Solid solution treatment of stainless steel pipes

2023-10-16

The intermediate aging method is heated to (760±15)℃ after solid solution treatment and kept for 90 minutes. Because Cr23C6 carbide precipitates from the austenite, the carbon and alloy element content in the austenitic 904L stainless steel pipe is reduced. , raise the Ms point to 70°C and then cool to room temperature to obtain the martensite + α ferrite + retained austenite structure. The residual austenite will be decomposed after subsequent aging at 510°C.

Preparation work before welding stainless steel pipe

2023-10-16

Stainless steel pipe is a type of pipe that is commonly used. Generally, in order to ensure the quality of the product, we need to perform welding operations before use. It is very important to master the correct operation method, which is also beneficial to our later use.

What are the factors that cause corrosion of stainless steel plates?

2023-10-16

Stainless steel plate is actually a product that is not prone to corrosion. Unless it is in some serious cases, it is impossible for any product to be corrosion-free. If our stainless steel plate is corroded, it may affect its normal performance.

Applications of carbon steel coils

2023-10-16

Carbon steel coils have high strength and toughness and are easy to process and weld, so they are widely used in construction, manufacturing, transportation, chemical industry and other fields. Specifically, carbon steel coils can be used in the following areas:

What are the classifications of carbon steel pipes?

2023-10-16

In addition to general steel pipes, low- and medium-pressure boiler steel pipes, high-pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, and other steel pipes, cold-rolled (rolled) carbon steel pipes also include carbon thin-walled steel pipes, alloy thin-walled steel pipes, and stainless steel pipes. Rusty thin-walled steel pipes, special-shaped steel pipes. The outer diameter of hot-rolled seamless steel pipes is generally greater than 32mm, and the wall thickness is 2.5-75mm. The outer diameter of cold-rolled seamless steel pipes can be up to 6mm, and the wall thickness can be up to 0.25mm. The outer diameter of thin-walled pipes can be up to 5mm, and the wall thickness is less than 0.25mm. Cold rolling has higher dimensional accuracy than hot rolling.

Product features of color coated rolls

2023-10-16

It has good performance-price ratio, durable performance and extremely competitive price. Therefore, whether it is architectural designers, engineers or manufacturers, galvanized steel sheets have been widely used in industrial buildings, steel structures and civil facilities, such as garage doors, gutters and roofs.

What is corrugated board?

2023-10-16

Corrugated board, also called profiled board, is made of color-coated steel sheets, galvanized sheets and other metal sheets that are rolled and cold-bent into various corrugated profiled boards. It is suitable for industrial and civil buildings, warehouses, special buildings, and large-span buildings. Roofs, walls and interior and exterior wall decoration of steel structure houses. It has the characteristics of light weight, high strength, rich color, convenient and quick construction, earthquake resistance, fireproof, rainproof, long life, maintenance-free, etc., and has been widely promoted and used.

H-shaped steel production method

2023-10-16

In the absence of a universal rolling mill, sometimes in order to meet the urgent needs of production and construction, an ordinary two-roll rolling mill can also be equipped with a vertical roller frame to form a universal pass rolling H-shaped steel. When H-shaped steel is rolled in this way, the dimensional accuracy of the product is low, it is difficult to form a right angle between the flange and the web, the cost is high, and the specifications are small. It is extremely difficult to roll H-shaped steel for columns, so there are not many users.