Stainless Steel 409M Angles are designed to deliver excellent strength, durability, and cost efficiency for structural and industrial applications. As a modified ferritic stainless steel grade, SS 409M angles are widely used in projects where moderate corrosion resistance and high mechanical strength are required at an economical price.
Stainless steel 409M angles are characterized by their ferritic microstructure. The “M” stands for “Modified,” indicating a refinement in the alloy to enhance its weldability and mechanical properties compared to the standard 409 grade. Originally designed for automotive exhaust systems, 409M has evolved into a versatile structural material.
Chemical Properties of 409M Angles:
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.03 |
| Silicon (Si) | 0.40–0.75 |
| Manganese (Mn) | 0.80–1.20 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 11.00–12.00 |
| Nickel (Ni) | ≤ 1.50 |
| Nitrogen (N) | ≤ 0.03 |
| Titanium (Ti) | As required |
| Iron (Fe) | Balance |
Mechanical Properties of Stainless Steel 409M Angles:
| Property | Value (min – typical) |
|---|---|
| Tensile Strength | 450 MPa |
| Yield Strength (0.2%) | 240–275 MPa |
| Elongation (% in 50mm) | 22–25% |
| Hardness (HRB max) | 75–92 HRB |
| Hardness (HB max) | 131–217 HB |
Physical Properties of 409M Angles:
| Property | Value |
|---|---|
| Density | 7.80–7.89 g/cm³ |
| Melting Range | 1425–1510°C |
| Modulus of Elasticity | 200 GPa |
| Thermal Conductivity (100°C) | 25.8 W/m·K |
| Specific Heat (0–100°C) | 460 J/kg·K |
| Electrical Resistivity | 600 nΩ·m |
Product Specifications:
| Property | Details |
|---|---|
| Product | Stainless Steel 409M Angles |
| Length | 8-10 ft. |
| Shape / Thickness | L shape / 15 mm |
| Min. Order Quantity | 200 Kgs |
Applications of 409M Angles:
- Material handling: Chutes, hoppers, and conveyor structures
- Transportation: Framing for buses, trucks, and rail wagons
- Agriculture: Support structures for silos and spreaders exposed to fertilizers and moisture
- Waste management: Containers and structural supports
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