TP409 Ferritic Stainless Steel Tube: Stainless Steel Seamless Tube For General Service
Introduction
TP409 is a ferritic stainless steel tube commonly chosen for its excellent corrosion resistance and mechanical properties. It is widely used in a variety of industrial applications, including automotive exhaust systems, where strength and durability are critical. Below is a comprehensive guide covering the material, specifications, key features, chemical composition, mechanical properties, similar standards, and applications of the TP409 seamless tube.
Material
TP409 is part of the ferritic stainless steel family which generally contains between 10.5% and 30% chromium. This material is known for its good weldability, formability, and oxidation resistance.
Specification
- Type: Ferritic Stainless Steel
- Grade: TP409
- Form: Seamless Tube
- Applications: General service, mainly used in automotive exhaust systems
Key Features
- Corrosion Resistance: Ideal for applications exposed to environmental and industrial atmospheres.
- Thermal Conductivity: Offers better thermal conductivity than austenitic grades.
- Cost-Effectiveness: More economical compared to austenitic stainless steels.
- Oxidation Resistance: Performs well in high-temperature environments.
- Weldability: Easily welded using standard welding methods.
Chemical Composition
| Element |
Composition (%) |
| Chromium |
10.5 - 11.75 |
| Nickel |
0.5 max |
| Carbon |
0.08 max |
| Manganese |
1.0 max |
| Silicon |
1.0 max |
| Phosphorus |
0.045 max |
| Sulfur |
0.03 max |
| Titanium |
6xC% min to 0.75 max |
Mechanical Properties
| Property |
Value |
| Tensile Strength |
≥ 415 MPa |
| Yield Strength |
≥ 205 MPa |
| Elongation |
≥ 20% |
| Hardness |
≤ 88 HRB |
Similar Standards and Steel Grades
ASTM, EN, GOST, JIS, GB
- ASTM: A268 / A268M
- EN: 1.4512
- GOST: 08Ch17T
- JIS: SUS409
- GB: 1CrTi
Application
TP409 ferritic stainless steel seamless tubes are predominantly used in:
- Automotive: Ideal for exhaust system components due to its thermal and corrosion resistance.
- Construction: Suitable for parts needing durability and a non-oxidizing surface.
- Agricultural Equipment: Used in elements exposed to environmental stresses.
- Industrial Machinery: Functions well in various manufacturing processes requiring stability at higher temperatures.
- Energy Sector: Utilized in components where moderate corrosion resistance is essential.
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