Import Dnv Aq47/Dnv Aq51/Dnv Aq56/Abs Aq63/Dnv Aq70 — Buy in Bulk from Supplier in China

DNV AQ47, DNV AQ51, DNV AQ56, ABS AQ63, and DNV AQ70 are high-strength shipbuilding steel plates designed for structural applications in offshore platforms and marine vessels. These grades are supplied in thicknesses ranging from 8mm to 200mm, widths between 1500mm and 4000mm, and lengths up to 18000mm, conforming to international classification standards including DNV, ABS, BV, GL, LR, NK, and KR. The material is delivered in normalized, quenched, or normalized plus quenched conditions to ensure consistent mechanical properties.

These plates are produced from controlled carbon-manganese steels with low sulfur and phosphorus content to enhance weldability and toughness. Typical impact test requirements at -40°C are met for AQ47 through AQ70 grades, with AQ70 offering the highest yield strength of 690 MPa minimum. The material is often subjected to ultrasonic testing to detect internal laminations and HIC testing for sour service resistance, particularly in oil and gas applications. Surface preparation may include primer blasting to improve coating adhesion.

These steel plates are primarily purchased by shipyards, offshore fabricators, and engineering firms constructing drilling rigs, floating production units, and large commercial vessels. Buyers typically require mill test certificates for chemical composition and mechanical properties. Packaging is usually in bundles with protective steel straps and moisture barriers. Delivery terms are typically FOB Chinese ports such as Qingdao or Tianjin, with lead times averaging 30 to 45 days after order confirmation.

Henan Hzz Iron And Steel Co., Ltd is based in Zhengzhou, Henan Province, China, and operates as an imported supplier with harbor-tier verification. The company sources and distributes high-strength shipbuilding steel plates to international buyers, primarily focusing on DNV and ABS certified grades. The listing confirms no direct manufacturing capability, and no information is provided regarding production capacity, workforce size, or years in operation.

The supplier's profile indicates no verified response rate or average response time, suggesting limited direct buyer interaction. The address provided is a commercial office location, not a mill or processing facility. Buyers should treat this entity as a trading company that facilitates export logistics and documentation for mill-produced material. No certifications, client lists, or quality control processes are disclosed in the source data.