GB/T 8713 Precision Seamless Pipe: Precision Inner Diameter Seamless Steel Tubes for Hydraulic Applications
Material
The GB/T 8713 standard specifies the requirements for precision seamless steel tubes, particularly designed for hydraulic applications. These tubes are manufactured from high-quality steel grades that ensure durability and performance under high pressure.
Specification
The specifications for GB/T 8713 include dimensions, tolerances, and mechanical properties that are essential for hydraulic systems. The tubes are available in various diameters and wall thicknesses to meet specific application needs.
Key Features
- Precision Manufacturing: High dimensional accuracy and smooth inner surfaces.
- High Strength: Designed to withstand high pressure and stress.
- Corrosion Resistance: Suitable for various environments, including those with moisture and chemicals.
- Versatile Applications: Ideal for hydraulic systems, automotive, and machinery.
Chemical Composition
| Element | Percentage (%) |
| Carbon (C) | 0.10 - 0.25 |
| Manganese (Mn) | 0.30 - 0.60 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.025 |
| Silicon (Si) | 0.10 - 0.40 |
| Chromium (Cr) | 0.40 - 1.00 |
| Nickel (Ni) | 0.40 - 1.00 |
Mechanical Properties
| Property | Value |
| Yield Strength (MPa) | ≥ 350 |
| Tensile Strength (MPa) | ≥ 450 |
| Elongation (%) | ≥ 20 |
| Hardness (HB) | ≤ 200 |
Steel Grade
The steel grades specified under GB/T 8713 include various classifications based on chemical composition and mechanical properties. Common grades include:
- ST37: Low carbon steel, good weldability.
- ST52: High strength steel, suitable for high-pressure applications.
Application
Precision seamless pipes are widely used in hydraulic systems, including:
- Hydraulic cylinders
- Hydraulic pumps
- Automotive hydraulic systems
- Industrial machinery
Possible Alternative Grades
In addition to the standard grades specified in GB/T 8713, the following alternative grades may be considered based on specific application requirements:
- ASTM A106: Standard specification for seamless carbon steel pipes.
- EN 10210: Hot finished structural hollow sections of non-alloy and fine grain steels.
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Our factory covers an area of more than 25,000 square meters and has been in the steel pipe manufacturing business for 20 years. Over this period, we have accumulated a wealth of professional experience, which has helped us establish ourselves as a trusted name in the industry.
At our factory, we specialize in the production of various types of steel pipes, including stainless steel pipe, carbon steel pipe, copper pipe, steel pipe,seamless steel pipe and welded pipe. Our expertise in this field is evident from the 12 patents that we hold, which demonstrate our commitment to innovation and excellence.
Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact with me.
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GB/T 8713 Precision Seamless Pipe Precision Inner Diameter Seamless Steel Tubes For Hydraulic Images
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