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DIN 17175 is suitable for seamless pipes and is used in the construction of boilers, pipelines, pressure vessels and equipment. The maximum temperature can reach 600 ℃. At the same time, under high pressure, the total stress and related fouling conditions can increase or decrease the temperature limit.
Spiral Submerged Arc Welded Pipe SSAW
The spiral submerged arc welded pipe is made of hot-rolled steel strip as raw material, and is usually made by constant temperature spiral forming and automatic submerged arc welding. The manufacturing process is to roll the steel strip, make the rolling direction at a certain angle to the center direction of the tube, and then form and weld, so the weld is spiral. Can provide API SPEC 5L steel pipe, GB / T3091,GB / T9711-2011,EN10219,ASTM A252 standard steel pipe.
Resistance welded pipe ERW is formed by hot rolled coil through forming machine. The skin effect and proximity effect of the high frequency current are used to heat and melt the edges of the tube blank. Pressure welding is carried out under the action of squeeze rollers. Realize production. The production process of welded steel pipes is simple, the production efficiency is high, the varieties and specifications are many, and the equipment is few, but the general strength is lower than that of seamless steel pipes.
Grade 316 stainless steel is an austenitic form of stainless steel with a molybdenum content of 2-3%. The addition of molybdenum makes the metal more resistant to pitting and corrosion and improves its resistance to exposure to high temperatures. This grade of stainless steel is particularly effective when used in acidic environments. With this metal, corrosion caused by acetic acid, hydrochloric acid and other forms of acid can be prevented.
ASTM A656 steel coil is a high-strength low-alloy steel used in structural applications. In structural applications, light weight and good formability are essential. ASME A656 steel plates are manufactured in different grades of 50, 60, 70 and 80 steel coils with specified yield points.
A709/S355J0W Carbon Steel Coil
ASTM A709 steel coil is in accordance with the standard specification for bridge structural steel, ASTM A709 steel coil is a carbon, high strength low alloy and quenched and tempered alloy steel mainly used in bridge construction. BBN offers the following 5 grades of steel coils: A709,36, 50, 50W, HPS 50W. The atmospheric corrosion resistance index of 50W, HPS 50W and HPS 70W are 6.0.
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