BBN steel company was founded in 2000, starting the international business in 2010 and successfully being approved and certified by ISO9001:2008. After ten years development, BBN steel has become the large-scale comprehensive enterprise group, combining steel trading, a573 grade 65 [450] for bolted and welded structures plate processing, and steel distribution, also have large warehouse and processional representatives both inTianJin, Zhengzhou and Beijing city.
The specifications available for a573 grade 65 [450] for bolted and welded structures, pressure vessel plates are: thickness 8-700mm, width 1500-4200mm, length 4000-17000mm, and unit weight up to 30.00 tons. Our company can provide cutting, welding, drilling and turning services if required. Available flaw detection requirements: Z15-Z35 thickness direction performance requirements, high strength and toughness requirements, pressure vessel plate and other steel plates.
The difference between Q195 steel and 20# steel: a573 grade 65 [450] for bolted and welded structures, Q195 steel is ordinary carbon structural steel, in which alloy elements are not specially added, and it is mainly used for construction and engineering structures. Q195 steel has low carbon and manganese content, low strength, good plasticity, high toughness, and good process performance and weldability. 20# steel is high-quality carbon structural steel. Alloy elements are not specially added to 20# steel, and it is mainly used in the manufacture of machine structures, and the amount of use is particularly large. 20# steel has higher strength than Q195 steel, good weldability, no temper brittleness, and its workability can be improved by water quenching.
Heat treatment is a very important process to improve the performance of a573 grade 65 [450] for bolted and welded structures etc. metal materials. The process of heating, heat preservation and cooling the steel in solid state to obtain the required structure and properties.
Our company supply various size and thickness a573 grade 65 [450] for bolted and welded structures, hot rolled plates. Plate thickness is available ranging 3mm to 350mm. Steel coils thickness are supplied in max. 25mm. Tolerances for carbon steel coils for conversion to: For minimum gauge orders, thickness and width tolerances are in accordance with the respective ASTM specifications of A568 for thicknesses of less than 0.230 inches(exclusive), and A635 for thicknesses of 0.230 inches to 1.00 inch, inclusive.
The high strength a573 grade 65 [450] for bolted and welded structures low alloy steel, which is shorten as HSLA steel, is one of our main products. We have professional team to serve you. For any demands or questions about HSLA steel, for example, ASTM A572 grade 50 chemical composition, difference between S355JR and S355J2, mechanical properties of a573 grade 65 [450] for bolted and welded structures ST52 steel, Q345B tensile strength, Q345D steel ASTM equivalent, HSLA steel price etc. , please do not hesitate to contact us and consult.
Our company will accept the product quality objection registration record, pass it to the a573 grade 65 [450] for bolted and welded structures production unit and relevant departments, and timely coordinate the supervision of product a573 grade 65 [450] for bolted and welded structures quality objection. Our company coordinates the relevant department personnel to the customer unit to carry on the investigation, the processing.
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