The company specializes in the research and development, production and sales of NV E40 hull structural steel plates seamless pipes, longitudinally welded pipes, large-diameter welded pipes, API 5L welded pipes, spiral welded pipes, and large-diameter thick-walled straight seam steel pipes. The company has NV E40 hull structural steel plates five production lines in three major production workshops: large-diameter longitudinally welded pipe production workshop,NV E40 hull structural steel plates rolled steel pipe production workshop, and thermally expanded steel pipe production workshop, with an annual production capacity of more than 100,000 tons.
ASTM A572 Grade 50, used in large-scale construction, NV E40 hull structural steel plates is an extremely strong alloy with a yield strength of 65,000 psi, an allowable bending stress of 39,000 psi and a future as the high-performance replacement of ASTM A36 steel.
NV E40 hull structural steel plates, High-strength wear-resistant plates have outstanding performance advantages. First of all, the high-strength wear-resistant plates get their name because their wear resistance is very good, and the degree of wear will not be prominent. Secondly, the corrosion resistance of the high-strength wear-resistant plate is very good. General chemical plants have many corrosive liquids, and the high-strength wear-resistant plates can be used as the floor to reduce risk of accidents.
The strengthening mechanisms in metals mainly include solid solution strengthening, dislocation strengthening, fine grain strengthening, and second phase (precipitation and dispersion) strengthening. Alloying elements have the most significant strengthening effect on steel in the quenched and tempered state, because it makes full use of all four strengthening mechanisms. Martensite is formed during quenching, and carbides are precipitated during tempering, resulting in a strong second phase strengthening and greatly improving toughness. Therefore, obtaining martensite and tempering it is the most economical and effective comprehensive strengthening method for NV E40 hull structural steel plates.
Chemical composition(%) of A213 T36 steel pipe(Carbon: 0.10–0.17, Manganese: 0.80–1.20, Phosphorus: 0.03, Sufur: 0.025, Silicon: 0.25–0.50, Nickel: 1.00–1.30, Chromium: 0.3, Molybdenum: 0.25–0.50, Vanadium: 0.02, Niobium: 0.015–0.045, Nitrogen: 0.02, Aluminum: 0.05, Cu 0.50–0.80). Mechanical properties for NV E40 hull structural steel plates, A213 T36 steel pipe: Tensile strength(min): 415Mpa; Yield strength(min): 205Mpa; Elongation: 30%; Hardness, HB: 163max.
Analyze the advantages and disadvantages of the products against the competitive NV E40 hull structural steel plates products. Understand the industry situation and future trend. Understand the product brand positioning appeal point, focus on the crowd and development direction. Understand the layout of each market area, and form a big strategic layout view. Understand the basic operation and assessment standards of work responsibilities. Understand the situation of the cooperative customers.
Over the years, the company has strived for perfection, being well-received. By virtue of stable product performance, high-quality engineering effects and perfect service system, we have won the trust of many customers, and our engineering cases and after-sales service systems are spread all over the world. We regularly conduct quality tracking and return visits by phone and email, listen to customers' opinions, and continuously improve service quality.
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