January 4, 2022

Inspection test of tubing and casing

Inspection, test Test equipment In order to ensure that all products meet the requirements of this standard, the manufacturer shall determine the appropriate calibration frequency for the test equipment. If the equipment required to be calibrated or verified in accordance with the provisions of this standard is in an abnormal […]
December 29, 2021

Detailed explanation of Pipe and Tube

PIPE is a circular section tube conforming to ASME B36.10M and ASME B36.19M. There are some special PIPEs that do not meet the dimensions in these tables, as well as circular tubes. The nominal outer diameter corresponds to the actual outer diameter. A TUBE is a hollow object with a […]
December 21, 2021

Tubing coupling requirements

The coupling should be a seamless pipe, and its steel grade, type and heat treatment should be the same as that of the pipe. When the coupling is electroplated, the electroplating process should be controlled to minimize hydrogen absorption. The structure of the tubing coupling is: the end of the […]
December 13, 2021

Detailed introduction of 16Mn seamless pipe

16Mn seamless steel pipe is a relatively important material for seamless steel pipe, and it is also a relatively useful steel. Recently, especially in capital construction pipelines, houses, and railway bridges, it has given full play to a relatively huge effect. Generally, the original factory paints the color code on […]
December 8, 2021

Knowledge and understanding of carbon steel pipes

Carbon steel pipe is made of steel ingots or solid round steel through perforation into capillary tube, and then made by hot rolling, cold rolling or cold drawing. Carbon steel pipe has an important position in my country’s steel pipe industry. General carbon steel pipe: It is made of 10, […]
December 2, 2021

Terms, definitions, symbols and abbreviations for tubing and casing

Terms, definitions, symbols and abbreviations 1.1 Terms and definitions This International Standard adopts the terms and definitions listed in the heat treatment operation section of ASTM A941 and below. 1.1.1 accessory material Seamless standard casing or oil pipe, seamless thick-walled pipe or mechanical pipe, bar material or hot forged material […]
November 24, 2021

What factors affect the performance of galvanized steel pipe

Galvanized steel pipes are welded steel pipes with a hot-dip galvanized or electro-galvanized layer on the surface. Galvanizing can increase the corrosion resistance of the steel pipe and prolong the service life. Galvanized pipe has a wide range of uses. In addition to line pipes for conveying water, gas, oil […]
November 16, 2021

Introduction to basic knowledge of alloy structural steel

In addition to iron and carbon, steel is called alloy steel by adding other alloying elements. An iron-carbon alloy formed by adding an appropriate amount of one or more alloying elements on the basis of ordinary carbon steel. According to the different added elements and adopting appropriate processing technology, special […]
November 8, 2021

Basic knowledge about oil pipeline

Basic knowledge about oil pipeline 1. Explanation of special terms related to petroleum pipeline API: It is the abbreviation of American Petroleum Institute in English, and Chinese means American Petroleum Institute. OCTG: It is the abbreviation of Oil Country Tubular Goods in English, which means special oil pipes in Chinese, […]