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Custom Metal Hydraulic Lines for Hydraulic Equipment and Machinery

Product Description

International Standards

DIN 2391: For seamless steel pipes for hydraulic systems and high-pressure applications.
ASTM A179: For manufacturing hydraulic pipes suitable for high pressure and strength.
EN 10305-4: Standard for precision tubes and hydraulic piping systems.

Cold Drawn/Rolled Seamless Precision Steel Tubes Confirming To DIN2391;EN10305-1;EN10305-4

OD	Thickness（mm）
mm	Thickness（mm）
6	6*1	6*1.5
8	8*1	8*1.5	8*2
10	10*1	10*1.5	10*2
12	12*1	12*1.5	12*2	12*2.5
14	14*1	14*1.5	14*2	14*2.5	14*3
15	15*1	15*1.5	15*2	15*2.5	15*3
16	16*1	16*1.5	16*2	16*2.5	16*3
18		18*1.5	18*2	18*2.5	18*3	18*3.5	18*4
20		20*1.5	20*2	20*2.5	20*3	20*3.5	20*4
22		22*1.5	22*2	22*2.5	22*3	22*3.5	22*4
25			25*2	25*2.5	25*3	25*3.5	25*4
28			28*2	28*2.5	28*3	28*3.5	28*4
30			30*2	30*2.5	30*3	30*3.5	30*4	30*4.5	30*5
32			32*2	32*2.5	32*3	32*3.5	32*4	32*4.5	32*5
34			34*2	34*2.5	34*3	34*3.5	34*4	34*4.5	34*5	34*6
35			35*2	35*2.5	35*3	35*3.5	35*4	35*4.5	35*5	35*6
38			38*2	38*2.5	38*3	38*3.5	38*4	38*4.5	38*5	38*6
40				40*2.5	40*3	40*3.5	40*4	40*4.5	40*5	40*6
42				42*2.5	42*3	42*3.5	42*4	42*4.5	42*5	42*6
45				45*2.5	45*3	45*3.5	45*4	45*4.5	45*5	45*6
46				46*2.5	46*3	46*3.5	46*4	46*4.5	46*5	46*6
48				48*2.5	48*3	48*3.5	48*4	48*4.5	48*5	48*6
50				50*2.5	50*3	50*3.5	50*4	50*4.5	50*5	50*6
54					54*3	54*3.5	54*4	54*4.5	54*5	54*6
60					60*3	60*3.5	60*4	60*4.5	60*5	60*6	60*8
Note: 1. We can produce other specification as your requirements. 2. Surface treatment: Bright, galvanized (yellow, white, colorful), phosphated，army green passivation.

Features

- - High Pressure Resistance: Able to withstand extremely high hydraulic pressures, suitable for heavy machinery and hydraulic systems.
  - Excellent Corrosion Resistance: Surface treatments like phosphating and galvanization enhance corrosion protection and extend service life.
  - Smooth Surface: The surface finish ensures minimal friction during fluid flow, which is crucial for fluid transportation.
  - Precision Dimensions: Cold drawing ensures exact measurements, ideal for precision hydraulic systems.
  - Seamless Design: The seamless construction increases pressure resistance and enhances reliability.

Hydraulic Equipment: Used in various hydraulic systems, including hydraulic cylinders, pumps, and valves, to transport hydraulic oil.
Construction Machinery: Widely used in hydraulic systems of excavators, loaders, bulldozers, and other heavy machinery.
Automotive Industry: Used in automotive hydraulic braking systems and power steering systems.
Aerospace: Used for high-pressure fluid transfer in aerospace equipment.
Marine Applications: Used in ship hydraulic systems and offshore oil rigs.
Manufacturing and Metallurgical Industries: Used for high-pressure fluid transmission in machinery and equipment.

Specifications

Specification	Details
Material Type	Carbon Steel, Alloy Steel, Stainless Steel
Diameter Range	4mm – 100mm
Wall Thickness Range	0.5mm – 20mm
Length	Standard 6m/pc
Surface Treatment	Passivation, Galvanization, Phosphating, Anti-corrosion treatments
Pressure Rating	Suitable for high pressure, up to 25,000 psi
Standards	DIN 2391, ASTM A179, EN 10305-4, etc.
Delivery Condition	Annealed, Normalized, Cold Drawn

Manufacturing Process

Cold Drawing: The cold drawing process reduces pipe diameter and increases precision, ensuring uniform thickness and strength.
Pickling: Removal of surface oxides and impurities to enhance the surface quality of the pipe.
Annealing: Heat treatment process to eliminate internal stress and improve material ductility and toughness.
Phosphating/Galvanization: Enhances corrosion resistance and surface wear properties of the tubes.
Seamless Manufacturing: Eliminates weak points from welding, ensuring higher pressure resistance and durability.

Piercing: Solid steel rods are pierced to create hollow tubes.
Cold Drawing: Tubes are drawn to the desired size with high precision, ensuring strength and durability.
Annealing: Applied to relieve internal stress and improve mechanical properties.
Pickling and Surface Treatment: Removal of impurities and enhancement of corrosion resistance.
Final Testing: Pressure testing and quality checks are performed to ensure compliance with standards.