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

Check St 45 ERW Pipe Length Tolerances

The length tolerances of St 45 ERW pipes play a crucial role in various industrial and manufacturing applications. They ensure consistent and precise dimensions, which are essential for the accurate fitting of components in machinery and construction systems. By adhering to these tolerances, manufacturers can achieve better consistency and interchangeability of parts, reducing the need for adjustments during installation. This precision also minimizes material waste and enhances the efficiency of the production process.

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

BS 6323 Part V ERW Tubes Contain 0.25% Carbon

Carbon is an essential element in the composition of BS 6323 Part V ERW tubes. It contributes significantly to the strength and hardness of the material, making it suitable for high-pressure environments. Additionally, carbon helps maintain a balance between weldability and machinability, ensuring ease of manufacturing without compromising structural integrity.

BS 6323 Part 5 Chemical Composition

Carbon
0.4%
Silicon
0.35%
Manganese
0.9%
Phosphorous
0.05%
Sulphur
0.05%
Iron
98.9%

Mechanical Properties of BS 6323-5 Grade

The yield strength of 350 MPa indicates the stress level that the tube can withstand before permanent deformation occurs. This ensures reliable structural performance under normal operating conditions. It allows the tube to handle different loads and pressures while maintaining its shape and functionality over time.

With a tensile strength of 540 MPa, BS 6323-5 grade tubes offer excellent resistance to mechanical stress. This makes them ideal for applications requiring durability and strength. The material also provides good ductility, allowing it to be bent, shaped, and formed into complex structures without losing its integrity. This combination of properties ensures consistent quality and performance in the final product.

Mechanical Properties of BS 6323-5

Yield Strength Tensile Strength
350 MPa 540 MPa

EN 1.0408 Equivalent Grade

Standard EN
DIN 23912 EN 1.0408 / St 45

BS 6323 Grade HFS 5 Tubes Are Easy to Shape and Form

These tubes are known for their excellent formability, which allows them to be easily shaped and manufactured. Their mechanical properties include good ductility and bending strength, making them ideal for processes such as bending, flaring, and forming without cracking or weakening. This ease of shaping reduces manufacturing costs and improves production efficiency, making the process smoother and more reliable.

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

BS 6323-5 Tube Material Testing

  • 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 Is Widely Used for Automotive and Engineering Purposes

This material is extensively used in automotive and engineering applications due to its balanced combination of strength, hardness, and machinability. It typically contains 0.40% carbon, which enhances its mechanical properties. It is particularly 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 option for various engineering applications.

Application of BS 6323 Part V ERW Tubes

  • Water pipelines
  • Gas lines
  • Automotive sectors
  • Oil & Gas Industries

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