ASTM A519 Carbon Steel Pipe

Introduction

ASTM A519 standard is an important standard established by the American Society for Testing and Materials (ASTM), which specifies the technical requirements for seamless carbon and alloy steel mechanical tubes, including specifications, dimensions, performance requirements, and testing methods. ASTM A519 carbon steel pipes are produced in accordance with this standard, possessing excellent mechanical properties, processing performance, and corrosion resistance, making them widely used in mechanical manufacturing, construction engineering, petrochemical industries, and other fields.

Overview of ASTM A519 Standard

The ASTM A519 standard, developed by ASTM, aims to standardize the production and use of seamless carbon and alloy steel mechanical tubes. This standard covers aspects such as tube grades, dimensions, performance requirements, testing methods, marking, packaging, and transportation.

Key Features of ASTM A519 Standard:

Broad Coverage: This standard encompasses various types of seamless carbon and alloy steel mechanical tubes, including hot-rolled and cold-drawn tubes, as well as round, square, and rectangular tubes.
Stringent Performance Requirements: The standard imposes rigorous requirements on the mechanical properties, processing performance, and corrosion resistance of the tubes to ensure quality.
Standardized Testing Methods: Unified testing methods are specified in the standard for testing the performance of tubes.

Chemical Composition Table

The ASTM A519 standard specifies the chemical composition range of ASTM A519 carbon steel pipes, as shown in the table below:

Element Chemical Composition Range (%)
Carbon (C) ≤ 0.60
Manganese (Mn) ≤ 0.80
Phosphorus (P) ≤ 0.040
Sulfur (S) ≤ 0.050
Silicon (Si) ≤ 0.30

Mechanical Performance Table

The ASTM A519 standard specifies the mechanical performance indicators of ASTM A519 carbon steel pipes, as shown in the table below:

Indicator Minimum Value
Tensile Strength (MPa) 240
Yield Strength (MPa) 165
Elongation (%) 20

Performance Characteristics

ASTM A519 carbon steel pipes possess excellent mechanical properties, processing performance, and corrosion resistance.

Mechanical Properties: The tensile strength, yield strength, and elongation of ASTM A519 carbon steel pipes are superior to those of ordinary carbon steel pipes, enabling them to withstand higher loads and impacts.
Processing Performance: ASTM A519 carbon steel pipes exhibit good welding and cold processing performance, making them easy to process into various shapes and sizes.
Corrosion Resistance: ASTM A519 carbon steel pipes have certain corrosion resistance, able to resist corrosion from atmospheric, water, acidic, and alkaline media to some extent.

Applications

ASTM A519 carbon steel pipes are widely used in mechanical manufacturing, construction engineering, petrochemical industries, and other fields.

Mechanical Manufacturing: Commonly used in manufacturing mechanical parts, bearings, hydraulic fittings, etc.
Construction Engineering: Used in structural supports, pipeline systems, etc.
Petrochemical Industries: Commonly used in pipelines, heat exchangers, etc.

Production Process

The production process of ASTM A519 carbon steel pipes mainly includes the following steps:

Raw Material Preparation: Cutting and testing qualified steel billets.
Rolling: Heating the steel billets and rolling them into required tube blanks using a rolling mill.
Piercing: Heating the tube blanks and piercing them into hollow tubes on a piercing machine.
Expanding: Heating the hollow tubes and expanding them to the required size on an expanding machine.
Straightening: Straightening the expanded pipes to eliminate bending.
Heat Treatment: Performing annealing, normalizing, or other heat treatments on the pipes to improve their properties.
Inspection: Conducting visual inspection, dimensional inspection, mechanical property inspection, etc., to ensure the quality of the pipes.

Material Selection and Application Guide

When selecting ASTM A519 carbon steel pipes, appropriate pipe grades, sizes, and performance requirements should be chosen based on specific application needs.

Pipe Grades: The ASTM A519 standard specifies multiple pipe grades, each with different mechanical properties and corrosion resistance. Suitable pipe grades should be selected according to usage conditions.
Pipe Sizes: The ASTM A519 standard specifies various pipe sizes, and suitable pipe sizes should be selected based on actual usage conditions.
Pipe Performance Requirements: The ASTM A519 standard specifies performance requirements for pipes, including mechanical properties, processing performance, and corrosion resistance. Pipes meeting performance requirements should be selected based on usage conditions.

When using ASTM A519 carbon steel pipes, the following points should be noted:

  • Avoid using in harsh environments with high temperature and high pressure.
  • Regularly inspect the condition of pipelines and promptly repair any damages.
  • Strictly adhere to relevant safety operating procedures.

Conclusion

ASTM A519 carbon steel pipes are high-performance and widely used pipe materials. When selecting and using ASTM A519 carbon steel pipes, specific application needs should be considered to ensure optimal performance and safety.

This comprehensive article provides insights into various aspects of ASTM A519 carbon steel pipes, aiming to offer readers guidance and practical knowledge for their application and usage.

Quick Contact

Mail Me

sales@shangangsteelsupply.com

WhatsApp

+86 153 1871 5360

If any steel product meet your demand, please share with me material grade or other requirement.