Our company was founded in 2000, which initially committed to providing high-quality steel A514 Gr J alloy steel plate products for China's rapid infrastructure construction. With the advantages of steel resources and good reputation in the domestic market, combined with the huge demand for steel in the international market, we began to export A514 Gr J alloy steel plate steel to the international market, opening up the international steel market.
Q690D steel belongs to high-strength welded structural steel. Among them, Q represents the yield strength, 690 represents the yield strength value, and D represents the grade of the steel plate. The quality grades of common Q690 series steel are A, B, C, D, E. The impact of grade D steel plate is -20°C. Q690D steel can be called a low temperature resistant high strength steel with a yield strength of 690Mpa.
High wear resistance: fully automatic CNC stacking equipment, independent of manual A514 Gr J alloy steel plate welding technology, produces fully qualified high-quality products. Special automatic welding technology enables the chromium content of wear-resistant layer to be controlled at more than 28%, and the A514 Gr J alloy steel plate hardness is between 58-62, which fully ensures that our wear-resistant layer has continuous good and balanced wear resistance. The wear test in metallurgy, cement and other industries shows that the wear resistance of the wear-resistant layer of the surfacing composite A514 Gr J alloy steel plate wear-resistant steel plate is more than 30 times that of the 16Mn plate with the same thickness.
The final heat treatment of quenched and tempered alloy steel, A514 Gr J alloy steel plate is quenching and high temperature tempering. The hardenability of quenched and tempered alloy steel is high, and oil is generally used. When the hardenability is very high, it can even be air cooled, which can reduce the defects of heat treatment. The final properties of quenched and tempered alloy steel depend on tempering temperature. Generally, it is tempered at 500 ℃ - 650 ℃. The required properties can be obtained by selecting tempering temperature. In order to prevent the second kind of temper brittleness, fast cooling (water cooling or oil cooling) after tempering is beneficial to the improvement of toughness.
StE 480.7 TM steel plate/pipes,under DIN 17172 standard, we can regard StE 480.7 TM steel plate/pipes as large diameter pipes. A514 Gr J alloy steel plate, StE 480.7 TM steel plate/pipes is one mainly of Steel for large diameter pipes,DIN 17172 StE 480.7 TM steel with the demands in mechanical properties of the pipes followed the DIN 17172 specification for grade StE 480.7 TM(YS is 485MPa, TS is from 600-750 MPa).It is well known that a low carbon bainitic microstructure offers an excellent combination of strength and toughness.
If you are in the search of best quality of A514 Gr J alloy steel plate structural steel plate then you have landed on the right place. These high quality structural steel plates are used for a long time as they have a long life due to their best and advance manufacturing techniques. These A514 Gr J alloy steel plate plates are best and ideal for temperature rise work, high pressure and tank fabrication work where accurate & excellent toughness is required for better results. Welcome to our factory. We supply our products to all the leading industries and customers who are satisfied with our production and quality.
Compared with other fast-moving consumer goods, steel consumption is obviously different, with a wide range of use and a long service life. Therefore, the quality and service of steel materials are particularly important. Service is always one of our top concerns, especially after-sales service. We have mature after-sales service team, and can help you solve problems professionally during application of the steel materials.
