UGIMA® 4460 Cold Finished and Drawn

Want to keep this datasheet? Save it now in your required format

Description

UGIMA® 4460 is an improved machinability stainless steel manufactured only by UGITECH.


Its properties are identical to those of 1.4460, except for its machinability, which is quite exceptional.

  • UGIMA® 4460 brings a technological advance that provides significant advantages, whatever the machining conditions, the machine or the tooling used.
  • Productivity increases of 10% to 30% have been obtained over grade 1.4460, the current market standard

  • Mechanical properties measured for cold-finished product produced from a range of hot-rolled steels (not drawn)


    We must first remember that the use of austeno-ferritic grades above 300°C is not recommended, owing to the formation of embrittling phases that reduce resilience and affect the corrosion resistance properties (alpha', chi, and sigma phases at higher temperatures).


    The DUPLEX or AUSTENO-FERRITIC grades are, as their names imply, partly austenitic (non-magnetic) and partly ferritic (ferromagnetic) phases.

    Los datos sobre este material han sido proporcionados por Ugitech SA.

    A menos que se indique lo contrario, todas las medidas corresponden a condiciones de temperatura ambiente. A menos que se indique lo contrario, se utilizan las unidades del SI.
    Las normas armonizadas son similares a uno o varios estándares del proveedor. Es posible que algunas normas armonizadas se ajusten al estándar original, mientras que otras pueden quedar fuera de su alcance.

    Ashby charts

    See where falls on the material property chart for against in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.

    Propiedades

    General

    PropertyValue

    Densidad

    7.8 g/cm³

    Show Supplier Material materials with Densidad of 7.8 g/cm³

    Mecánica

    PropertyTemperatureValue

    Charpy impact energy, V-notch

    60.0 - 120.0 J

    Show Supplier Material materials with Charpy impact energy, V-notch of 60.0 - 120.0 J

    Coeficiente de Poisson

    0.30000000000000004 [-]

    Show Supplier Material materials with Coeficiente de Poisson of 0.30000000000000004 [-]

    Elongación

    20 %

    Show Supplier Material materials with Elongación of 20 %

    Estricción

    64.0 %

    Show Supplier Material materials with Estricción of 64.0 %

    Módulo elástico

    20 °C

    200 GPa

    Show Supplier Material materials with Módulo elástico of 200 GPa

    100 °C

    194 GPa

    Show Supplier Material materials with Módulo elástico of 194 GPa

    200 °C

    186 GPa

    Show Supplier Material materials with Módulo elástico of 186 GPa

    300 °C

    180 GPa

    Show Supplier Material materials with Módulo elástico of 180 GPa

    Resistencia a la tracción

    920 MPa

    Show Supplier Material materials with Resistencia a la tracción of 920 MPa

    Aplicaciones térmicas

    PropertyValueComment

    Calor específico

    500 J/(kg·K)

    Show Supplier Material materials with Calor específico of 500 J/(kg·K)

    Coeficiente de dilatación térmica

    0.000013 1/K

    Show Supplier Material materials with Coeficiente de dilatación térmica of 0.000013 1/K

    20 to 100°C

    0.0000135 1/K

    Show Supplier Material materials with Coeficiente de dilatación térmica of 0.0000135 1/K

    20 to 200°C

    0.000014 1/K

    Show Supplier Material materials with Coeficiente de dilatación térmica of 0.000014 1/K

    20 to 300°C

    Conductividad térmica

    16 W/(m·K)

    Show Supplier Material materials with Conductividad térmica of 16 W/(m·K)

    Eléctrico

    PropertyValue

    Resistividad eléctrica

    8e-07 Ω·m

    Show Supplier Material materials with Resistividad eléctrica of 8e-07 Ω·m

    Magnético

    PropertyValueComment

    Fuerza coercitiva

    680.0 A/m

    Show Supplier Material materials with Fuerza coercitiva of 680.0 A/m

    Permeabilidad magnética relativa

    100 [-]

    Show Supplier Material materials with Permeabilidad magnética relativa of 100 [-]

    max.

    Chemical properties

    PropertyValueComment

    Azufre

    0.02 - 0.03 %

    Show Supplier Material materials with Azufre of 0.02 - 0.03 %

    Carbono

    0.03

    Show Supplier Material materials with Carbono of 0.03

    max.

