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Stainless steel carbon composite pipes, specified by the standard GB/T 18704, are widely used in structural applications due to their unique combination of stainless steel and carbon steel. These pipes offer enhanced properties such as excellent corrosion resistance and high strength, making them suitable for various industrial sectors.
In this article, we will explore the material, specifications, key features, chemical composition, mechanical properties, steel grade, application, possible alternative grades, and more related to GB/T 18704 stainless steel carbon composite pipes.
The GB/T 18704 standard specifies the requirements for stainless steel carbon composite pipes used for structural purposes. The pipes consist of a corrosion-resistant stainless steel cladding layer and a carbon steel core, fused together through a metallurgical process.
The specification covers a range of dimensions, including outer diameter, thickness, and length. It also includes tolerances, surface finishes, and other relevant parameters to ensure the quality and performance of these pipes.
GB/T 18704 stainless steel carbon composite pipes offer several key features that make them a preferred choice in structural applications:
Corrosion Resistance: The stainless steel cladding on the composite pipe provides excellent corrosion resistance, protecting the inner carbon steel core from corrosive elements.
High Strength: The combination of stainless steel and carbon steel provides enhanced mechanical strength, making these pipes suitable for structural applications that require durability and load-bearing capacities.
Cost-Effectiveness: Stainless steel carbon composite pipes offer an economical solution by utilizing the corrosion resistance of stainless steel in critical areas while utilizing carbon steel for support and load-bearing purposes.
Versatility: These pipes can be fabricated and customized to meet various structural requirements, including different shapes, sizes, and connection methods.
The chemical composition of GB/T 18704 stainless steel carbon composite pipes typically includes the following elements:
| Element | Composition Range (%) |
|---|---|
| Carbon (C) | 0.08 max |
| Silicon (Si) | 0.75 max |
| Manganese (Mn) | 2.00 max |
| Phosphorus (P) | 0.04 max |
| Sulfur (S) | 0.04 max |
| Chromium (Cr) | 16.00-18.00 |
| Nickel (Ni) | 6.00-10.00 |
Note: The exact composition may vary depending on the specific grades and requirements.
The mechanical properties of GB/T 18704 stainless steel carbon composite pipes are crucial in determining their performance and suitability for structural purposes. The following table presents the typical mechanical properties:
| Property | Minimum Value |
|---|---|
| Tensile Strength | 450 MPa min |
| Yield Strength | 280 MPa min |
| Elongation | 25% min |
| Hardness (HRB) | 85 max |
Note: These are minimum values and can vary depending on the grade and pipe dimensions.
GB/T 18704 stainless steel carbon composite pipes are available in different grades based on the specific requirements. Commonly used steel grades include:
GB/T 18704 stainless steel carbon composite pipes find application in various structural purposes, including but not limited to:
Depending on specific requirements and availability, alternative steel grades that can be considered as alternatives to GB/T 18704 stainless steel carbon composite pipes include:
When selecting alternative grades, it is essential to consider the specific application, budget, and desired properties.
Haiyan Sanxin Steel Pipe Factory is a leading manufacturer of steel pipes in China. Located in a region with excellent geographical advantages, the factory is situated close to the Zhoushan Port and Ningbo Port.
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.
A: manufacturer,also can do trading.
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.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
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.