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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.
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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.
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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.
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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.
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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.
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Hot dip galvanized steel pipe low pressure fluid pipeline Q235 A106 A53
Galvanized welded pipe is divided into hot galvanizing and cold galvanizing. The thickness of hot dip galvanizing layer, low cost of galvanizing, the surface is not very smooth. Oxygen blowing welded pipe: it is used for steelmaking and oxygen blowing. Generally, it is small diameter welded steel pipe with 8 specifications of 3 / 8-2 inch. It is made of 08, 10, 15, 20 or 195-q235 steel strip. In order to prevent corrosion, it has to be aluminized.
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Precision steel tube bright pipe high precision seamless steel pipe finishing rolling oil pipe
Precision steel pipe is a kind of high precision steel pipe material after cold drawing or hot rolling. Due to the advantages of no oxide layer on the inner and outer walls of precision steel pipe, no leakage under high pressure, high precision, high finish, no deformation during cold bending, no expansion, flattening and no crack, it is mainly used to produce pneumatic or hydraulic components, such as air cylinder or oil cylinder, which can be seamless pipe or welded pipe.
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1045 S45C C45 45# Seamless steel tubes for structural purposes machining
No.45 steel is high quality carbon structural steel with low hardness and easy cutting. It is often used as template, pin and guide post in mould, but it needs heat treatment. Recommended heat treatment temperature: normalizing 850, quenching 840, tempering 600. The content of carbon (c) in its chemical composition is 0.42-0.50%, Si content is 0.17-0.37%, Mn content is 0.50-0.80%, Cr content is less than 0.25%.
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1020 S20C 1C22 C22 Q235 20# A3Seamless steel tubes fluid seamless steel pipe
The carbon content of 20 steel is 0.2%, which belongs to high quality low carbon steel, cold extrusion, carburizing and hardening steel. The steel has low strength, good toughness, plasticity and weldability. The tensile strength is 253-500mpa and the elongation is ≥ 24%. The supply state is unheated, hardness ≤ 156hbs.
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1020 S20C 1C22 C22 Q235 20# A3Seamless steel tubes for structural purposes
The carbon content of 20 steel is 0.2%, which belongs to high quality low carbon steel, cold extrusion, carburizing and hardening steel. The steel has low strength, good toughness, plasticity and weldability. The tensile strength is 253-500mpa and the elongation is ≥ 24%. The supply state is unheated, hardness ≤ 156hbs.
Shandong Huayi Metal Materials Co., Ltd.
- Email daisy_sdhygg@163.com
- Phone 86-15863538780
