BACKPrecision seamless steel pipe
Standard for finishing rolled pipes
Description:Fine rolled pipe is a kind of seamless steel pipe made by cold drawing or cold rolling process, with high appearance finish, accurate size and good mechanical properties. It has the following characteristics:
1. Accurate size: Precision process and equipment are used in the production process of fine rolled pipe, which can obtain highly accurate outer diameter and wall thickness to meet the requirements of precision machining in different fields.
2. High finish: the surface of the finishing rolled pipe is fine treated, with high finish, no oxide skin and black spots, which can effectively improve the service life and appearance quality of the material.
3. Good mechanical properties: the wall thickness of the finishing rolled pipe is uniform, high strength, good toughness, and has high tensile strength and impact toughness, which can adapt to various mechanical and structural requirements.
parameters
Fine rolled pipe is a kind of seamless steel pipe with high precision and high finish, which has the characteristics of precise size, high finish and good mechanical properties. Its implementation standards include GB/T 8713, ASTM A519, etc., which are strict and adopt advanced production process and quality control technology. Finishing rolled tubes are widely used in machinery manufacturing, precision instruments, automotive parts and other fields, and have made important contributions to the development of industry and technological progress.
introduction
The execution standards of finishing rolled pipes include GB/T 8713, ASTM A519, etc. Among them, GB/T 8713 is suitable for mechanical manufacturing, automotive parts and other fields, ASTM A519 is suitable for mechanical and structural requirements.
1. GB/T 8713
GB/T 8713 is a national standard, suitable for machinery manufacturing, auto parts and other fields, its requirements include:
(1) The chemical composition shall meet the prescribed requirements.
(2) The outer diameter, wall thickness, length, deviation and surface quality shall meet the standard requirements.
(3) High mechanical performance requirements, different materials of tensile strength, yield strength, elongation and other indicators are different.
2. ASTM A519
ASTM A519 is the American standard for steel pipe for mechanical and structural requirements, including:
(1) Chemical composition, mechanical properties, appearance and other requirements.
(2) The manufacturing process should be advanced, and the manufacturing equipment and inspection equipment should meet the requirements.
(3) Strictly carry out physical and chemical analysis to ensure the stability of material quality.
