What is equivalent material of normal strength RE flat bars

The company adopts modern management concept, adheres to “quality for survival, integrity for development”, and provides customers with high-quality and reliable normal strength RE flat bars steel products and wholehearted service. The company continuously deepens the internal reform of the enterprise, innovates in the reform, develops in the innovation, and gradually forms a set of management and operation mechanism which adapts to the market and has strong competitiveness.

At present, BBN steel has successfully developed Grade D40, E40 and other high-strength and high-toughness structural steel plates for offshore engineering, E550 and other quenched and tempered ultra-high-strength offshore platform steels, normal strength RE flat bars, API 2W Gr50 and other TPCP platform steels, and DH36-Z35 offshore oil platform steel, SM490, SM400 series of H-shaped steel for offshore oil platforms, etc., basically formed the serialization of high-strength steel for offshore platforms.

The wear-resistant layer of normal strength RE flat bars wear-resistant steel plate is mainly composed of chromium alloy, and other alloy components such as manganese, molybdenum, niobium and nickel are added. The carbide in the microstructure is distributed in the form of fiber, and the direction of the fiber is perpendicular to the surface. The microhardness of carbides can reach hv1700-2000 and HRC58-62 respectively. The alloy normal strength RE flat bars carbide has strong stability at high temperature, high hardness and good oxidation resistance. It can be used normally within 500 ℃.

Laser cutting normal strength RE flat bars has no burr, wrinkle and precision is high. It is superior to plasma cutting. Laser cutting has good cutting quality, narrow cutting width (generally 0.1-0.5m m), high accuracy (generally 0.1-0.4mm hole center distance error, 0.1-0.5mm contour dimension error), good surface roughness (generally Ra is 12.5-25μm), and the normal strength RE flat bars cutting seam can be welded without further processing. Fast cutting speed: for example, with 2kW laser power, the cutting speed of 8mm thick carbon steel is 1.6m/min.

A387 Gr 91 Cl 1 alloy steel is an option for use in sour service environments. The material has good weldability and with its heat resistant qualities, the material is a highly versatile steel which can be used in numerous applications.
A387 Gr 91 Cl 1 steel tensile requirements
Tensile strength, ksi [MPA]: 85 to 110 [585 to 760]
Yield strength, min, ksi [MPa]/(0.2% offset): 60 [415]
Elongation in 2 in. [50mm], min, %: 18

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