Sandvik 3R60™ Urea Grade

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

Description

Sandvik 3R60™ Urea Grade is a high-purity variant of ASTM 316L, specially developed for the urea industry. The grade has a guaranteed maximum ferrite content of 0.6%. Sandvik 3R60™ Urea Grade is characterized by:


  • High resistance to corrosion in ammonium carbamate
  • High resistance to intergranular corrosion
  • Good weldability

  • Datasheet URL:

    Sandvik 3R60™ Urea Grade


    Datasheet updated 2019-08-26 09:12 (supersedes all previous editions)

    Related Standards

    Equivalent Materials

    This material data has been provided by Sandvik Materials Technology.

    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

    PropertyValueTemperature

    Density

    8 g/cm³

    Show Supplier Material materials with Density of 8 g/cm³ at 23.0 °C

    23.0 °C

    Mechanical

    PropertyValueTemperatureComment

    Charpy impact energy, V-notch

    150 J

    Show Supplier Material materials with Charpy impact energy, V-notch of 150 J at -60.0 °C

    -60.0 °C

    Elastic modulus

    200 GPa

    Show Supplier Material materials with Elastic modulus of 200 GPa at 20.0 °C

    20.0 °C

    194 GPa

    Show Supplier Material materials with Elastic modulus of 194 GPa at 100.0 °C

    100.0 °C

    186 GPa

    Show Supplier Material materials with Elastic modulus of 186 GPa at 200.0 °C

    200.0 °C

    179 GPa

    Show Supplier Material materials with Elastic modulus of 179 GPa at 300.0 °C

    300.0 °C

    172 GPa

    Show Supplier Material materials with Elastic modulus of 172 GPa at 400.0 °C

    400.0 °C

    165 GPa

    Show Supplier Material materials with Elastic modulus of 165 GPa at 500.0 °C

    500.0 °C

    Elongation

    40 %

    Show Supplier Material materials with Elongation of 40 % at 23.0 °C

    23.0 °C

    min.

    Elongation A2

    35 %

    Show Supplier Material materials with Elongation A2 of 35 % at 23.0 °C

    23.0 °C

    min.

    Hardness, Rockwell B

    90 [-]

    Show Supplier Material materials with Hardness, Rockwell B of 90 [-] at 23.0 °C

    23.0 °C

    max.

    Tensile strength

    490 MPa

    Show Supplier Material materials with Tensile strength of 490 MPa at 20.0 °C

    20.0 °C

    690 MPa

    Show Supplier Material materials with Tensile strength of 690 MPa at 23.0 °C

    23.0 °C

    470 MPa

    Show Supplier Material materials with Tensile strength of 470 MPa at 50.0 °C

    50.0 °C

    450 MPa

    Show Supplier Material materials with Tensile strength of 450 MPa at 100.0 °C

    100.0 °C

    430 MPa

    Show Supplier Material materials with Tensile strength of 430 MPa at 150.0 °C

    150.0 °C

    415 MPa

    Show Supplier Material materials with Tensile strength of 415 MPa at 200.0 °C

    200.0 °C

    410 MPa

    Show Supplier Material materials with Tensile strength of 410 MPa at 250.0 °C

    250.0 °C

    400 MPa

    Show Supplier Material materials with Tensile strength of 400 MPa at 300.0 °C

    300.0 °C

    395 MPa

    Show Supplier Material materials with Tensile strength of 395 MPa at 350.0 °C

    350.0 °C

    390 MPa

    Show Supplier Material materials with Tensile strength of 390 MPa at 400.0 °C

    400.0 °C

    Unlock all property charts

    Yield strength Rp0.1

    235 MPa

    Show Supplier Material materials with Yield strength Rp0.1 of 235 MPa at 20.0 °C

    20.0 °C

    min.

    225 MPa

    Show Supplier Material materials with Yield strength Rp0.1 of 225 MPa at 50.0 °C

    50.0 °C

    min.

    200 MPa

    Show Supplier Material materials with Yield strength Rp0.1 of 200 MPa at 100.0 °C

    100.0 °C

    min.

    180 MPa

    Show Supplier Material materials with Yield strength Rp0.1 of 180 MPa at 150.0 °C

    150.0 °C

    min.

    165 MPa

    Show Supplier Material materials with Yield strength Rp0.1 of 165 MPa at 200.0 °C

    200.0 °C

    min.

    155 MPa

    Show Supplier Material materials with Yield strength Rp0.1 of 155 MPa at 250.0 °C

    250.0 °C

    min.

    145 MPa

    Show Supplier Material materials with Yield strength Rp0.1 of 145 MPa at 300.0 °C

    300.0 °C

    min.

    140 MPa

    Show Supplier Material materials with Yield strength Rp0.1 of 140 MPa at 350.0 °C

    350.0 °C

    min.

    135 MPa

    Show Supplier Material materials with Yield strength Rp0.1 of 135 MPa at 400.0 °C

    400.0 °C

    min.

