45# refers to the carbon content of this material, about 450. This kind of material in seamless steel pipe, compared with other excellent carbon steel, is also common.
45# steel: the average carbon content is 0.42-0.50%, the average silicon content is 0.17-0.37%, the average manganese content is 0.50-0.80%, the average sulfur content is less than 0.035%, the average phosphorus content is less than 0.035%, the average chromium content is less than 0.25%, and the average nickel content is less than 0.2545%
Recommended heat treatment temperature tensile strength: no less than 600MPa yield strength: no less than 355MPa elongation: 10% shrinkage: 40% impact energy: 39j steel delivery state hardness: no more than no heat treatment: 229hbs annealed steel: 197hbs application example: used to manufacture gears, racks, sprockets, shafts, keys, pins, impellers of steam turbines, compressor pump parts. %, product model 45 × product specification φ: 756mm; wall thickness: below 100mm.
Steel Pipe InspectionCarbon steel is the most widely used material for piping systems and components in power plants, oil refineries and petrochemical plants, and many other types of industrial and manufacturing facilities. In fact carbon steel actually accounts for nearly 85% of all annual steel production worldwide. It’s used so widely because of its ready availability and relatively low cost. In certain applications however, corrosive chemicals and other environmental factors can lead to severe deterioration and degradation of carbon steel. The good news? Corrosion can be fought by keeping up with prudent monitoring, carbon steel pipe inspections, and repair practices.
How to deal with the weld of ERW pipeERW pipe is made by rolling low carbon structural steel or low alloy structural steel strip into tube blank according to certain helix angle, and then welding the tube seam. It can produce large diameter steel pipe with narrow steel strip. The specification is indicated by outer diameter * wall thickness, and the API 5L X52 Welded Steel ERW Pipe shall ensure that the hydrostatic test, tensile strength and cold bending performance of the weld meet the requirements.
The steel price oversold rebound in iron and steel enterprises expansion increased enthusiasmIn September, the steel price oversold rebound stimulation, again to expand production of iron and steel enterprises. The latest Xunbao Chinese Steel Industry Association show that in early October, CISA member enterprise daily crude steel output 1 million 584 thousand tons, year growth of 4.9%; the estimated output was 1 million 916 thousand tons, year growth of 4%. Analysts said the increase in crude steel output is mainly in the steel prices rebounded sharply in September, steel production and business conditions improved.
Steel rail beam plant to ensure that the export of steel rail on scheduleRecently, the rail beam plant to undertake the export of 28 thousand and 300 tons of rail orders. For the successful completion of the export rail rolling task, Rail Rail Plant in accordance with the export contract requirements, strengthen process management, improve the rolling trial production of new products, effective control of trial rolling accident time, development of new products to enhance the yield rate. At present, the rail beam plant rail contract is full, in the company of a few of the effective products, rail and part of the rail profile accounted for about 70%.
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