Standard ASTM A53/A53M/ASME SA-53/SA-53M
Application: suitable for bearing and bearing parts, also for steam, water, gas and air pipelines.
Seamless steel tube manufacturing process.According to its manufacturing process, seamless steel tube is divided into hot rolled seamless steel tube, cold dr...
As the price continues to rise transaction support gradually weakened, coupled with the recent macroeconomic factors of the disturbance of the impact of the price is gradually revised, so the follow-up market price began to gradually become rational.On the other hand, with the gradual accumulatio...
Seamless steel tubes for low and medium pressure boilers (GB3087-2018) are high quality carbon structural steel hot-rolled and cold-drawn (rolled) seamless steel tubes, which are used for manufacturing superheated steam pipes, boiling water pipes for various structures of low and medium pressure ...
The holiday notice for Qingming Festival 2022 is as follows:
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Boiler tube is a kind of seamless tube. The manufacturing method is the same as seamless pipe, but there are strict requirements on the type of steel used to manufacture steel pipe. According to the use of temperature is divided into two kinds of general boiler tube and high-pressure boiler tube....
Today we introduce the commonly used oil seamless steel pipe, oil pipe (GB9948-88) is suitable for oil refinery furnace tube, heat exchanger and seamless pipe.
Steel pipe for geological drilling (YB235-70) is used for core drilling by geological department, which can be divided into drill pipe, d...
On March 8, 2022, we celebrate the international Working Women’s Day, an annual festival exclusively for women.As a celebration of women in the economic, political and social fields have made significant contributions and great achievements and set up a festival, also known as “Inter...
Longtaitou festival is a traditional Chinese festival held on the second day of the second month of the Chinese calendar.
In the north, The second of February is also called “Dragon Head Day”, also known as “Spring Dragon Festival”.It symbolizes the return of spring and t...
Last week domestic steel market price weak operation.Overall, end-market demand is weak at the moment, but as time goes on, this phenomenon will gradually improve.On the other hand, the overall supply of the northern market is still affected by the Winter Olympics, so the incremental part of the ...
Seamless steel pipe is a kind of long steel with hollow section and no joint around.The steel pipe has a hollow section and is widely used for conveying fluid pipelines, such as conveying oil, natural gas, gas, water and some solid materials.Compared with solid steel such as round steel, steel pi...
1、chemical composition test
1.according to the chemical composition and mechanical properties of domestic seamless pipe, such as 10, 15, 20, 25, 30, 35, 40, 45 and 50 steel chemical composition should comply with the provisions of GB/T699-88.Imported seamless pipes shall be inspected according ...
The outer diameter of hot-rolled seamless pipe is generally greater than 32mm, and the wall thickness is 2.5-200mm. The outer diameter of cold-rolled seamless steel pipe can reach 6mm, and the wall thickness can reach 0.25mm. The outer diameter of thin-walled pipe can reach 5mm and the wall thick...
2021 has passed and a New Year has begun.Looking back on the year, the steel market has had its ups and downs.In the first half of the year, the global economic recovery, the rapid growth of domestic real estate and fixed asset investment, driving the demand for steel, steel prices into the risin...
The heat treatment process of steel pipe mainly includes the following 5 categories:
1, quenching + high temperature tempering (also known as quenching and tempering)
The steel pipe is heated to the quenching temperature, so that the internal structure of the steel pipe is transformed into auste...
Alloy steel pipe is mainly used in power plant, nuclear power, high pressure boiler, high temperature superheater and reheater and other high pressure and high temperature pipeline and equipment, it is made of high quality carbon steel, alloy structure steel and stainless heat-resistant steel mat...
1 .Brief introduction of structural pipe
Seamless pipe for structure (GB/T8162-2008) is used for the general structure and mechanical structure of the seamless pipe.Seamless steel tube is divided into a variety of different uses.
Stainless steel seamless pipe for structure (GB/T14975-2002) is a ...
Petroleum steel pipe is a kind of long steel with hollow section and no joint around, while petroleum cracking pipe is a kind of economic section steel.Role: widely used in the manufacture of structural and mechanical parts, such as oil drill pipe, automobile drive shaft, bicycle frame and steel ...
Implement GB 3087, GB/T 5310, DIN 17175, EN 10216, ASME SA-106/SA-106M, ASME SA-192/SA-192M, ASME SA-209/SA-209M, ASMESa-210 /SA-210M, ASME SA-213/SA-213M, ASME SA-335/SA-335M, JIS G 3456, JIS G 3461, JIS G 3462 and other related standards.
Standard name
Standard
Common grade of steel
Seamle...
Standards referred to as”
There are many standards for Steel products in the United States, mainly including the following:
ANSI American national standard
AISI American Institute of Iron and Steel standards
ASTM Standard of American Society for Materials and Testing
ASME Standard
AMS Aeros...
1.1 Standard classification used for steel pipes:
1.1.1 By region
(1) Domestic standards: national standards, industry standards, corporate standards
(2) International standards:
United States: ASTM, ASME
United Kingdom: BS
Germany: DIN
Japan: JIS
1.1...
GB13296-2013 (Seamless steel pipes for boilers and heat exchangers). Mainly used in boilers, superheaters, heat exchangers, condensers, catalytic tubes, etc. of chemical enterprises. Used high-temperature, high-pressure, corrosion-resistant steel pipe. Its representative materials are 0Cr18Ni9, 1...
GB/T8162-2008 (Seamless steel pipe for structure). Mainly used for general structure and mechanical structure. Its representative materials (brands): carbon steel #20,# 45 steel; alloy steel Q345B, 20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo, etc. To ensure the strength and flattening test.
GB/T8163-20...