    145 MPa

    Show Supplier Material materials with Yield strength Rp0.1 of 145 MPa at 450.0 °C

    450.0 °C

    min.

    140 MPa

    Show Supplier Material materials with Yield strength Rp0.1 of 140 MPa at 500.0 °C

    500.0 °C

    min.

    140 MPa

    Show Supplier Material materials with Yield strength Rp0.1 of 140 MPa at 550.0 °C

    550.0 °C

    min.

    120 MPa

    Show Supplier Material materials with Yield strength Rp0.1 of 120 MPa at 600.0 °C

    600.0 °C

    min.

    Unlock all property charts

    Yield strength Rp0.2

    190 MPa

    Show Supplier Material materials with Yield strength Rp0.2 of 190 MPa at 20.0 °C

    20.0 °C

    min.

    180 MPa

    Show Supplier Material materials with Yield strength Rp0.2 of 180 MPa at 50.0 °C

    50.0 °C

    min.

    165 MPa

    Show Supplier Material materials with Yield strength Rp0.2 of 165 MPa at 100.0 °C

    100.0 °C

    min.

    150 MPa

    Show Supplier Material materials with Yield strength Rp0.2 of 150 MPa at 150.0 °C

    150.0 °C

    min.

    140 MPa

    Show Supplier Material materials with Yield strength Rp0.2 of 140 MPa at 200.0 °C

    200.0 °C

    min.

    130 MPa

    Show Supplier Material materials with Yield strength Rp0.2 of 130 MPa at 250.0 °C

    250.0 °C

    min.

    120 MPa

    Show Supplier Material materials with Yield strength Rp0.2 of 120 MPa at 300.0 °C

    300.0 °C

    min.

    115 MPa

    Show Supplier Material materials with Yield strength Rp0.2 of 115 MPa at 350.0 °C

    350.0 °C

    min.

    110 MPa

    Show Supplier Material materials with Yield strength Rp0.2 of 110 MPa at 400.0 °C

    400.0 °C

    min.

    115 MPa

    Show Supplier Material materials with Yield strength Rp0.2 of 115 MPa at 450.0 °C

    450.0 °C

    min.

    110 MPa

    Show Supplier Material materials with Yield strength Rp0.2 of 110 MPa at 500.0 °C

    500.0 °C

    min.

    110 MPa

    Show Supplier Material materials with Yield strength Rp0.2 of 110 MPa at 550.0 °C

    550.0 °C

    min.

    95 MPa

    Show Supplier Material materials with Yield strength Rp0.2 of 95 MPa at 600.0 °C

    600.0 °C

    min.

    Unlock all property charts

    Thermal

    PropertyValueTemperatureComment

    Coefficient of thermal expansion

    1.65E-5 1/K

    Show Supplier Material materials with Coefficient of thermal expansion of 1.65E-5 1/K at 100.0 °C

    100.0 °C

    for 30°C to the mentioned temperature

    1.7E-5 1/K

    Show Supplier Material materials with Coefficient of thermal expansion of 1.7E-5 1/K at 200.0 °C

    200.0 °C

    for 30°C to the mentioned temperature

    1.75E-5 1/K

    Show Supplier Material materials with Coefficient of thermal expansion of 1.75E-5 1/K at 300.0 °C

    300.0 °C

    for 30°C to the mentioned temperature

    1.8E-5 1/K

    Show Supplier Material materials with Coefficient of thermal expansion of 1.8E-5 1/K at 400.0 °C

    400.0 °C

    for 30°C to the mentioned temperature

    1.8E-5 1/K

    Show Supplier Material materials with Coefficient of thermal expansion of 1.8E-5 1/K at 500.0 °C

    500.0 °C

    for 30°C to the mentioned temperature

    1.85E-5 1/K

    Show Supplier Material materials with Coefficient of thermal expansion of 1.85E-5 1/K at 600.0 °C

    600.0 °C

    for 30°C to the mentioned temperature

    1.85E-5 1/K

    Show Supplier Material materials with Coefficient of thermal expansion of 1.85E-5 1/K at 700.0 °C

    700.0 °C

    for 30°C to the mentioned temperature

    Unlock all property charts

    Specific heat capacity

    485 J/(kg·K)

    Show Supplier Material materials with Specific heat capacity of 485 J/(kg·K) at 20.0 °C

    20.0 °C

    500 J/(kg·K)

    Show Supplier Material materials with Specific heat capacity of 500 J/(kg·K) at 100.0 °C

    100.0 °C

    515 J/(kg·K)

    Show Supplier Material materials with Specific heat capacity of 515 J/(kg·K) at 200.0 °C

    200.0 °C

    525 J/(kg·K)

    Show Supplier Material materials with Specific heat capacity of 525 J/(kg·K) at 300.0 °C

    300.0 °C

    540 J/(kg·K)

    Show Supplier Material materials with Specific heat capacity of 540 J/(kg·K) at 400.0 °C

    400.0 °C

    555 J/(kg·K)

    Show Supplier Material materials with Specific heat capacity of 555 J/(kg·K) at 500.0 °C

