Longteng Special Steel Group

Large forgings cover multiple fields, with typical products including: thermal power rotors, impellers; hydropower main shafts, thrust heads; pressure vessels such as various types of cylinder sections and tube sheets; marine propeller shafts, intermediate shafts, and curved rudder stocks; metallurgical rollers and support rollers; hoisting and mining roller shafts and support shafts; various die steels; marine engineering replacement forgings; and other fields such as ultra-high pressure core barrels and semi-circular beams.

Our plates include four series of multiple varieties and specifications, including engineering machinery steel, pipeline steel, ship and offshore steel, and pressure vessel steel, to meet customer needs. Middle thickness plate are mainly used in the shipbuilding industry, engineering machinery, offshore engineering, oil and gas pipe fittings, and construction industries. With the rapid development of the shipbuilding industry in recent years, the demand for ship steel plates is very high.

Mold Steel is for mold processing. Molds have many uses and the working conditions of molds vary uncertain, so the range of materials used to make molds is very wide. The most common used mold material is die steel. From general carbon structural steel, carbon tool steel, alloy structural steel, alloy tool steel, spring steel, high-speed tool steel, stainless heat-resistant steel to martensitic aging steel that meets the needs of special molds, as well as powder high-speed steel, powder high-alloy mold steel, etc.

New energy vehicle forging parts

Bearing steel balls are very important basic component. Where is rotation, Where are bearing balls. We have the annual production capacity of 30,000 tons of various types of bearing steel rolling element blanks. Our products are widely used in metallurgical mining machines, mechanical bearings, engineering machinery slewing bearings, motor bearings, wind power equipment yaw and pitch bearings, automobile parts and other fields.

The plate flange is the most common flange. Because the plate flange has good comprehensive performance, it is widely used in chemical industry, construction, water supply, drainage, petroleum, light and heavy industry, refrigeration, sanitation, plumbing, fire protection, electric power, shipbuilding and other basic projects.

Welding neck flange refers to a flange with a tapered neck and butt-welded to the cylinder or pipe. It is an integral flange. Due to the transition structure of the tapered neck and the butt welding connection, the strength and rigidity of the flange are enhanced, and the sealing is better than plate flange.

Slip-on flange is the full name of necked flat welding steel pipe flange. It is a flange that connects steel pipes, pipe fittings, etc. to equipment or pipelines through fillet welds. Slip-on flange is also a plate flange with a neck. The short neck improves the strength of the flange and improves the bearing capacity of the flange. Therefore, it can be used on pipelines with higher pressure.

A socket welding flange is a flange that is welded on the pipe end and the outside by inserting the pipe end into the flange ring step. The socket welding flange has good rigidity, small welding deformation and good sealing. It is commonly used in boiler pressure vessels, petroleum, chemical industry, shipbuilding, pharmaceuticals, metallurgy, machinery, stamping elbows, food and other industries.

Our welding materials products consist of three major series: solid welding wires, flux-cored welding wires, and welding electrodes, with over 200 varieties in total. In addition to their conventional applications, our products are also evolving towards specialized welding materials for high-strength steel, heat-resistant steel, stainless steel, and non-ferrous metals. These welding materials are widely used in various industries, including steel structure construction, shipbuilding, pressure vessels, oil pipelines, rail transit, marine engineering, and nuclear power.

Bulb Flat Steel is mainly used in shipbuilding, marine engineering, steel structure engineering, and bridge engineering. In recent years, with the rapid development of the shipbuilding industry, the demand for ball-flat steel is very strong. Most ships choose ball-flat steel for structural design.

Inverted angles are also known as "L-shaped section steel" " unequal-leg and unequal-thickness angle steel". It is a new type of profiled bar produced to meet the needs of large-scale shipbuilding. Apart from being used in the construction of large ships, inverted angles can also be applied in ocean engineering structures and construction engineering structures with high requirements. Marine equal-leg and unequal-leg angle steel is mainly used for the fabrication of frame structures.

Marine angle steel (marine unequal angle steel, marine equal angle steel) is a new type of profile produced to meet the needs of large ship-building. In addition to being used for large ships, it can also be used for marine engineering structures and high-demand building engineering structures. Marine equal and unequal angle steels are mainly used to make frame structures.

Electric angle steel is mainly used to fabricate frame structures, such as towers for high-voltage transmission, frames on both sides of the main beams of steel-structured bridges, columns and booms of tower cranes on construction sites, columns and beams in workshops, etc.

Hot-rolled track shoes is suitable for the manufacturing of engineering machinery and excavators, and is customized according to user standards. The main customers are Caterpillar, Sany Heavy Industry, Shantui, Dachang, Volvo, etc.

Forging steel ingot: carbon structural steel, pressure vessel steel, petrochemical steel, wind power steel, die steel, port machinery steel;

The premium round bar products mainly include series of high carbon, high and low alloy, alloy, and high carbon grinding ball, etc.

Cold heading steel series, medium and high carbon steel series, welding steel series, spring steel series, tool steel series, bearing steel series, PC steel, free-cutting steel series.

Abrasive balls for steel grinding machines (simply known as grinding steel balls) are a type of crushing media used in ball mills for pulverizing materials. Through extensive research and consideration of the actual working conditions of ball mills, our company has developed specialized grinding balls for grinding machines with higher volume hardness and better wear resistance by improving the steel ball material and supporting heat treatment processes. These products not only guarantee grinding efficiency but also effectively enhance the grinding effect, contributing to energy conservation and consumption reduction in mining operations. Our annual production capacity is 800,000 tons, and our grinding balls are primarily used in metallurgical mines. Our products are exported to countries and regions in Southeast Asia, Australia, Africa, North America, Central and South America, and beyond.

Steel Bars for Prestressed Concrete (PC Steel Bars) is a high-tech prestressed steel material developed by Japan's Nippon Kokusai Kogyo in the 1960s. It boasts features such as high strength and toughness, low relaxation, strong grip with concrete, excellent weldability, and good forgeability, which helps save materials. Both domestically and internationally, PC Steel Bars have been widely used in prestressed concrete components like high-strength centrifugal piles, power poles, and viaduct piers. They enjoy a particularly broad market in the international arena, especially in Southeast Asia.

The steel members at each end of a pre-tensioned prestressed concrete pile used for prestressing tension anchorage in production and connection during construction are called end plates.