UGIMA® 4005 QT650 drawn

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

Description

UGIMA® 4005 is a martensitic stainless steel containing 12 to 14% chromium with a machinability improvement of 15 to 30% thanks to the UGIMA® process which enables its oxide inclusions to be controlled.


UGIMA® 4005 keeps its other properties as standard UGI 4005 (cold working, weldability, corrosion resistance, ...)


UGIMA® 4005 is delivered preferentially in the QT650 treated condition in order to optimise its machinability. Therefore, its microstructure is a tempered martensite with numerous sulphides, elongated in the direction of the hot rolling.

Related Standards

Equivalent Materials

This material data has been provided by Ugitech SA.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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.

Properties

General

PropertyValue

Density

7.7 g/cm³

Show Supplier Material materials with Density of 7.7 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

20 °C

215 GPa

Show Supplier Material materials with Elastic modulus of 215 GPa

100 °C

212 GPa

Show Supplier Material materials with Elastic modulus of 212 GPa

200 °C

205 GPa

Show Supplier Material materials with Elastic modulus of 205 GPa

300 °C

200 GPa

Show Supplier Material materials with Elastic modulus of 200 GPa

400 °C

190 GPa

Show Supplier Material materials with Elastic modulus of 190 GPa

Elongation

8 %

Show Supplier Material materials with Elongation of 8 %

min., depending on the size

Hardness, Brinell

280.0

Show Supplier Material materials with Hardness, Brinell of 280.0

max., depending on the size

Tensile strength

650.0 - 1000.0 MPa

Show Supplier Material materials with Tensile strength of 650.0 - 1000.0 MPa

depending on the size

Thermal

PropertyValueComment

Coefficient of thermal expansion

0.0000105 1/K

Show Supplier Material materials with Coefficient of thermal expansion of 0.0000105 1/K

20 to 100°C

0.000011 1/K

Show Supplier Material materials with Coefficient of thermal expansion of 0.000011 1/K

20 to 200°C

0.0000115 1/K

Show Supplier Material materials with Coefficient of thermal expansion of 0.0000115 1/K

20 to 300°C

0.000012 1/K

Show Supplier Material materials with Coefficient of thermal expansion of 0.000012 1/K

20 to 400°C

Specific heat capacity

460 J/(kg·K)

Show Supplier Material materials with Specific heat capacity of 460 J/(kg·K)

Thermal conductivity

30 W/(m·K)

Show Supplier Material materials with Thermal conductivity of 30 W/(m·K)

Electrical

PropertyValue

Electrical resistivity

0.0000006 Ω·m

Show Supplier Material materials with Electrical resistivity of 0.0000006 Ω·m

Chemical properties

PropertyValueComment

Carbon

0.06 - 0.15 %

Show Supplier Material materials with Carbon of 0.06 - 0.15 %

Chromium

12.0 - 14.0 %

Show Supplier Material materials with Chromium of 12.0 - 14.0 %

Manganese

1.5

Show Supplier Material materials with Manganese of 1.5

max.

Molybdenum

0.06

Show Supplier Material materials with Molybdenum of 0.06

max.

Phosphorus

0.04

Show Supplier Material materials with Phosphorus of 0.04

max.

Silicon

1.0

Show Supplier Material materials with Silicon of 1.0

max.

Sulfur

0.15 - 0.35000000000000003 %

Show Supplier Material materials with Sulfur of 0.15 - 0.35000000000000003 %

Technological properties

Property
Application areas

Grade used in numerous applications where high machinability is necessary (i.e. for screw machining of very high number of parts), and when corrosion resistance is not a critical deciding factor.

  • Process industry : connectors, fixing
  • Automotive industry : injectors

    This grade can also be used for its magnetic properties in its annealed condition (solenoid valves).

  • Corrosion properties

    Corrosion resistance properties of UGIMA® 4005 are globally the same as those of a standard UGI 4005. Therefore, storage in an area with low humidity is to be preferred.

