SS 409 Prix de la plaque
SS 409 plate is a practical ferritic stainless steel material known for its heat resistance, résistance à l'oxydation, and cost-effective performance. Its titanium-stabilized composition makes it suitable for exhaust systems, industrial heating equipment, and structural fabrication. Pour les applications nécessitant une plus grande résistance à la corrosion, 304 ou 316 stainless steel may be preferred, alors que 409 remains a reliable option for high-temperature industrial use.
- Description
SS 409 plate is a ferritic stainless steel plate widely used in applications requiring good oxidation resistance, résistance à la chaleur, and cost-effective corrosion protection. Although the keyword includes “price,” the value of SS 409 plate is mainly influenced by its material composition, épaisseur, état de surface, et exigences de traitement. Par rapport à 304 acier inoxydable, 409 offers lower chromium content but better economy for structural and high-temperature applications.
Qu'est-ce que SS 409 Plaque?
SS 409 plate is a chromium-based ferritic stainless steel that contains low nickel and added titanium for improved stabilization. It is commonly used in environments where moderate corrosion resistance and high-temperature durability are required. Because of its balanced alloy design, 409 stainless steel is frequently chosen for automotive exhaust systems, industrial heat equipment, et applications structurelles.
This grade is magnetic and cannot be hardened by heat treatment, but it provides excellent weldability and good resistance to oxidation.
Chemical Composition of SS 409 Plaque
The alloy composition of SS 409 plate gives it good thermal stability and resistance to atmospheric corrosion.
| Élément | Contenu (%) |
|---|---|
| Carbone (C) | ≤ 0.08 |
| Chrome (Cr) | 10.5 – 11.75 |
| Nickel (Dans) | ≤ 0.50 |
| Manganèse (Mn) | ≤ 1.00 |
| Silicium (Et) | ≤ 1.00 |
| Phosphore (P.) | ≤ 0.045 |
| Soufre (S) | ≤ 0.03 |
| Titane (De) | 6×C min |
| Fer (Fe) | Équilibre |
The addition of titanium improves weldability and helps prevent intergranular corrosion during high-temperature service.
Mechanical Properties of SS 409 Plaque
SS 409 plate provides moderate strength and good formability for industrial fabrication.
| Propriété | Valeur typique |
|---|---|
| Résistance à la traction | ≥ 380 MPa |
| Limite d'élasticité | ≥ 170 MPa |
| Élongation | ≥ 20% |
| Dureté | ≤ 88 DGRH |
| Densité | 7.7 g/cm³ |
| Melting Range | 1450 – 1510°C |
Its ferritic structure makes it suitable for forming, flexion, and welding in sheet and plate applications.
Main Performance Characteristics
Résistance à la chaleur
SS 409 plate offers good oxidation resistance at elevated temperatures and is commonly used in continuous service up to approximately 675°C.
Résistance à la corrosion
The material provides adequate resistance to atmospheric corrosion, exhaust gases, and mild industrial environments. It performs better than carbon steel but lower than 304 stainless steel in humid or chloride-rich conditions.
Soudabilité
Because of titanium stabilization, SS 409 plate has good weldability and is often processed by laser cutting, soudage, et former.
Rentabilité
Due to its low nickel content, SS 409 is considered a more economical stainless steel grade for applications that do not require premium corrosion resistance.
Applications courantes du SS 409 Plaque
SS 409 stainless steel plate is widely used in industries requiring heat resistance and moderate corrosion protection.
- Systèmes d'échappement automobiles
- Mufflers and catalytic converter shells
- Échangeurs de chaleur
- Composants de chaudière
- Agricultural equipment
- Railway containers
- Supports structurels
- Industrial furnace parts
- Transportation equipment
- Welded tubing and fabricated sheet parts
The material is especially common in applications exposed to high temperatures and intermittent moisture.
SS 409 Plaque vs 304 Acier inoxydable
| Fonctionnalité | SS 409 Plaque | 304 Acier inoxydable |
|---|---|---|
| Structure | Ferritique | Austénitique |
| Magnétique | Oui | Non |
| Teneur en nickel | Faible | Plus haut |
| Résistance à la corrosion | Modéré | Haut |
| Résistance à la chaleur | Bien | Bien |
| Utilisation typique | Systèmes d'échappement | Équipement alimentaire et chimique |
SS 409 is preferred for heat-related structural applications, alors que 304 is chosen for environments requiring better corrosion resistance and hygiene.
Spécifications typiques des plaques
Common available dimensions for SS 409 plaque en acier inoxydable incluse:
| Épaisseur | Largeur | Longueur |
|---|---|---|
| 1.5 mm – 20 mm | 1000 mm – 2000 mm | 2000 mm – 6000 mm |
Cut-to-size processing, surface polishing, and custom fabrication are commonly used for industrial projects.
