QINGDAO HONGDI GROUP
How to deal with rust stains on the surface of seamless steel pipes?
2023-10-19
Will the surface of seamless steel pipes rust? How to deal with rust? Rust is natural. The key is the length of time. External factors can also cause products to rust. For example, if it is used for longer than 3-5 years, the internal moisture will cause rust from the inside to the outside. The other is products. The plastic layer on the natural surface is damaged, and the damaged parts are exposed to rain and moist air will form rust.
Does galvanized steel strip need to be cleaned?
2023-10-18
Galvanized steel strip is widely used and has become an indispensable part of our lives. How should we clean hot-dip galvanized steel strip products in our daily lives?
Advantages and uses of stainless steel pipes
2023-10-17
Stainless steel pipe in heat exchangers should have been developed in the 1970s. Stainless steel heat exchangers have many advantages over general heat exchangers
How to maintain stainless steel coils?
2023-10-17
Stainless steel coil is a steel product with good corrosion resistance, beautiful appearance and long service life. To maintain its good use effect and extend its service life, proper maintenance is required. The following are the maintenance methods of stainless steel coils:
2023-04-13
Stainless steel strip is a thin steel plate supplied in coils, also called strip steel. There are imported and domestic products, divided into hot-rolled and cold-rolled. According to the needs of different users, we can also order a variety of special-shaped steel materials.In order to ensure that the yield strength, tensile strength, elongation and hardness of various stainless steel coils meet the requirements, the stainless steel coils must undergo heat treatment such as annealing, solution treatment, and aging treatment before delivery.
2023-04-13
Q1. Can I have a sample order for Stainless steel bar products? A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
2023-04-13
Galvanized steel is mild steel with a coating of zinc. The zinc protects the steel by providing cathodic protection to the exposed steel, so should the surface be damaged the zinc will corrode in preference to the steel. The following are some specifications that we often export, for reference only, if you have special requirements, we can customize, we will have professional designers to provide you with the most satisfactory style.
2023-04-13
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.
