Q345NQR2 chemistry for general intermediate strength applications

With the development of China's Q345NQR2 chemistry market economy, the company vigorously implements the strategy of industrialization, internationalization and diversification, promotes group operation, intensive development and lean management, and builds the company into a company with scientific development concept, continuous innovation vitality, excellent corporate culture and strong sense of social responsibility through rich series of Q345NQR2 chemistry products and project portfolio and complete operation network And international first-class competitiveness of modern enterprises.

Boiler vessel plate: it is used to manufacture various boilers and important accessories. Because the boiler steel plate is in the medium temperature (below 350 ° C) and high pressure state, in addition to bearing high pressure, it is also subject to impact, fatigue load and water and air corrosion. Q345NQR2 chemistry. It is required to ensure a certain strength and good welding and cold bending performance. It is a special steel plate for pressure vessel, which is widely used in China.

Wear resistant plate is composed of two parts, namely carbon steel plate and alloy wear-resistant layer. Under normal conditions, the thickness of the Q345NQR2 chemistry alloy wear-resistant layer of the wear-resistant plate is 1 / 3-1 / 2 of the total thickness. When working, the matrix provides the strength, toughness, plasticity and other comprehensive properties to resist external forces, and the alloy wear-resistant layer provides the Q345NQR2 chemistry wear-resistant property to meet the requirements of specific working conditions.

Hydrogen (H) is the most harmful element in general steel such as Q345NQR2 chemistry Hydrogen dissolved in steel will cause hydrogen embrittlement, white spots and other defects Hydrogen, like oxygen and nitrogen, has very little solubility in solid steel It dissolves into liquid steel at high temperature, and accumulates in the structure without time to escape when cooling, forming high-pressure micro pores, which greatly reduce the plasticity, toughness and fatigue strength of steel, and even cause cracks and brittle fracture in severe cases "Hydrogen embrittlement" mainly occurs in martensitic steel, but not very prominent in ferrite steel, and generally increases with hardness and carbon content

Our produced Grade A normal strength shipbuilding steel are certified by CCS, BV, LR, ABS, DNV, GL, KR and NK ABA/ ABS Grade A marine steel plates are suitable for use in the construction of container ships and large cargo freighters and commercial shipping lines such as luxury cruise ships and ferries,Q345NQR2 chemistry., ABS Grade A Steel Plates Size and Specification Thickness: 3~150mmWidth: 1219~3200mmLength: 2500~12000mm

The company has a high-quality management, technology and R&D team, and adopts independent research and development, domestic innovative process optimization combination. Relying on advanced manufacturing technology and sophisticated production testing equipment, it has ensured the high quality of products Q345NQR2 chemistry and won a good reputation. We can offer various kinds of steel materials in GB, ASME, ASTM, JIS, DIN, EN, API standards and specifications.

We have a professional after-sales department to collect all information related to customers, so as to make relevant treatment in time according to the information, and file it; guide the user's product use methods and precautions; coordinate with the sales department, visit customers regularly, understand the customer's use and new requirements, and make a customer visit record; When communicating with customers, they should be enthusiastic and careful to understand the situation of product problems and put forward solutions