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Product Overview
Introduction to Stainless Steel 405 / AISI 405 / UNS S40500
MOKSH TUBES & FITTINGS LLP is a trusted supplier, exporter, importer, and stockist of a comprehensive range of Stainless Steel 405 products, including Pipes & Tubes, Pipe Fittings, Flanges, Fasteners, Sheets & Plates, Coils, Wires, Round Bars, Flat Bars, Angles, Channels, Wire Mesh, and various custom or hard-to-find components.
Stainless Steel 405 is a 12% chromium ferritic stainless steel, specially designed to minimize hardening when cooled from high temperatures. The addition of aluminium (~0.10–0.30%) improves its oxidation resistance and prevents excessive hardening during welding, making it particularly useful for welded or fabricated applications where post-weld annealing is not practical.
This grade offers moderate corrosion resistance, good weldability, excellent scaling resistance, and is magnetic in all conditions. It’s frequently used in automotive exhaust systems, annealing boxes, steam nozzles, turbine blades, and structural components exposed to mild environments.
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Chemical Composition of Stainless Steel 405
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 1.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorus (P) | 0.040 max |
| Sulfur (S) | 0.030 max |
| Chromium (Cr) | 11.5 – 14.5 |
| Aluminium (Al) | 0.10 – 0.30 |
| Nickel (Ni) | ≤ 0.75 |
| Iron (Fe) | Balance |
Mechanical Properties of Stainless Steel 405
| Property | Metric | Imperial |
|---|---|---|
| Tensile Strength | 380 – 540 MPa | 55,000 – 78,000 psi |
| Yield Strength (0.2%) | 205 – 275 MPa | 30,000 – 40,000 psi |
| Elongation | 20% | 20% |
| Hardness (Brinell) | 150 – 170 HB | 150 – 170 HB |
👉 SS 405 offers excellent thermal stability, oxidation resistance, and weldability, making it ideal for fabricated components exposed to heat.
Products in Stainless Steel 405
MOKSH TUBES & FITTINGS LLP supplies a wide range of Stainless Steel 405 products in various forms. These products are widely used in industries such as Chemical Processing, Power Generation, Oil & Gas, Pulp & Paper, and many other engineering sectors. Stainless Steel 405 offers excellent oxidation and scaling resistance along with good ductility and machinability, making it suitable for applications that require moderate corrosion resistance and formability under elevated temperatures. It is an ideal material for components that must maintain mechanical integrity and durability in heat and mildly corrosive environments.
MOKSH TUBES & FITTINGS LLP supplies Stainless Steel 405 in a wide variety of product forms, including:
Uses and Advantages
Excellent oxidation resistance due to aluminium addition
Superior weldability with minimized air-hardening
Fully magnetic ferritic structure
Good dimensional stability during fabrication
Moderate corrosion resistance in mild environments
Cost-effective alternative to austenitic grades for thermal applications
Applications of Stainless Steel 405
Stainless Steel 405 is widely used in thermal and structural applications, particularly where weldability and oxidation resistance are critical:
Chemical Processing
Oil & Gas
Marine
Pharmaceutical
Heat Exchangers
Power Plants
Why Choose Us?
FAQ's – Stainless Steel 405
What is Stainless Steel 405?
Stainless Steel 405 is a ferritic stainless steel with good oxidation and moderate corrosion resistance. It is widely used in automotive and engineering parts that require durability and cost-effectiveness.
What are the key properties of Stainless Steel 405?
It provides good corrosion resistance, excellent oxidation resistance, magnetic properties, and high ductility, making it ideal for heat and fabrication-intensive applications.
Where is Stainless Steel 405 commonly used?
It is widely used in exhaust systems, furnace parts, turbine blades, annealing boxes, and welded structural applications.
Is Stainless Steel 405 weldable?
Yes, it is weldable using standard techniques. However, proper heat control is required to minimize embrittlement and maintain corrosion resistance.
Why choose MOKSH TUBES & FITTINGS LLP for Stainless Steel 405?
MOKSH TUBES & FITTINGS LLP provides premium-grade Stainless Steel 405 products with precise manufacturing, consistent quality, and global supply capabilities. We ensure reliable performance and timely delivery for diverse industrial needs worldwide.
Contact Us
For inquiries or to request a quote, reach out to Moksh Tubes & Fittings LLP – your reliable partner for Stainless Steel 405 products.
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