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Every customer who has visit us and witness the steel materials before delievry will be impressed by our quality control departemnt. Even not come to inspect the steel materials before delievry, our quality control departemnt will also send inspection report to the customer. For each order, no matter its quantity and value, our quality control departemnt will make strict inspection before delivery, the inspection contents include apperance, tolerance, dimension, mark, special requirements of customers, etc. To guarantee our steel materials sent to the customer is qualified.
Alloy spring steel is a kind of steel which can improve the mechanical properties, hardenability and other properties of the steel by adding some alloy on the basis of carbon steel to meet the requirements of manufacturing various springs. Its advantages are that it integrates other materials, making spring more stable, durable, long life. SMA490AP atmospheric corrosion resisting steel, Alloy spring steel has high elastic limit, high yield ratio, high fatigue strength and enough toughness.
With the experienced staff in the steel industry, BBN steel specializes in steel deep processing service. We provide access to best-in-class processing for steel plates, steel pipe and tubes, including laser cutting, saw cutting, bending, welding, drilling, grinding and more, to give our customers the products they need in exactly the way they need them
The Indian customer purchased our A516 Gr 70 pressure vessel steel plates to make tanks. They have very strict requirement for raw materials quality. For the A516 Gr 70 pressure vessel steel plates, they asked for Normalizing, 0℃ impact, A578 UT test, PWHT and so on tests, our Q/C department witness the production process with the technician from the customer company together. Meanwhile, we arrange BV inspection to check the quantity, spray mark, stamp on the A516 Gr 70 pressure vessel steel plates, and so on.