Welcome to Henan BBN Steel

  • zhengzhou
    henan ,China
  • Opening Time
    Mon - Sat: 08.00 to 18.00
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Based on the main business of iron and steel, we are committed to producing high-quality, green and efficient steel products. The main steel products are medium and S460ML equivalent material heavy plate, hot rolled coil, section steel, steel tube, etc., which are widely used in automobile, oil, railway, bridge, construction, electricity, transportation, machinery, shipbuilding and other important fields. Our steel products are exported S460ML equivalent material to Indonesia, Bangladesh, Myanmar, Iran, Brazil, Mexico, UAE, Iraq, etc Egypt, Mozambique, Ukraine and other dozens of countries and regions.

All steel pipes operated by our company are in compliance with national standards, and the original bill of materials of steel mills is attached. At the same time, we supply the S460ML equivalent material seamless steel pipe, electrical Resistance Weld pipes, large diameter welded pipes ordering business of various specifications and materials and the railway and road transportation business for the majority of users.

Penetration testing technology is only suitable for detecting surface defects. It uses penetrant to apply on the surface of the S460ML equivalent material steel plate, then wipes the excess penetrant with the cleaning solution, and then smears the developer. The penetrant remaining in the defect is adsorbed by the developing material, so as to observe the shape of the defect and determine the type of defect. This S460ML equivalent material method requires multiple wipes before and after the inspection, the process is more cumbersome, and can not detect internal defects and rough and dirty steel plates.

S460ML equivalent material, A572 Grade 50 steel with the thickness range is 1.2-600mm, the width range is 1220-4200mm, and the length range is 5000-18000mm. Also note that the A572 Grade 50 steel coil thickness should not exceed 25 mm. For A572 Grade 50 steel, the C element content is 0.23%, the Si element content is 0.4% max, the Mn element content is 1.35% max, the P element content is 0.004% max, the S element content is 0.05% max, the V element content is 0.06%, the Ni element content is 0.015%, the Co element content is 0.05%.

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