News

Steel billets continue to rise, and the steel market ushers in a small wave of price hikes (1)

During the Qingming Festival, the steel market swept away the haze. Supported by the rise in steel billets, the national spot steel market has reached a "small peak" after the holiday, with construction steel prices increasing one after another. According to data statistics, the average price of HRB400 thread steel in the main national market has risen by 79 yuan/ton to 2653 yuan/ton from the 5th to the 6th, and the Shijiazhuang market rose by 170 yuan/ton on the same day. In addition, the average prices of hot rolling and wire rod have increased by 83 yuan/ton and 66 yuan/ton respectively in the past two days.

2024-03-20

Steel billets continue to rise, and the steel market ushers in a small wave of price hikes (II)

In addition, steel inventories in March were significantly lower than the same period last year, providing support for prices. According to institutional data, the social inventory of major steel products in China at the end of March was 11.08 million tons, a 12% decrease compared to the previous month and a 27% decrease compared to the same period last year. In particular, the inventory of rebar and wire rod decreased significantly year-on-year.

2024-03-20

Color steel plate installation (I)

According to the drawings provided by the design institute, our company will carry out layout design to determine the installation direction of the board, the length and number of pieces of the board, and the number of accessories (brackets, plugs, self tapping screws, rivets, sealing paste or sealing strips). The node details related to the roof panel mainly include: ridge nodes, eaves nodes, parapet nodes, door and window nodes, and are also related to the size of each board. The installation direction of the board is against the dominant wind direction.

2024-03-20

Color steel plate installation (II)

The types, specifications, models, and installation positions of various panels should be accurate and there should be no omissions. The types, specifications, models, and installation positions of various fasteners should be omitted or loose. The surface of various panels and fasteners should be free of defects such as damage, holes, holidays, coating peeling, scratches, pollution, and warping. In heavy rain weather, there should be no leakage during inspection.

2024-03-20

The causes of stains on the surface of color steel strips

During the actual construction of the color steel strip production line, it is common to see stains or magazines sticking to the surface of the coating after curing. The forms and colors of the stains are different, and some of them can be wiped off with fabric, while others cannot, which belongs to coating surface defects.

2024-02-23

Color steel knowledge

Basic knowledge training for color steel rooms: 1. Arrange according to the overall layout of the construction site; 2 Let's take a look together: Firstly, from the perspective of site selection, we need to Ensure the stability of the skeleton; 4 Places with strong air vents that affect safety Secondly, the selection of raw materials for building color steel houses is crucial Satisfactory corrosion resistance of roof panels; 7 The purlins used to establish the color steel room should be made of sturdy and durable C-shaped steel machines Color steel insulation composite panels can be selected for wall panels; The essential knowledge of color steel rooms at present.

2024-02-23

Formation and Prevention of Stress Corrosion Cracks in Steel Structures (1)

With the advancement of technology and the deepening of people's understanding of steel structures, steel structures, as a new form of building structure, are increasingly being adopted. Due to the different technical levels and processing techniques of production or installation manufacturers, there are also significant differences in the quality of steel structures. Xuzhou Sifang will introduce the formation and prevention measures of stress corrosion cracks in steel structures.

2024-02-23

Formation and Prevention of Stress Corrosion Cracks in Steel Structures (II)

The formation of stress corrosion must have a comprehensive effect of three factors simultaneously, namely material, medium, and tensile stress. Therefore, corresponding measures should be taken from three aspects of influencing factors, including product structure design, installation and construction, and production management.

2024-02-23

What is the difference between color steel plate and corrugated board? (1)

Color coated steel plate: refers to color coated steel plate, which is a type of steel plate with organic coating. Color steel plates are divided into single plate, color steel composite plate, floor support plate, etc. Widely used on the walls and roofs of large public buildings, public factories, prefabricated houses, and integrated houses.

2024-02-23

What is the difference between color steel plate and corrugated board? (II)

Pressed steel plates are usually classified in various ways based on their application location, plate shape wave height, overlapping structure, and material.

2024-02-23