CALIFICACIÓN
Calificación 441 (UNS S44100, EN 1.4509) is dual-stabilized Ferritic stainless steel with 18% cromo, bajo en carbono. This grade exhibits good high temperature strength, exceeding that of grade 409L and 439 plus good corrosion resistance in many exhaust gas environments and good oxidation resistance at elevated temperatures.
Ferritic steels are not inherently strong at elevated temperatures, but columbium additions coupled with appropriate solution annealing markedly improve long-time creep rupture strength, and this makes it suitable for using in application in tube and automotive industries.
Calificación 441 is dual stabilized with niobium and titanium to provide good weld ductility and resistance to intergranular corrosion in the weld heat affected zone, which can be formed using a wide range of roll forming, mild stretch-bending or common drawing operations.
PROPIEDADES
- Corrosion resistance in many exhaust gas environments
- Cyclic oxidation resistance
- Creep resistance
- Excellent formability and good weldability
- Good ductility
- Bueno para dibujos profundos
- Good high-temperature strength
- Good for polish
- Ease of fabrication
CHEMICAL COMPOSITION AND PHYSICAL PROPERTIES FOR 441
| Artículo | DO% | Y% | Minnesota% | PAG% | S% | En% | Cr% | NORTE% | Ti% | Nb% | Otros |
|---|---|---|---|---|---|---|---|---|---|---|---|
| mín. | — | — | — | — | — | — | 17.50 | 0.10 | 0.3+3 | — | |
| máx. | 0.03 | 1.00 | 1.00 | 0.04 | 0.015 | — | 18.50 | 0.60 | 1.00 | — |
| Artículo | Tensile Test | Prueba de dureza | ||||
|---|---|---|---|---|---|---|
| 0.2%Y.S. | 1%Y.S. | T.S. | EL (%) | HRB | alto voltaje | |
| mín. | 250 | — | 430 | 18 | — | — |
| máx. | N/mm2 | — | 630 | — | — | — |
SOLICITUD
- Automotive exhaust manifold and other exhaust-system components
- Catalytic converter shells
- Clamps
- Kitchen catering appliance, such as work surfaces, shelving, extractor hoods and hobs, se hunde,
- Wall panels and claddings
- Paneles de ascensor, doors and frames
- Tubos
- Intercambiadores de calor
- Exhaust system parts
PRESUPUESTO
- ASTM A240M – Cromo y Cromo – Placa de acero inoxidable al níquel, Láminas y Tiras para Recipientes a Presión y Aplicaciones Generales.
- ASTM 480M – Requisitos generales para placas de acero inoxidable laminadas planas y resistentes al calor, Hoja y tira
- EN 10088-2 (1.4509) – Acero Inoxidable Condiciones técnicas de entrega de chapa, Placas y tiras de aceros resistentes a la corrosión para uso general.
ACABADOS DE MATERIA PRIMA & Tamaños disponibles
| 2D | un uniforme, acabado gris plateado opaco, que resulta del laminado en frío seguido de recocido y descascarillado.. | |||||
|---|---|---|---|---|---|---|
| Rango | 914 (3′) | 1000 | 1219 (4′) | 1250 | 1500 | 1524 (5′) |
| 0.3milímetros ~ 3,0 mm | ◇ | ◆ | ◆ | ◆ | ◆ | ◆ |
| 30Ga ~ 11s | ◇ | ◆ | ◆ | ◆ | ◆ | ◆ |
| 0.012″ ~ 0,1196″ | ◇ | ◆ | ◆ | ◆ | ◆ | ◆ |
| 2B (Acabado del molino) |
un brillante, Acabado laminado en frío que resulta de la misma manera que el acabado 2D., excepto que la lámina recocida y desincrustada recibió un paso final ligero a través de rodillos pulidos.. Este es el acabado laminado en frío de uso general que se puede utilizar, o un paso previo al pulido. | |||||
| Rango | 914 (3′) | 1000 | 1219 (4′) | 1250 | 1500 | 1524 (5′) |
| 0.3milímetros ~ 3,0 mm | ◇ | ◆ | ◆ | ◆ | ◆ | ◆ |
| 30Ga ~ 11s | ◇ | ◆ | ◆ | ◆ | ◆ | ◆ |
| 0.012″ ~ 0,1196″ | ◇ | ◆ | ◆ | ◆ | ◆ | ◆ |
