China Sindara Steel Co.,Ltd company news

Stainless steel pipes stand as a prime choice for industries that demand superior corrosion resistance properties. These pipes are known for their ability to withstand harsh environments and aggressive substances, making them a reliable solution for various applications. Let us now shed light on the ... Read More

The spiral tube is divided into three layers from the inside to the outside. The working steel pipe layer is generally made of seamless pipe ( gb8163-87 ) spiral welded pipe ( gb9711-88 ) according to the design and customer requirements. SY / t5038-92 ) and straight seam welded pipe ( gb3092-93 ). ... Read More

Galvanized Steel Structure Basketball Court Cover Shed Building in Sydney, Australia 1. Parameter table about Galvanized Steel Structure Basketball Court Cover Shed Building in Sydney, Australia Steel Beam & Column Material : Q355B Roof Covering: metal sheet 2. Details of Galvanized Steel Structure ... Read More

First, the outside of the steel is coated with a solvent to remove external impurities, and then a wire brush is used to remove rust, loose or inclined rust, welding slag, etc., and rust can also be removed by pickling. Electroplating is divided into thermal plating and cold plating. Hot plating is ... Read More

Do you know how spiral steel pipes are cutted off? Are there any issues that need attention? Here is a brief introduction. After a series of processes such as forming, welding, and cooling, spiral steel pipes still need to be sawed. In this link, the length of the technical spare ruler directly ... Read More

Steel grade is H40、J55、K55、N80、M65、L80、C90、T95、P110 for oil casing pipe. API 5CT standards stipulate that the inner and outer surfaces of import and export oil casings shall not have folds, separations, cracks, or scars. These defects should be thoroughly removed, and the removal depth should not be ... Read More

First, the processing and loading of steel pipes: 1. During the heat treatment process, workpieces that are easy to deform should be heated on a special fixture 2. The workpiece should be placed in the effective heating zone Second, preheating: 1. For work pieces with complex shapes or sharp changes ... Read More

Defects that are prone to occur in the submerged arc welding area include pores, thermal cracks, and undercuts. 1. Bubbles. Bubbles often occur in the center of the weld. The main reason is that hydrogen is still hidden in the welded metal in the form of bubbles. Therefore, the measures to eliminate ... Read More

Detailed explanation of large-diameter straight seam steel pipe welding process: Double-wire automatic welding of straight seam steel pipe is a welding technology developed in recent years. In addition to the characteristics of semi-automatic single-wire welding, it also has welding characteristics ... Read More

1. The uses of large-diameter straight-seam welded steel pipes can be divided into oil well pipes (casing pipe, oil pipes, drill pipes, etc.), pipeline pipes, boiler pipes, mechanical structure pipes, hydraulic support pipes, gas cylinder pipes, geological pipes, chemical pipes (high-pressure ... Read More