    500.0 °C

    575 J/(kg·K)

    Show Supplier Material materials with Specific heat capacity of 575 J/(kg·K) at 600.0 °C

    600.0 °C

    Unlock all property charts

    Thermal conductivity

    14 W/(m·K)

    Show Supplier Material materials with Thermal conductivity of 14 W/(m·K) at 20.0 °C

    20.0 °C

    15 W/(m·K)

    Show Supplier Material materials with Thermal conductivity of 15 W/(m·K) at 100.0 °C

    100.0 °C

    17 W/(m·K)

    Show Supplier Material materials with Thermal conductivity of 17 W/(m·K) at 200.0 °C

    200.0 °C

    18 W/(m·K)

    Show Supplier Material materials with Thermal conductivity of 18 W/(m·K) at 300.0 °C

    300.0 °C

    20 W/(m·K)

    Show Supplier Material materials with Thermal conductivity of 20 W/(m·K) at 400.0 °C

    400.0 °C

    21 W/(m·K)

    Show Supplier Material materials with Thermal conductivity of 21 W/(m·K) at 500.0 °C

    500.0 °C

    23 W/(m·K)

    Show Supplier Material materials with Thermal conductivity of 23 W/(m·K) at 600.0 °C

    600.0 °C

    Unlock all property charts

    Chemical properties

    Property

    Carbon

    0.02 %

    max.

    Chromium

    17.5 %

    Iron

    Balance

    Manganese

    1.7 %

    Molybdenum

    2.6 %

    Nickel

    14 %

    Phosphorus

    0.02 %

    max.

    Silicon

    0.4 %

    Sulfur

    0.01 %

    max.

    Technological properties

    Property
    Application areas

    Typical urea plant applications of Sandvik 3R60™ Urea Grade are:

  • Carbamate condensers
  • Scrubbers
  • Decomposers
  • High pressure piping
  • Cold Forming

    Annealing after cold bending is not normally necessary, but the decision must be made after taking account of degree of bending and the operating conditions. Heat treatment, if any, should take the form of solution annealing, see under "Heat treatment".

    Compliance

    Urea specifications issued by: Stamicarbon, Snamprogetti, Urea Casale and Kellogg

    Corrosion properties

    The low ferrite and impurity contents of Sandvik 3R60 Urea Grade make it highly resistant to general and intergranular corrosion in the process solutions occurring in the manufacture of urea.


    Sandvik 3R60 Urea Grade easily meets the Huey test and selective attack requirements specified by Stamicarbon, Snamprogetti and Urea Casale. The general corrosion rate is normally set at 0.6 mm/year maximum for unsensitized material (24mpy, 3.3um/48h).

    Heat Treatment

    Tubes are delivered in the heat treated condition. If additional heat treatment is needed after further processing the following is recommended.

    Solution annealing: 1050-1100°C (1920-2010°F), 5-20 minutes, rapid cooling in water.

    Hot forming

    Hot bending is carried out at 1100–850°C (2010–1560°F) and should be followed by solution annealing.

    Machining

    The mechanical machining of stainless steels always requires an adjustment to cutting to data and machining method to give satisfactory results. When turning is undertaken with carbide tipped tools, the cutting speed should be reduced by 30% for finish machining and 60% for rough machining, compared with the cutting speeds applied for AISI 316. Much the same applies to other operations. If high speed steel tools are used, approximately the same cutting speed can be used as for AISI 316.


    Detailed recommendations for the choice of tools and cutting data are provided in brochure S-1,462-ENG. Select data as for grade 5R60 (AISI 316), taking into account the above comments.

    Other

    Forms of supply:

    Seamless tube and pipe in 3R65 is supplied in dimensions up to 260 mm outside diameter in the solution annealed and white-pickled condition or in the bright-annealed condition.


    We can also deliver other product forms from stock in a grade corresponding to 3R60 U.G mainly:

  • U-tubes can be supplied on request.
  • Urea high pressure pipe fittings and flanges

  • Filler metals for welding: The sizes listed below are Sandvik stock standard. Local market stocks comprise sizes in common demand. Fortechnical information on the filler metal please refer to brochures S-2361-ENG, S-2362-ENG and S-2366-ENG.

    Welding

    The weldability of Sandvik 3R60 Urea grade is good. Welding must be carried out without preheating and subsequent heat treatment is normally not required. Suitable methods of fusion welding are manual metal-arc welding (MMA/SMAW) and gas-shielded arc welding, with the TIG/GTAW method as first choice.


    For Sandvik 3R60 Urea grade, heat input of <1.5 kJ/mm and interpass temperature of <100°C (210°F) are recommended.


    Recommended filler metals:

    • TIG/GTAW or MIG/GMAW welding
      • ISO 14343 S 25 22 2 N L (e.g. Exaton 25.22.2.LMn)
    • MMA/SMAW welding
      • ISO 3581 E 25 22 2 N L B (e.g. Exaton 25.22.2.LMnB)