incoloy 825 bar

Incoloy 825 (UNS N08825 / W.-Nr. 2.4858) es una aleacion de niquel-hierro-cromo estabilizada con titanio y reforzada con molibdeno y cobre. Disenada para resistir acidos sulfurico y fosforico, cloruros y agua de mar, mantiene su integridad estructural desde temperaturas criogenicas hasta 550 C. Su aplicacion abarca procesamiento quimico, petroleo y gas, control de contaminacion, ingenieria marina y energia nuclear. SHUNFU METAL la suministra con certificaciones ISO 9001 y API Q1, respaldada por un inventario de 8,000 toneladas de aleaciones especiales y control de calidad integral en cada lote.

Incoloy 825 — Vision General

La adicion controlada de titanio previene la corrosion intergranular tras exposicion a temperaturas de sensibilizacion, mientras que el cobre proporciona resistencia adicional a acidos reductores. Esta combinacion posiciona al Incoloy 825 como material de referencia donde se requiere simultaneamente alta resistencia mecanica y proteccion anticorrosiva en ambientes agresivos. Los procesos internos de SHUNFU METAL —desde la seleccion de materia prima hasta el embalaje final— estan gobernados por estandares de calidad certificados que garantizan la conformidad dimensional, quimica y mecanica de cada producto despachado. A diferencia de los aceros inoxidables 316 que fallan por disolucion uniforme en acido sulfurico, el Incoloy 825 ofrece una vida util sustancialmente mayor gracias al efecto sinergico del molibdeno (2,5–3,5 %) y el cobre (1,5–3,0 %) en su matriz de niquel.

Grados Equivalentes de Incoloy 825

Norma Designacion
UNS N08825
ASTM / ASME N08825 (B423 / SB-423)
AMS 5542 / 5585
EN / DIN NiCr21Mo (W.-Nr. 2.4858)
ISO NiFe30Cr21Mo
GB/T (China) NS1402 / NS142 / GH825
JIS NCF 825

SHUNFU METAL suministra Incoloy 825 conforme a las normas ASTM B423, ASTM B425, ASME SB-423 y EN 10216-5, con certificados de ensayo EN 10204 3.1. Cada lote es verificado contra la especificacion solicitada por el cliente mediante ensayos internos acreditados bajo ISO 9001 y API Q1.

Barra de Incoloy 825
Barra de Incoloy 825 — SHUNFU METAL

Aplicaciones Industriales

Procesamiento Quimico

Intercambiadores de calor tubulares y de placas para acido sulfurico y fosforico; tanques de almacenamiento; reactores; columnas de destilacion; evaporadores; tuberias para medios corrosivos a temperaturas elevadas; equipos de decapado de acero.

Petroleo y Gas

Tuberias de fondo de pozo (downhole tubing) en pozos con altos contenidos de H2S y CO2; lineas de inyeccion quimica; separadores gas-liquido; componentes de cabezales de pozo; sistemas de control submarino; adaptadores y colgadores de revestimiento.

Control de Contaminacion

Absorbedores y depuradores en plantas FGD de desulfuracion de gases de combustion; conductos de gases acidos; intercambiadores de calor en torres de lavado; sistemas de ventilacion de tanques; componentes para incineradores de residuos.

Industria Marina

Componentes expuestos a agua de mar: ejes de bombas, impulsores, valvulas y cuerpos de valvula; sistemas de lastre; intercambiadores de calor con refrigeracion por agua marina; tuberias de circuitos de refrigeracion en plataformas offshore.

Energia Nuclear

Tanques de reprocesamiento de combustible nuclear gastado; componentes para contencion de residuos radiactivos; sistemas de manejo de materiales; intercambiadores de calor en circuitos de refrigeracion de reactores.

Procesamiento de Alimentos

Equipos en contacto con acidos organicos (acido citrico, lactico y acetico); tanques de fermentacion; pasteurizadores; sistemas de limpieza CIP; componentes de transporte en plantas de bebidas y productos lacteos.

Dimensiones de Suministro — Incoloy 825

SHUNFU METAL suministra Incoloy 825 en los siguientes formatos y rangos dimensionales, cubriendo necesidades de mecanizado general y aplicaciones de gran seccion. Cada producto se entrega con certificados de ensayo conforme a EN 10204 3.1. Los procesos de control de calidad —certificados bajo ISO 9001 y API Q1— abarcan desde la verificacion de materia prima y el seguimiento de laminacion o forja hasta la inspeccion dimensional final, garantizando trazabilidad completa desde la colada de origen hasta el despacho.

Formato Rango Dimensional
Redondo Laminado φ5 mm – φ200 mm
Plano Laminado Espesor 3 mm – 100 mm, Ancho hasta 2,000 mm
Redondo Forjado φ100 mm – φ800 mm
Plano Forjado Espesor 50 mm – 500 mm, Ancho hasta 2,500 mm

Los diametros de redondo forjado superiores a φ500 mm y los espesores de plano forjado por encima de 300 mm se suministran bajo consulta tecnica previa. SHUNFU METAL aplica controles no destructivos por ultrasonido segun ASTM A388 bajo solicitud.

Composicion Quimica segun ASTM B423

Elemento % Peso
Niquel (Ni) 38.0 – 46.0
Cromo (Cr) 19.5 – 23.5
Hierro (Fe) ≥ 22.0 (Resto)
Molibdeno (Mo) 2.5 – 3.5
Cobre (Cu) 1.5 – 3.0
Titanio (Ti) 0.6 – 1.2
Carbono (C) ≤ 0.05
Manganeso (Mn) ≤ 1.00
Silicio (Si) ≤ 0.50
Azufre (S) ≤ 0.030
Aluminio (Al) ≤ 0.20

SHUNFU METAL verifica la composicion de cada colada mediante espectrometria de emision optica (OES), asegurando el cumplimiento estricto de los limites de la norma. Los certificados de analisis quimico emitidos permiten a los clientes validar la conformidad del material antes de su transformacion, eliminando riesgos de no conformidad en procesos posteriores.

Propiedades Mecanicas — Estado Recocido

Valores correspondientes a la condicion de suministro estandar (recocido, trabajado en frio) segun ASTM B423. SHUNFU METAL realiza ensayos de traccion y dureza en cada lote de produccion bajo condiciones controladas de laboratorio interno, verificando que todos los parametros superen los minimos normativos.

Propiedad Valor
Resistencia a la Traccion (Rm) ≥ 586 MPa (85 ksi)
Limite Elastico (Rp0.2) ≥ 241 MPa (35 ksi)
Alargamiento (A%) ≥ 30%
Dureza Brinell (HB) ≤ 200
Dureza Rockwell B (HRB) ≤ 90

Los certificados de calidad documentan la conformidad con los requisitos de ISO 9001 y API Q1. Bajo solicitud, SHUNFU METAL puede realizar ensayos adicionales: impacto Charpy, corrosion intergranular segun ASTM A262 Practica C, dureza en perfil transversal y control por ultrasonido. La densidad del material es 8.14 g/cm³ y su punto de fusion se situa entre 1,370 C y 1,400 C.

 

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