4130 Precision Seamless Tubing
Material and Specification
4130 Precision Seamless Tubing is a type of steel tubing known for its excellent strength, toughness, and weldability. It is commonly used in various applications where high tensile strength and resistance to corrosion are required. The material is characterized by its chromium and molybdenum content, which enhances its properties and makes it suitable for critical engineering applications.
The specifications of 4130 Seamless Tubing typically adhere to industry standards such as ASTM A519 or AMS 6360.
Chemical Composition
The chemical composition of 4130 Seamless Tubing plays a crucial role in determining its mechanical properties. Below is the typical chemical composition of this steel tubing:
| Element | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Silicon (Si) | Chromium (Cr) | Molybdenum (Mo) |
| Weight % | 0.28-0.33 | 0.40-0.60 | 0.020 max | 0.025 max | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
Mechanical Properties
The mechanical properties of 4130 Seamless Tubing make it highly desirable for various industrial applications. It offers an excellent balance of strength and toughness. The following table outlines the typical mechanical properties:
| Property | Value |
| Tensile Strength | 75,000 - 95,000 psi (min) |
| Yield Strength | 55,000 - 75,000 psi (min) |
| Elongation | 20% (in 2 inches) |
| Hardness | 89 HRB (Rockwell Hardness) |
Steel Grade
4130 Seamless Tubing belongs to the low-alloy steel grade family, which contains chromium and molybdenum as alloying elements. This steel grade is known for its outstanding combination of strength, toughness, and weldability, making it a popular choice in various industries.
Application
The versatility of 4130 Seamless Tubing makes it suitable for a wide range of applications. Some of the common uses include:
Aerospace: 4130 tubing is widely used in aircraft structures, where its high strength-to-weight ratio and fatigue resistance are highly valued.
Automotive: This tubing is employed in automotive components like roll cages, suspension systems, and chassis parts, where strength and durability are essential.
Oil and Gas: 4130 tubing finds application in the oil and gas industry for components subjected to high-pressure and corrosive environments.
Industrial Equipment: It is utilized in various industrial machinery and equipment, such as hydraulic cylinders and shafts.
Bicycles: Many high-performance bicycles use 4130 tubing in their frames due to its favorable mechanical properties.
Sporting Equipment: It is also used in the construction of high-end sporting equipment like golf club shafts.
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