February 26, 2022

Construction scaffolding steel pipe specification table

1. Specifications of scaffolding steel pipes: diameters are Φ3.0, Φ2.75, Φ3.25, Φ2.5; lengths are generally 1-6 meters and half a meter, and can be processed according to customer requirements. 2. The implementation standard of scaffolding steel pipe: SY/T5768-95 GB/T3091-2001. 3. The material of scaffolding steel pipe: Q195, Q215 or Q235. […]
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February 22, 2022

Detailed explanation of tubing and casing markings

11 mark 11.1 General 11.1.1 Products manufactured in accordance with this specification shall be marked by the manufacturer in accordance with this specification. 11.1.2 For all manufacturers except threaders, the marking rules in Chapter 11 except 11.6 apply, and for threaders the marking rules in 11.5 and 11.6 and Table […]
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February 14, 2022

Drill pipe related terms and symbols analysis

bevel diameter Rotary shoulder connection seals the outer diameter of the shoulder. defect Defects of sufficient size are the basis for product rejection in accordance with the guidelines set forth in this International Standard. drill pipe Drill pipe body with butt welded joints. drill pipe body There are seamless steel […]
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February 8, 2022

Introduction to the knowledge of seamless steel pipes and welded pipes

Seamless steel pipes are widely used. The general-purpose seamless steel pipe is rolled from ordinary carbon structural steel, low-alloy structural steel or alloy structural steel. .2. According to different uses, it is divided into three categories: a. According to chemical composition and mechanical properties; b. According to mechanical properties; C. […]
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January 24, 2022

Mechanical properties of steel pipes

The mechanical properties of steel are important indicators to ensure the end-use properties (mechanical properties) of steel, which depend on the chemical composition and heat treatment system of the steel. In the steel pipe standard, according to different use requirements, the tensile properties (tensile strength, yield strength or yield point, […]
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January 12, 2022

Various inspection methods of oil casing

Petroleum casing is a high-end product produced by steel pipes. There are many varieties of casing, and there are many types and requirements of casing pipe end buttons. The button types that can be processed include STC, LC, BC,and other button types. The production and installation process of oil casing […]
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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 […]
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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 […]
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