BS 6323 Part 5 Specification

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BS 6323 Part 5 Specification

Table of contents

  • BS 6323 Part 5 Overview
  • Standard Length Tolerances for BS 6323 Grade CFS 5 Tubes
  • Chemical Composition of BS 6323 Part 5
  • Mechanical Properties of BS 6323-5
  • EN 1.0408 Equivalent Grade
  • Diameter Tolerance for St 45 ERW Pipes
  • Material Testing for BS 6323-5 Tubes
  • Applications of BS 6323 Part V ERW Tubes

Overview of BS 6323 Part 5

BS 6323 Part 5 is a British Standard that specifies the requirements for seamless and welded steel tubes used in mechanical and engineering applications. These tubes are typically used in high-pressure environments where structural integrity and reliability are essential. The standard covers various aspects such as material composition, dimensions, mechanical properties, and testing procedures to ensure quality and performance.

Standard Length Tolerances for BS 6323 Grade CFS 5 Tubes

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

Chemical Composition of BS 6323 Part 5

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

Mechanical Properties of BS 6323-5

The yield strength of 350 MPa ensures that the tube can withstand significant stress before permanent deformation occurs. This makes it ideal for use in structures that require consistent strength under load. The tensile strength of 540 MPa further enhances its durability, allowing it to handle heavy loads without failure. Additionally, the material exhibits good ductility, making it suitable for bending, forming, and other manufacturing processes without cracking or losing structural integrity.

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

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

Application of BS 6323 Part V ERW Tubes

  • Water pipe lines
  • Gas lines
  • Automobile Sectors
  • Oil & Gas Industries
  • Construction and Engineering Projects

These tubes are widely used in various industries due to their high strength, good formability, and resistance to corrosion. They are especially popular in automotive and engineering sectors where precision and reliability are crucial. Whether for pipelines, structural supports, or mechanical components, BS 6323 Part V ERW tubes offer a reliable and cost-effective solution for demanding applications.

Pipe Flanges And Fittings

Slip On Flanges,Slip On Pipe Flanges,Long Weld Neck Flanges,Lap Joint Flanges

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