In the specification, it is DIN2391-1. The raw materials of hydraulic steel pipes are processed through precision drawing, non oxidation bright light heat treatment (NBK state), non-destructive testing, high-pressure flushing and acid washing of the inner holes of the steel pipes, rust prevention treatment of the inner and outer walls of the steel pipes with rust proof oil, and dust prevention treatment with two end covers. The produced steel pipe has high precision and good smoothness. The inner and outer walls of the hydraulic steel pipe have no oxide layer, and the steel pipe can withstand the high pressure of liquid flow. The steel pipe does not deform during cold bending, and can be expanded or flattened without cracks. Mechanical properties can bend without deformation at any viewpoint. Mainly used for manufacturing steel pipes in hydraulic system oil circuits, also known as hard piping in hydraulic systems. Fine steel pipes are commonly used for cars, with a standard outer diameter (D) Φ 4mm-76mm, wall thickness (S) 0.5mm-6.0mm.
The length is a fixed length of 6 meters (excluding customized), and the delivery status is NBK (normalized), GBK (annealed), and BKS (stress relieved annealing). Customers who are satisfied with the requirements for high precision, high smoothness, tensile strength, and mechanical properties of steel pipes, such as ST35, ST37.4 (10 #), ST45 (20 #), ST55 (35 #), and ST52 (16Mn), are selected as the primary materials.
In the specification, it is DIN2391-1. The raw materials of hydraulic steel pipes are processed through precision drawing, non oxidation bright light heat treatment (NBK state), non-destructive testing, high-pressure flushing and acid washing of the inner holes of the steel pipes, rust prevention treatment of the inner and outer walls of the steel pipes with rust proof oil, and dust prevention treatment with two end covers. The produced steel pipes have high precision and good smoothness. There is no oxide layer on the inner and outer walls of the steel pipes. The steel pipes can withstand the high pressure of liquid flow, and the steel pipes do not deform during cold bending. They can be expanded or flattened without cracks.
Mechanical properties can bend without deformation at any viewpoint. Mainly used for manufacturing steel pipes in hydraulic system oil circuits, also known as hard piping in hydraulic systems. Fine steel pipes are commonly used for cars, with a standard outer diameter (D) Φ 4mm-76mm, wall thickness (S) 0.5mm-6.0mm. The length is a fixed length of 6 meters (excluding customized), and the delivery status is NBK (normalized), GBK (annealed), and BKS (stress relieved annealing). Customers who are satisfied with the requirements for high precision, high smoothness, tensile strength, and mechanical properties of steel pipes, such as ST35, ST37.4 (10 #), ST45 (20 #), ST55 (35 #), and ST52 (16Mn), are selected as the primary materials.
Introduction to the European standard EN10305-4:2003 for hydraulic steel pipes: The produced fine hydraulic steel pipes are seamless pipes after fine cold drawing, which are made by oxygen free tempering treatment to eliminate external and internal stress, and then by phosphating and rust prevention treatment. The product has high dimensional accuracy, good ductility, and can be easily processed and bent into various desired shapes without reducing or flattening the pipe cross-section; The outer surface of the pipe has high precision and is moderately hard after oxygen free tempering treatment, making it easy to connect with clamps. The inner hole and outer surface can be directly installed without the need for acid cleaning and rust removal after phosphating and rust prevention treatment.
New Gapower metal is a professional steel pipe manufacturer, the size from OD6mm to 273mm, thickness is from 0.5mm to 35mm. The steel grade could be ST35 ST37 ST44 ST52 42CRMO4, S45C CK45 SAE4130 SAE4140 SCM440 etc. Welcome customer to inquire and visit to the factory.
Post time: Nov-16-2023