-
What are the advantages of 304 stainless steel pipe fittings
① Advantages of material performance: Thin-walled stainless steel water pipes are made of stainless steel as the name implies. The strength of stainless steel is 3 times that of copper pipes and 8 to 10 times that of PPR pipes. It can withstand the impact of high-speed water flow of 30 meters per...Read more -
Spiral steel pipes can be divided into several categories according to their uses
There are roughly four categories of spiral steel pipes according to their uses: spiral steel pipes for drainage, spiral steel pipes for dredging, spiral steel pipes for piling, and spiral steel pipes for oil and gas. Spiral steel pipe for drainage Materials of spiral steel pipes for drainage: Q2...Read more -
What are the specifications of seamless steel pipes
Seamless steel pipe DN219*6 represents a seamless steel pipe with a nominal diameter of 219mm and a wall thickness of 6mm. DN stands for nominal diameter, nominal diameter, also known as average outer diameter. Refers to the standardized diameter series of containers, pipes, and accessories. The ...Read more -
Steel bending pipe calculation and blanking
Before performing steel bending pipework, you must first calculate the unfolded length of the bent section of the pipe and mark the starting point of the bending so that the correct semi-finished product can be obtained after bending. 1. Calculation of 90°bending pipe 90°bending pipe is the most ...Read more -
Daily maintenance is required for thick-walled steel pipes in use
Thick-walled steel pipes are widely used in steel products. It directly affects the economic benefits and the lives of personnel. Countries all over the world have attached great importance to the inspection of thick-walled steel pipes and adopted various non-destructive testing (NDT) methods to ...Read more -
Method of welding steel pipe forming
1.Single radius forming method. The single-radius roll forming method has three types: circumferential bending forming method, edge bending forming method, and center bending forming method. The single radius forming method is: the hole pattern is composed of a single radius, the horizontal rolle...Read more -
Slag inclusion cutting method for straight seam steel pipe
1. Regardless of whether the straight seam steel pipe is rotated or fixed The cutting nozzle should be kept perpendicular to the surface of the straight seam steel pipe. After the cutting is completed, the cutting nozzle is gradually tilted forward at an angle of 70°-80° with the tangent line of ...Read more -
Matters needing attention in use of thick-walled steel pipe
The wall thickness can be called a thick-walled steel pipe. There are some doubts about this. It depends on the ratio of the outer diameter of the steel pipe to the wall thickness of the steel pipe. For example, a steel pipe with a diameter of 50 mm, 10 mm can be regarded as a thick-walled steel ...Read more -
Production process of spiral steel pipe
(1) Raw materials are strip steel coils, welding wires, and fluxes. Strict physical and chemical tests are required before investment. (2) Butt joint of strip steel head and tail, adopt single wire or double wire submerged arc welding, after coiling into steel pipe, adopt automatic submerged arc ...Read more -
Hot rolling and cold rolling technology of seamless steel tube
Seamless steel pipes are made of steel ingots or solid tube billets through the perforation into capillary tubes and then made by hot rolling, cold rolling, or cold drawing. The specifications of seamless steel pipes are expressed in millimeters of outer diameter * wall thickness. Seamless steel ...Read more -
Characteristics of Steel Structure Buildings
1. The material has high strength and is lightweight The steel used in steel structures has high strength and high elastic modulus. Compared with concrete and wood, the ratio of its density to yield strength is relatively low. Therefore, under the same stress conditions, the steel structure has a...Read more -
The difference between hot-dip galvanized steel pipe and cold-dip galvanized steel pipe
Hot-dip galvanizing pipe reacts molten metal with an iron matrix to produce an alloy layer, thereby combining the matrix and the coating. Hot-dip galvanizing is to pickle the steel pipe first. To remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned in an aqueous s...Read more