    Pitting corrosion: The following figure shows the pitting potential expressed in mV/SCE; it is measured in a saline environment with a pH of 6.6 at 23°C and a sodium chloride concentration of 0.002M (116 mg/l, i.e. 0.01%). This kind of measurement on resulphurised low chromium stainless steel is always highly dispersed and UGIMA® 4005 shows, in this test, dispersion slightly over that of a standard UGI 4005.

    General machinability

    Thanks to its controlled oxide inclusions, UGIMA® 4005 presents an excellent machinability, significantly over that of a standard 1.4005 like UGI 4005. For identical cutting conditions, UGIMA® 4005 allows tool wear rates far below that of observed when cutting a standard 1.4005.

    It allows significant productivity increases without decreasing the tool life duration. As examples, the following table shows for two different cutting tools the VB15/0.15 * measured in turning on UGIMA® 4005 and UGI 4005 hot rolled bars comparatively.


    VB15/0,15 in turning (without lubricant)
    Grade
    SECO TM2000
    CNMG 120408-MF4
    SUMITOMO AC610M
    CNMG 120408-GU
    UGI 4005340 m/min380 m/min
    UGIMA® 4005≥ 490 m/min≥ 510 m/min

    Heat Treatment

    Annealing: To lower the mechanical properties of UGIMA® 4005, make a heat treatment of several hours between 745 and 825°C followed by a slow air cooling.


    Quenching: To quench UGIMA® 4005, make a heat treatment between 950°C and 1000°C followed by air or oil cooling.


    Tempering: The choice for the tempering temperature depends on the mechanical properties needed (see the graph hereunder). It is better to avoid temperatures between 400 and 550°C which induce a toughness decrease.


    Hot forming

    Forging: UGIMA® 4005 can be forged but it is not suited to severe upsetting operations. The following forging conditions are recommended:

  • Heating temperature between 1150°C and 1220°C
  • Forging temperature between 950°C and 1220°C
  • Slow cooling rate after forging (furnace or vermiculite)

  • Other

    Available products:


    ProductShapeFinishingToleranceDimensions (mm)
    Bars
    RoundHot rolled – Descaled barsk13
    22-77 (every mm)
    80-115 (every 5 mm)
    Cold finished – turnedh11 - h1022-115
    Cold finished – turned & polishedh11 - h10
    h9
    22-115
    22-55
    Ground barsh9 - h8 - h722-115
    Cold finished – drawnh95-30
    HexagoneCold finished - drawnh113-55


    Other finishes, tolerances, sizes, profiles on request

    Surface Treatment

    The possible surface treatments are the same as those used for a standard 1.4005 such as UGI4005.

    Welding

    As a standard 1.4005 like UGI 4005, UGIMA® 4005 is weldable by most arc welding processes (GMAW, GTAW with or without filler wire, SMAW, SAW, ...), by laser, resistance welding (spot or seam welding), friction or electron beam welding processes, ...


    Thanks to a “as welded” martensitic structure in Welded metal (WM) as well as in Heat Affected Zone (HAZ) [if welding without filler wire], UGIMA® 4005, as well as a standard 1.4005, is not subject to intergranular corrosion phenomenon due to chromium carbide precipitation and grain boundary déchromisation.


    In GMAW and GTAW, the protection gas must be without nitrogen, nor hydrogen, in order to avoid an increasing risk of hydrogen embrittlement typical of martensitic grades. For the same reason, in SMAW, the electrodes must be oven-dried (in order to eliminate the residual water present in the coating of electrodes, which can increase the hydrogen content in the weld).


    Because of its quite low carbon content, UGIMA® 4005 can be arc welded without pre-heating of parts to be welded. However, a tempering treatment between 200 and 300°C is needed most of the time to improve the toughness of the HAZ (and that of WM in case of welding without filler wire or with a homogeneous filler wire). With a homogeneous filler wire, heat treatments between 300 and 550°C are prohibited in order to avoid a fine carbide precipitation inducing embrittlement of the HAZ and WM.


    In case of austenitic filler wire (309L, 308L, ...), a heat treatment between 200 and 300°C can also be used to improve the HAZ toughness. Heat treatments at higher temperature are prohibited in order to avoid risks of C migration from HAZ into the WM, which could induce corrosion resistance decrease of the WM.