30CrMo 4130 Alloy Seamless Pipe Seamless Steel Tube For Gas Cylinder
30CrMo 4130 Alloy Seamless Pipe Seamless Steel Tube For Gas Cylinder
Material
30CrMo, also known as 4130 alloy steel, is a low-alloy steel containing chromium and molybdenum as strengthening agents. It is known for its excellent strength-to-weight ratio, making it a popular choice for various industrial applications, including gas cylinders.
Specification
The 30CrMo 4130 alloy seamless pipe is manufactured to meet specific standards and specifications to ensure high performance and safety. Common specifications include:
- Standard: ASTM A519, AISI 4130
- Outer Diameter: 10mm to 1000mm
- Wall Thickness: 1mm to 100mm
- Length: Up to 12 meters or as required
- Surface Treatment: Black painting, anti-rust oil, galvanized, etc.
Key Features
- High Strength: Offers excellent tensile strength and toughness.
- Good Weldability: Can be easily welded using conventional methods.
- Corrosion Resistance: Provides moderate resistance to corrosion.
- Versatility: Suitable for a wide range of applications, including gas cylinders, automotive parts, and structural components.
Chemical Composition
The chemical composition of 30CrMo 4130 alloy steel is crucial for its mechanical properties and performance. Below is a typical composition table:
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.28 - 0.33 |
| Manganese (Mn) | 0.40 - 0.60 |
| Silicon (Si) | 0.15 - 0.35 |
| Chromium (Cr) | 0.80 - 1.10 |
| Molybdenum (Mo) | 0.15 - 0.25 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 |
Mechanical Properties
The mechanical properties of 30CrMo 4130 alloy steel are essential for its performance in demanding applications. Here is a table of typical mechanical properties:
| Property | Value |
|---|---|
| Tensile Strength | 560 - 760 MPa |
| Yield Strength | 460 MPa |
| Elongation | 20% |
| Hardness | 217 HB |
Similar Standards and Steel Grades
30CrMo 4130 alloy steel is comparable to several other standards and steel grades, including:
- DIN 1.7218
- JIS SCM430
- EN 25CrMo4
These equivalents offer similar mechanical properties and chemical compositions, making them interchangeable in many applications.
Application
30CrMo 4130 alloy seamless pipes are widely used in various industries due to their excellent mechanical properties and versatility. Common applications include:
- Gas Cylinders: Ideal for high-pressure gas storage due to its strength and durability.
- Automotive Components: Used in the manufacturing of roll cages, chassis, and other structural parts.
- Aerospace: Suitable for aircraft engine mounts and other critical components.
- Oil and Gas: Utilized in drilling rigs and other equipment requiring high strength and toughness.
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