ASTM A513 Honed Tube and Pipe
Material and Specification
ASTM A513 is a standard specification for electric-resistance-welded carbon and alloy steel mechanical tubing. It covers round, square, rectangular, and special shape tubing, and is commonly used for various mechanical applications.
Chemical Composition
The chemical composition of ASTM A513 honed tubes and pipes is as follows:
| Element | Composition Range (%) |
| Carbon (C) | 0.10 - 0.20 |
| Manganese (Mn) | 0.30 - 0.60 |
| Phosphorus (P) | 0.035 (max) |
| Sulfur (S) | 0.035 (max) |
Mechanical Properties
The mechanical properties of ASTM A513 honed tubes and pipes are dependent on the steel grade used and the heat treatment applied. The standard specifies various grades, each with different mechanical properties. The common grades and their typical mechanical properties are as follows:
Steel Grade: ASTM A513 Type 1
| Property | Value |
| Tensile Strength | 310 MPa (min) |
| Yield Strength | 210 MPa (min) |
| Elongation (%) | 20 (min) |
| Hardness (HRB) | 60 (max) |
Steel Grade: ASTM A513 Type 2
| Property | Value |
| Tensile Strength | 365 MPa (min) |
| Yield Strength | 225 MPa (min) |
| Elongation (%) | 15 (min) |
| Hardness (HRB) | 65 (max) |
Steel Grade: ASTM A513 Type 3
| Property | Value |
| Tensile Strength | 410 MPa (min) |
| Yield Strength | 290 MPa (min) |
| Elongation (%) | 10 (min) |
| Hardness (HRB) | 75 (max) |
Application
ASTM A513 honed tubes and pipes find wide application in various mechanical and engineering projects. Some common uses include:
Hydraulic Cylinders: The honed tubes are often used to manufacture hydraulic cylinders, which are essential components in various industrial and mobile machinery applications.
Automotive Parts: These tubes are utilized to fabricate automotive components, such as shock absorbers, steering systems, and axle shafts.
Machinery and Equipment: ASTM A513 honed tubes play a vital role in constructing machinery and equipment like cranes, excavators, and agricultural machinery.
Precision Engineering: Due to their smooth surface finish and dimensional accuracy, these tubes are used in precision engineering applications.
Construction: They are also employed in construction projects, especially for scaffolding and support structures.
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