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Seamless carbon and alloy steel mechanical tubing plays a crucial role in hydraulic systems, providing a reliable conduit for fluid transmission and power transfer. The American Society for Testing and Materials (ASTM) A519 specification sets the standards for the manufacturing and quality control of such tubing. This article delves into the material, specification, chemical composition, mechanical properties, steel grade, and applications of ASTM A519 seamless carbon and alloy steel mechanical tubing for hydraulic systems.
The ASTM A519 specification covers a range of materials suitable for seamless mechanical tubing, including carbon and alloy steels. These materials are chosen for their excellent mechanical properties and durability, making them well-suited for hydraulic applications where strength and reliability are paramount.
ASTM A519 establishes the requirements for seamless carbon and alloy steel mechanical tubing used in a variety of applications, including hydraulic systems. The specification provides guidelines for dimensions, tolerances, chemical composition, and mechanical properties of the tubing to ensure consistent performance and quality.
The chemical composition of the carbon and alloy steels used in ASTM A519 seamless mechanical tubing can vary depending on the specific grade. However, typical elements found in these steels include carbon (C), manganese (Mn), phosphorus (P), sulfur (S), silicon (Si), chromium (Cr), molybdenum (Mo), and nickel (Ni). The composition is carefully controlled to achieve desired mechanical properties and performance characteristics.
| Element | Range (%) |
|---|---|
| Carbon (C) | 0.15-0.25 |
| Manganese (Mn) | 0.30-0.60 |
| Phosphorus (P) | 0.040 (max) |
| Sulfur (S) | 0.050 (max) |
| Silicon (Si) | 0.15-0.35 |
| Chromium (Cr) | 0.80-1.10 |
| Molybdenum (Mo) | 0.15-0.25 |
| Nickel (Ni) | 0.40-0.70 |
The mechanical properties of ASTM A519 seamless carbon and alloy steel mechanical tubing are vital for ensuring its suitability for hydraulic systems. These properties include tensile strength, yield strength, elongation, and hardness. The tubing must meet or exceed the specified values to withstand the demands of hydraulic applications.
| Property | Minimum Value |
|---|---|
| Tensile Strength | 655 MPa (95,000 psi) |
| Yield Strength | 586 MPa (85,000 psi) |
| Elongation | 20% (min) |
| Hardness | 197 HB (max) |
ASTM A519 seamless carbon and alloy steel mechanical tubing is available in various steel grades to cater to different application requirements. Some commonly used steel grades in hydraulic systems include 1010, 1020, 4130, 4140, and 4340. Each steel grade offers specific mechanical properties and is chosen based on factors such as strength, ductility, and resistance to fatigue.
ASTM A519 seamless carbon and alloy steel mechanical tubing finds extensive use in hydraulic systems across various industries. Some common applications include:
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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.
