What are the top ten EN steel grade S355JR plates suppliers in Nigeria

The company specializes in the research and development, production and sales of EN steel grade S355JR 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 EN steel grade S355JR plates five production lines in three major production workshops: large-diameter longitudinally welded pipe production workshop,EN steel grade S355JR plates rolled steel pipe production workshop, and thermally expanded steel pipe production workshop, with an annual production capacity of more than 100,000 tons.

Gas cylinder EN steel grade S355JR plates steel plate is used in welded gas cylinder and related products. BBN supplies gas cylinder steel with better anti-stress capability. Popular Steel standard and grades for cylinders steel mainly: EN10120 P245NB, P310NB, JIS G3116 SG255, EN steel grade S355JR plates SG325, DIN17155 HI HII, 17Mn4, GB HP235, HP295, HP345.

The boiler steel plate has small strain aging sensitivity, especially in the corresponding working temperature range, a certain value of aging impact energy must be guaranteed;The boiler steel plate has low notch sensitivity, which can prevent steel from cracking in welding, opening, and local stress concentration areas;The EN steel grade S355JR plates, boiler steel plate has good welding performance;The EN steel grade S355JR plates, boiler steel plate has a good microstructure, white spots and cracks are not allowed.

The sulfur element (S element) comes from the ore and fuel coke of steelmaking. It is a harmful element in EN steel grade S355JR plates etc. steel. Sulfur exists in steel in the form of iron sulfide (FeS). FeS and Fe form a low melting point (985℃) compound. The hot working temperature of steel is generally above 1150 - 1200℃, so when the steel is hot working, the premature melting of FeS compound causes the workpiece to crack, which is called "hot brittleness". It reduces ductility and toughness of steel and causes cracks during forging and rolling. Sulfur is also detrimental to welding performance and reduces corrosion resistance.

Chemical composition of 65Mn steel: C 0.62-0.70, Si 0.17-0.37, Mn 0.90-1.20, Cr ≤ 0.25, Ni ≤ 0.30, Cu ≤ 0.25. 65Mn steel mechanical properties: tensile strength: ≥735 Mpa, yield strength: ≥430 Mpa, elongation after fracture: ≥9%, reduction of area: 30%, impact absorbed energy: no impact. EN steel grade S355JR plates, 65Mn steel has high strength, high hardenability, less decarburization tendency, overheat sensitivity, easy to produce quenching cracks and temper brittleness. 65Mn steel is used for making various flat and round springs, leaf springs, spring rings, valve springs, steel wire cold coil springs, clutch springs of light trucks and cars.

We are known as EN steel grade S355JR plates leading manufacturers, suppliers and exporters in the market all over the world. We engage in providing a wide range of plates which are accurately mass produced by using the best quality of parts which gives maximum durability and dependability. The most important thing to know as a potential customer of IRON&STEEL is that we EN steel grade S355JR plates stock, processing service, and distribute all of the popular grades of carbon steel plate, alloy steel, shipbuilding steel and boiler steel. Welcome to come China and visit our factory.

Provide special product requirements to meet the personalized needs of customers. The EN steel grade S355JR plates company arranges production and shipment strictly according to the contract, and guarantees to supply goods according to the time agreed in the contract. Provide professional consultation: we guarantee to answer any professional and EN steel grade S355JR plates technical questions raised by users within 1 hour; provide detailed information.