
Threeway Steel Co., Ltd
E-mail: sales@srtsteelpipe.com
Address: 22nd Floor, Royal Wing Tower, Long Champ International Building, No.9 Xiangfu Road, Changsha, Hunan, China, PC: 410116Phone:0086-731-8873-9521

Keywords :Quality requirements for seamless steel pipes Update : 2023-06-20 View(s) : 1116
The surface quality of steel pipe: requirements for smooth surface a. Dangerous defects: cracks, inward folds, outward folds, crushing, delamination, scarring, concaves, convex hulls, etc. b. General defects: pockmarks, green lines, scratches, bruises, slight inner and outer straights, roller ma...

Keywords :Stainless steel pipe welding precautions Update : 2023-06-16 View(s) : 913
1. The power supply with vertical external characteristics is adopted, and the positive polarity is used for DC (the welding wire is connected to the negative pole). 2. It is generally suitable for welding thin plates below 6mm. It has the characteristics of a beautiful weld shape and small wel...

Keywords :Non-destructive testing of steel pipe fittings and steel flanges Update : 2023-06-14 View(s) : 1041
1. Tees, crosses, press-formed reducers, and pipe caps formed by the direct cutting of bars of all material categories shall be non-destructively tested one by one; among them, carbon steel, alloy steel, and low-temperature steel shall be tested according to NB/T47013.4 or related specifications for...

Keywords :Stainless steel pipe processing application requirements Update : 2023-06-12 View(s) : 875
Precision stainless steel tubes are very characteristic in terms of model specifications and appearance performance. First of all, the thicker the tube wall of this type of stainless steel tube, the higher its cost performance and practicability, and the thinner the tube wall, the processing cos...

Keywords :Stainless steel elbow features Update : 2023-06-08 View(s) : 1
1. Stainless steel stamping elbows will not produce corrosion, pitting, rust, or wear. Stainless steel is also the strongest material among metal materials for construction. 2. Stainless steel pipe fittings have excellent corrosion resistance. The thin and strong oxide film on the surface of st...