Shanghai Zhongzeyi Metal Materials Co., Ltd.
12
2024
/
01
03
2024
/
01
Steel pipe material classification
Steel pipes can be divided into carbon pipes, alloy pipes, stainless steel pipes, etc. according to the pipe material (ie steel type). Carbon tubes can be divided into ordinary carbon steel tubes and high-quality carbon structural tubes. Alloy pipes can be divided into: low alloy pipes, alloy structural pipes, high alloy pipes, and high strength pipes. Bearing tubes, heat-resistant and acid-resistant stainless tubes, precision alloy (such as Kovar alloy) tubes and high-temperature alloy tubes, etc.
06
2023
/
03
Material: There are many kinds of materials for steel pipes. Common ones include carbon steel pipes, alloy steel pipes and stainless steel pipes. Different materials have different properties and uses, so choose the right material based on specific needs.
14
2023
/
02
Stainless steel is an alloy of Iron with a minimum of 10.5% Chromium. Chromium produces a thin layer of oxide on the surface of the steel known as the passive layer. This prevents any further corrosion of the surface. Increasing the amount of Chromium gives an increased resistance to corrosion. Stainless steel also contains varying amounts of Carbon, Silicon and Manganese. Other elements such as Nickel and Molybdenum may be added to impart other useful properties such as enhanced formability and increased corrosion resistance. SS sheet are widely used in elevator cabin, building facades, panels and cladding, Luxurious doors, wall decoration, advertisement nameplates, furniture, kitchen ware, sanitary ware, ceiling, corridor, hotel hall, and various stainless steel series.
14
2023
/
02
Temperature requirements for submerged arc welded straight seam steel pipes
The welding process used for submerged arc welded straight seam steel pipe is submerged arc welding technology, which adopts filler welding and particle protection flux submerged arc. The diameter of production can reach 1500mm. LSAW is the English abbreviation of submerged arc welded straight seam steel pipe. The production process of submerged arc welded straight seam steel pipe includes JCOE forming technology and coil forming submerged arc welding technology. When the diameter is large, two steel plates may be used for rolling, which will form the phenomenon of double welds.
14
2023
/
02
Reducing misjudgment of high-pressure boiler pipe eddy current testing
Reducing high-pressure boiler pipe eddy current testing misjudgment several key factors: (1) Coil eddy current testing and inspection center roller consistency in relation to the accuracy inspection rate high pressure boiler tube inspection system of the entire product, the coil center alignment requirements than the sample through holes circumferentially poor sensitivity ≤2dB, signal to noise ratio ≥ 8dB.
14
2023
/
02
CONTACT US
Tel : +8618616920766
Email : lynn@cnzzysteel.com
WhatsApp : +8618616920766
Address: Floor 1, Building 2, No. 1876 Chenqiao Road, Fengxian District, Shanghai
GET A FREE QUOTE
Copyright : Shanghai Zhongzeyi Metal Materials Co., Ltd. Powerby :300.cn jinan2 SEO business license
