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  • Seamless square pipe welded square pipe carbon steel square pipe mechanical pipe

    Seamless square pipe welded square pipe carbon steel square pipe mechanical pipe

    Square pipe is a name for square pipe and rectangular pipe, that is, steel pipe with equal and unequal side lengths. It is made of rolled strip steel after process treatment. Generally, the strip steel is unpacked, leveled, crimped and welded to form a round pipe, then rolled into a square pipe, and then cut into the required length. Also known as square and rectangular cold-formed hollow section steel, referred to as square tube and rectangular tube, code names are F and J respectively.

  • Thin-wall steel tube Geological drilling/Petroleum cracking steel pipe for boiler for fertilizer equipment

    Thin-wall steel tube Geological drilling/Petroleum cracking steel pipe for boiler for fertilizer equipment

    Thin walled seamless steel tube is made of steel ingot or solid tube blank by piercing, and then by hot rolling, cold rolling or cold drawing. Thin walled seamless steel pipe plays an important role in China’s steel pipe industry< φ 76%, accounting for 35%< φ 159-650, accounting for 25%.

  • Q345 ASTMGr.50 ISOE355CC JISSN400 low alloy high strength structural seamless steel pipe

    Q345 ASTMGr.50 ISOE355CC JISSN400 low alloy high strength structural seamless steel pipe

    Q345 seamless pipe belongs to low alloy series – low alloy high strength structural steel (GB / t1591-1994). Q345A, B, C, D and E are the representative grades of this kind of steel. Compared with carbon structural steel, Q345A has the advantages of high strength, good comprehensive performance, long service life, wide application range and relatively economic. It is widely used in bridges, ships, boilers, vehicles and important building structures.

  • 42crmo4 4140/4142 alloy seamless steel pipe wear-resisting steel tube

    42crmo4 4140/4142 alloy seamless steel pipe wear-resisting steel tube

    42CrMo steel belongs to alloy structural steel in terms of material classification. It has good mechanical properties and machinability, and is widely used. There are mainly two types of materials, plate and round bar. Its comprehensive performance is better than 40Cr, which has been recognized by the industry.

  • Wear resistant steel plate / impact resistant plate / high temperature resistant plate for construction machine

    Wear resistant steel plate / impact resistant plate / high temperature resistant plate for construction machine

    Wear resistant steel plate is a kind of special plate used in large area wear condition. The commonly used wear-resistant steel plate is made of a certain thickness of alloy wear-resistant layer with high hardness and excellent wear resistance on the surface of low carbon steel or low alloy steel with good toughness and plasticity by surfacing. In addition, there are cast wear-resistant steel plate and alloy quenched wear-resistant steel plate.

  • 40Cr shaft parts Seamless steel pipe for mechanical manufacturing  Die steel

    40Cr shaft parts Seamless steel pipe for mechanical manufacturing Die steel

    40Cr steel is one of the most widely used steels in machinery manufacturing industry. After quenching and tempering, it has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity. The hardenability of the steel is good, and it can be quenched to the maximum when water quenched Ф 28 ~ 60mm, oil quenched to Ф 15~40mm。 When the hardness is 174 ~ 229hb, the relative machinability is 60%. The steel is suitable for making medium plastic mould.

  • Carbon steel seamless steel pipe / fluid pipe / high, low and medium pressure boiler pipe / petroleum cracking pipe / fertilizer pipe

    Carbon steel seamless steel pipe / fluid pipe / high, low and medium pressure boiler pipe / petroleum cracking pipe / fertilizer pipe

    Carbon steel seamless pipe is a kind of long steel pipe. Steel pipe has hollow section, which is widely used to transport fluid, such as oil, natural gas, water and some solid materials. For the fluid transportation with pressure requirements, in addition to ensuring the strength and rigidity that meet the corresponding requirements, it is also required to ensure the tightness, that is, the hydraulic test shall be carried out one by one before leaving the factory.

  • Special shaped steel cold drawn hexagonal steel bar A3 1045 q23545#

    Special shaped steel cold drawn hexagonal steel bar A3 1045 q23545#

    Square steel is a kind of material with various shapes, sizes and properties made of ingot, billet or steel by pressure processing. It can be divided into hot rolling and cold rolling; The side length of hot rolled square steel is 5-250mm, and that of cold drawn square steel is 3-100mm.

  • Low alloy high strength /Seamless steel tubes for structural purposes

    Low alloy high strength /Seamless steel tubes for structural purposes

    Compared with solid steel such as round steel, seamless steel pipe for structure has the same bending and torsion strength and lighter weight. It is a kind of economical section steel, which is widely used in the manufacture of structural parts and mechanical parts such as oil drill pipe, automobile transmission shaft, bicycle frame, construction steel scaffold, etc. It only requires strength and rigidity, but not tightness of steel pipe.

  • Straight welded pipe and spiral welded pipeQ235 A106 A53

    Straight welded pipe and spiral welded pipeQ235 A106 A53

    Welding steel pipe is also called welded pipe, which is made of steel plate or strip steel after crimping and forming, and generally fixed length is 6m. The welding steel pipe has the advantages of simple production process, high production efficiency, many varieties and specifications, less equipment investment, but the general strength is lower than seamless steel pipe.

  • ASTM 1020 1025 1035 1045 1050 C45 S45C S20C Carbon Steel Round Bar steel rod Price/Provide sawing machine cutting

    ASTM 1020 1025 1035 1045 1050 C45 S45C S20C Carbon Steel Round Bar steel rod Price/Provide sawing machine cutting

    Round steel is a kind of solid strip steel with circular section. Round steel is divided into hot rolling, forging and cold drawing. The specification of hot rolled round steel is 5.5-250mm. Among them: 5.5-25 mm small round steel is mostly supplied in bundles of straight bars, which are commonly used as reinforcement, bolts and various mechanical parts; Round steel larger than 25 mm is mainly used for manufacturing mechanical parts, seamless steel tube billets, etc.

  • Large diameter spiral steel pipe q235q345 drainage and sand pumping pipe straight seam spiral welded pipe thick wall spiral pipe

    Large diameter spiral steel pipe q235q345 drainage and sand pumping pipe straight seam spiral welded pipe thick wall spiral pipe

    Spiral welded pipe can be used to produce large diameter steel pipe with narrow strip. Its strength is generally higher than that of straight welded pipe. Compared with straight welded pipe with the same length, the weld length increases by 30 ~ 100%, and the production speed is lower. Therefore, straight seam welding is mostly used for small diameter welded pipe, while spiral welding is mostly used for large diameter welded pipe.