DIN 17456 Hydraulic Steel Tube;DIN 17456 Hydraulic Steel Tubing

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DIN 17456 Hydraulic Steel Tube

What is DIN 17456 hydraulic steel tube? DIN 17456 is a German standard that specifies the technical delivery conditions for seamless stainless steel tubes for hydraulic and general purposes.

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What is DIN 17456 hydraulic steel tube?

DIN 17456 is a German standard that specifies the technical delivery conditions for seamless stainless steel tubes for hydraulic and general purposes. It covers various aspects of the tubes, including material grade, chemical composition, mechanical properties, delivery conditions, permissible variations in dimensions, advantages, and applications.

1. DIN17456 Hydraulic Steel Tube Material Grade:

DIN 17456 covers a range of stainless steel grades suitable for hydraulic applications. The most commonly used grades include 1.4301 (X5CrNi18-10), 1.4401 (X5CrNiMo17-12-2), and 1.4571 (X6CrNiMoTi17-12-2). These grades provide excellent corrosion resistance and mechanical properties.

2. DIN17456 Hydraulic Steel Tube Chemical Composition:

The chemical composition of the stainless steel tubes is specified according to the respective material grades. The main elements typically present in these grades are chromium (Cr), nickel (Ni), and sometimes molybdenum (Mo) and titanium (Ti). The exact composition will vary depending on the specific grade.

Material Grade: 1.4301 (X5CrNi18-10)

Chemical Composition (%)	Mechanical Properties
C: ≤ 0.07	Tensile Strength: ≥ 500 MPa
Si: ≤ 1.0	Yield Strength: ≥ 200 MPa
Mn: ≤ 2.0	Elongation: ≥ 35%
P: ≤ 0.045	Hardness: ≤ 215 HB
S: ≤ 0.015
Cr: 17.5 - 19.5
Ni: 8.0 - 10.5

Material Grade: 1.4401 (X5CrNiMo17-12-2)

Chemical Composition (%)	Mechanical Properties
C: ≤ 0.07	Tensile Strength: ≥ 530 MPa
Si: ≤ 1.0	Yield Strength: ≥ 220 MPa
Mn: ≤ 2.0	Elongation: ≥ 35%
P: ≤ 0.045	Hardness: ≤ 215 HB
S: ≤ 0.015
Cr: 16.5 - 18.5
Ni: 10.0 - 13.0
Mo: 2.0 - 2.5

Material Grade: 1.4571 (X6CrNiMoTi17-12-2)

Chemical Composition (%)	Mechanical Properties
C: ≤ 0.08	Tensile Strength: ≥ 530 MPa
Si: ≤ 1.0	Yield Strength: ≥ 220 MPa
Mn: ≤ 2.0	Elongation: ≥ 35%
P: ≤ 0.045	Hardness: ≤ 215 HB
S: ≤ 0.015
Cr: 16.5 - 18.5
Ni: 10.5 - 13.5
Mo: 2.0 - 2.5
Ti: 5 x (C+N) - 0.7

3. DIN17456 Hydraulic Steel Tube Mechanical Property:

DIN 17456 specifies the required mechanical properties for the hydraulic steel tubes. These properties include tensile strength, yield strength, elongation, and hardness. The values vary depending on the material grade and tube dimensions.

4. DIN17456 Hydraulic Steel Tube Delivery Condition:

The standard defines different delivery conditions for the hydraulic steel tubes. The common conditions include annealed and pickled, bright annealed, and cold-drawn. The choice of delivery condition depends on the application requirements and the desired surface finish.

5. DIN17456 Hydraulic Steel Tube Permissible Variations in Dimensions:

DIN 17456 provides tolerances for the dimensions of the hydraulic steel tubes. These tolerances cover outer diameter, wall thickness, length, and straightness. The allowable variations ensure the tubes meet the specified dimensional requirements.

6. DIN17456 Hydraulic Steel Tube Advantages:

- Excellent corrosion resistance due to the use of stainless steel grades.

- High strength and durability, ensuring reliable performance in hydraulic applications.

- Good machinability and formability, allowing for easy fabrication and installation.

- Wide availability and compatibility with various hydraulic systems.

7. DIN17456 Hydraulic Steel Tube Application:

DIN 17456 hydraulic steel tubes are primarily used in hydraulic systems and general-purpose applications. They find application in industries such as automotive, aerospace, marine, construction, and machinery. These tubes are utilized for transporting fluids under high pressure, such as hydraulic oil, fuel, and coolant.

DIN 17456 Hydraulic Steel Tube