Hydraulic hose trader in india
Evolution is technology’s prerogative. It heralds change. Change that is the foundation of every aspect of life. 4 years ago, this was the vision that powered the birth of what is now the insignia of excellence in Sealing Systems in India.
Rajdhani Udaipur Pvt. Ltd. has metamorphosed from its humble beginnings as a hydraulic hoses and gasket manufacturer to industrial enterprise offering Gaskets, Rubber Hoses & Moulded Components and Compressed Fiber Jointing Sheets for a host of Automotive and Industrial applications.
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An ISO/TS: 16949 organization, Rajdhani Udaipur is marked by its resolute drive to excel. Innovation, not just in process or technology but innovation of thought has made it a preferred partner and trusted supplier to leading Automotive giants and elite names in industries like Agriculture, Compressor, Earth Moving Equipment, Petrochemical and Engineering.
Hydraulic Steel Tubes
Having difficulties looking for hydraulic steel tubes? We can help you because we have all sizes.
To further understand more about hydraulic steel tubes, please see the information provided below:
Seamless precision steel tubes, also called hydraulic steel tubes, are made in accordance to DIN 2391/C and DIN 2445/2 standards. There are two common types of seamless steel tubes material available: ST37.4 (E235N) and ST52.4 (E355N). The difference in materials will result in varying working pressure that it can tolerate with same tubing sizes.
The steel tubes have an NBK finishing where tubes are normalized, phosphate, and oiled inside and outside. Seamless precision steel tubes are also commonly referred to as hydraulic tubes or hydraulic pipes.
Features:
Metric Size Range: 4 MM to 120 MM
Inch OD Size Range: 1/4″ to 2″
Inch NB Size Range: 1/8″ to 2 1/2″
Dimension Standard: DIN 2391/C and DIN 2445/2
Material: ST37.4 (E235N) / ST52.4 (E355N)
Working Pressure: As per DIN 2413 I Static Straight Pipe Specifications
Origin: India
Finishing: Normalized, phosphated, and oiled inside and outside(NBK)
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Hydraulic Tubes Information
Introduction:
Rajdhani Udaipur maintains a large stock of hydraulic tubes in steel material. These steel tubes are in accordance to DIN 2391, the standard specification of steel tubes for precision application such as hydraulic and pneumatic power systems, and DIN 2445, the standard specification of seamless steel tubes for dynamic loads.
Steel tubes are available in two kinds of steel material, ST37.4 (E235N) and ST52.4 (E355N). Different materials result from differences in the working pressure that the material can withstand. Grade ST52.4 is a higher grade compared to grade ST37.4, and a higher grade of material quality can reduce wall thickness and weight while maintaining the same working pressure.
Steel Tube Attributes:
Different material grades will lead to differences in attributes. For ST37.4, tensile strength ranges from 340 N/mm² to 480 N/mm², while for ST52.4, the tensile strength ranges from 490 N/mm² to 630 N/mm². Higher tensile strength means higher working pressures with reduced wall thickness, thus leading to reduced tube weight.
The two different steel grades also lead to different yield strengths. The minimum yield strength for ST37.4 is 235 MPa and for ST52.4 it is 355 MPa. However, for steel tubes with an outside diameter that is less than 30MM and a thickness that is less than 3.0MM, the minimum yield strength is 10 MPa lower.There are also differences in chemical composition between ST37.4 and ST52.4. For example, the maximum carbon content for ST37.4 is 0.17%, while the maximum carbon content for ST52.4, is 0.22%. The high carbon content will make the steel harder and stronger through heat treatment. However, it will also cause the steel material to be less ductile and reduce the melting point.
Steel Tube Finishing:
The finishing of tubes under ST37.4 and ST52.4 are NBK, where tubes are normalized, phosphated, and oiled inside and outside. Normalizing is a type of heat treatment process. Heat treatment done to change its the mechanical properties such as hardness, yield strength, and ductility In the normalizing process, steel is heated to a temperature about 55˚C. This process will be continued over a period of time for a transformation namely grain refinement to occur. The steel then will be air-cooled in a room temperature. This results in the steel becoming stronger and harder.
Outer Diameter and Tube Thickness Specifications:
The specifications of the tube outer diameter and tube wall thickness are according to EN 10305-4. Below Hydraulic Steel Tubes Literature will shows the preferred outside diameter, inside diameter, and wall thickness.