323 Part V ERW Tubes

  • Water pipelines
  • Gas lines
  • Automotive industry
  • Oil and gas sectors

Candy Tin Box

The color matching of tinplate boxes plays an important role in the sales of goods. The first impression of consumers when they see the goods comes from the Iron Box packaging. The beautiful iron box and the comfortable color matching make people feel very comfortable. From the perspective of psychology, vision accounts for 87% of the five senses; Hearing, smell, touch and taste only account for 13%. It is better to see than to hear. So, how can we choose the matching colors of tinplate boxes to attract consumers?

The color matching of the iron box packaging mainly enables customers to perceive the packaging items of the iron box at a glance from the packaging color of the iron box. However, there are still many product packaging colors on the market that do not achieve this effect. For example, tea is generally packaged in green. Stimulating colors can attract customers' attention, such as bright red, and red is used for many wines and pastries. Pink and goose yellow are used to express the feeling of closeness and warmth. Therefore, food packaging generally uses this kind of color packaging.

Contrast can make colors bright, vivid, lively, both aesthetic and pleasure. For example, Japan's soup filling series low box packaging is a group of masterpieces based on consumer psychology. The author believes that although drugs are used to cure diseases, the pain of consumers in the process of treatment is intolerable, which gives rise to a psychological feeling of fear. In view of this, when designing the packaging iron box, the author used distinctive color contrast ingeniously to make people feel that this enema is different from those similar products with cold colors and mainly words, as if there is something appetizing in it that is not so terrible. In terms of color contrast, it is necessary to prevent fancy, messy, complicated, raw and hard masonry, and avoid the inharmonious atmosphere left in consumers' hearts.

The color matching of tinplate boxes is very skillful. A good color matching will help the product to be sold, otherwise, it will be different from the expected effect. Good designers have their own unique style in color matching.

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