    Cromo

    26.0 - 27.0 %

    Show Supplier Material materials with Cromo of 26.0 - 27.0 %

    Fósforo

    0.035

    Show Supplier Material materials with Fósforo of 0.035

    max.

    Manganeso

    1.0

    Show Supplier Material materials with Manganeso of 1.0

    max.

    Molibdeno

    1.3 - 1.8 %

    Show Supplier Material materials with Molibdeno of 1.3 - 1.8 %

    Nitrógeno

    0.05 - 0.2 %

    Show Supplier Material materials with Nitrógeno of 0.05 - 0.2 %

    Níquel

    4.5 - 5.0 %

    Show Supplier Material materials with Níquel of 4.5 - 5.0 %

    Silicona

    0.75

    Show Supplier Material materials with Silicona of 0.75

    max.

    Technological properties

    Property
    Application areas

  • Chemical industry
  • Engineering
  • Oil and petrochemical industry
  • Water sports
  • Arms
  • Construction

  • Corrosion properties

    The corrosion resistance properties of Ugima® 4460 in phosphoric and chloride environments are excellent. They are considerably higher than those of 316 steel in environments liable to cause pitting and crevice or stress corrosion. The table below shows an example of a scale of performance in different manufacturing environments:


    EnvironmentPerformance
    Nitric acidGOOD
    Phosphoric acidGOOD
    Sulphuric acidMODERATE
    Acetic acidGOOD
    Sodium carbonateGOOD
    NaCl (Saline mist)EXCELLENT
    HumidityEXCELLENT
    Sea waterGOOD
    Oil/gasGOOD

    General machinability

    The two-phase structure of these steels, each phase of which performs differently during machining, makes them more difficult to machine than austenitic stainless steels. They put a great strain on the tools (risk of vibrations, coating chipping) if they are not machined under optimum cutting conditions and if the tools used are not of the correct quality. Unlike austenitic stainless steels, they require the use of coated carbine inserts and low cutting speeds.


    The performance of UGIMA® 4460 in machining is exceptionally good as a result of the optimisation of the inclusion population.

    Heat Treatment

    1.4460 steel is used in annealed condition at 1030/1100°C and is OIL or WATER cooled. The heat treatment allows users to:

  • balance the phases when (ferrite + austenite) are used,
  • eliminate undesirable embrittlement phases such as the Sigma phase which would affect the resilience as well as the corrosion resistance properties of the steel.

  • Hot forming

    The forgeability of Ugima® 4460 is not as good as that of the current 1.4307/1.4404 austenitic steels. A few practical rules:

  • Preheating: preheating is not necessary, except perhaps for large components and only for homogenisation purposes (T° > 900°C)
  • Forging: steels are forged at a temperature of between 1200 and 900°C, but the best results are obtained at between 1200 and 1100°C (more ferritic tendency and greater metal malleability at high temperature)
  • Cooling: rapid water or oil-cooling is recommended, to avoid the formation of embrittling phases, particularly the sigma phase at a temperature of between 900 and 600°C.

  • Other

    Available products:


    ProductTolerance
    Hot rolled descaled bar13
    Cold finished drawn, turned, ground bars6-11


    Contact the supplier for any not listed.

    Welding

    The percentage of ferrite in the molten areas of Ugima® 4460 is higher when the composition of the filler metal is identical to that of the base metal. This should be taken into account when the optimum composition of the filler metal is determined. In addition, the areas affected by the heat are also liable to contain more ferrite than the base metal. To minimize this difference, linear energy welding is recommended to reduce cooling times. However, only energy that does not cause phase formation should be used. There is also a linear energy welding area where the two above-mentioned risks are lower. The thicker the components to be welded, the higher the energy in this area (i.e. rapid weld cooling).

    It is not advisable to preheat components prior to welding.

    Components should not be heat treated after welding, but the annealing treatment described in the "Heat treatment" section may be carried out, if necessary.

    In the case of an MIG weld, Ni-based fillers such as those made of Ni 6660 could be used to ensure ductility and corrosion resistance in the molten area.