ASTM A519 MT 1010 MT 1015 MT X1015 MT 1020 MT X1020 Seamless Low Carbon And Alloy Steel Tube
Introduction
ASTM A519 is a specification that covers seamless carbon and alloy steel mechanical tubing. This standard is crucial for applications requiring high strength and durability. The grades MT 1010, MT 1015, MT X1015, MT 1020, and MT X1020 are specifically designed for mechanical applications, offering a range of properties suitable for various industrial uses.
Material
The materials used in the production of ASTM A519 tubes are low carbon and alloy steels. These materials are selected for their excellent mechanical properties, weldability, and machinability.
Specification
The ASTM A519 specification outlines the requirements for seamless mechanical tubing, including dimensions, tolerances, and mechanical properties. The specification ensures that the tubes meet the necessary standards for performance in mechanical applications.
Key Features
- Seamless Construction: Provides uniform strength and eliminates the risk of weld defects.
- Versatility: Suitable for a wide range of applications in various industries.
- High Strength: Offers excellent tensile and yield strength.
- Good Machinability: Allows for easy fabrication and processing.
Chemical Composition
| Grade |
Carbon (C) |
Manganese (Mn) |
Phosphorus (P) |
Sulfur (S) |
Chromium (Cr) |
Nickel (Ni) |
Molybdenum (Mo) |
| MT 1010 |
0.08-0.13 |
0.30-0.60 |
≤0.04 |
≤0.05 |
- |
- |
- |
| MT 1015 |
0.13-0.18 |
0.30-0.60 |
≤0.04 |
≤0.05 |
- |
- |
- |
| MT X1015 |
0.13-0.18 |
0.30-0.60 |
≤0.04 |
≤0.05 |
- |
- |
- |
| MT 1020 |
0.18-0.23 |
0.30-0.60 |
≤0.04 |
≤0.05 |
- |
- |
- |
| MT X1020 |
0.18-0.23 |
0.30-0.60 |
≤0.04 |
≤0.05 |
- |
- |
- |
Mechanical Properties
| Grade |
Yield Strength (ksi) |
Tensile Strength (ksi) |
Elongation (%) |
Hardness (HB) |
| MT 1010 |
30 |
50-70 |
25 |
120-180 |
| MT 1015 |
35 |
60-80 |
25 |
130-190 |
| MT X1015 |
35 |
60-80 |
25 |
130-190 |
| MT 1020 |
40 |
70-90 |
20 |
140-200 |
| MT X1020 |
40 |
70-90 |
20 |
140-200 |
Steel Grade
The steel grades under ASTM A519 are categorized based on their carbon content and mechanical properties. Each grade is tailored for specific applications, ensuring optimal performance.
Application
ASTM A519 tubes are widely used in various applications, including:
- Automotive components
- Machinery parts
- Structural applications
- Hydraulic cylinders
- Oil and gas industry components
Possible Alternative Grades
While ASTM A519 grades are widely used, alternative grades may be considered based on specific requirements:
- ASTM A106: Seamless carbon steel pipe for high-temperature service.
- ASTM A335: Seamless ferritic alloy steel pipe for high-temperature service.
- ASTM A500: Cold-formed welded and seamless carbon steel structural tubing.
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