Sandvik 5R10

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Description

Sandvik 5R10 is an austenitic chromium-nickel steel with a controlled carbon content in order to obtain improved strength at high temperatures.


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Sandvik 5R10


Datasheet updated 2019-08-28 09:43 (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.

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Properties

General

PropertyTemperatureValueComment

Density

23.0 °C

7.9 g/cm³

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Recycled Content

82.1 %

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Average recycled content

Mechanical

PropertyTemperatureValueComment

Charpy impact energy

-196.0 °C

60 J

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EN 13445-2 (UFPV-2) and EN 10216-5

Creep strength 10^4 cycles

550.0 °C

195 MPa

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ISO values, at 10000h

575.0 °C

147 MPa

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ISO values, at 10000h

600.0 °C

122 MPa

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ISO values, at 10000h

625.0 °C

100 MPa

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ISO values, at 10000h

650.0 °C

79 MPa

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ISO values, at 10000h

675.0 °C

64 MPa

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ISO values, at 10000h

700.0 °C

48 MPa

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ISO values, at 10000h

Creep strength 10^5 cycles

550.0 °C

115 MPa

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ISO values, at 100000h

575.0 °C

93 MPa

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ISO values, at 100000h

600.0 °C

74 MPa

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ISO values, at 100000h

625.0 °C

58 MPa

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ISO values, at 100000h

650.0 °C

45 MPa

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ISO values, at 100000h

675.0 °C

33 MPa

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ISO values, at 100000h

700.0 °C

23 MPa

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ISO values, at 100000h

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Elastic modulus

20.0 °C

200 GPa

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100.0 °C

194 GPa

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200.0 °C

186 GPa

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300.0 °C

179 GPa

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400.0 °C

172 GPa

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500.0 °C

165 GPa

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Elongation

23.0 °C

45 %

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min.

Elongation A2

23.0 °C

35 %

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min.

Hardness, Vickers

23.0 °C

155 [-]

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Tensile strength

23.0 °C

515 - 690 MPa

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Yield strength Rp0.1

20.0 °C

240 MPa

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min.

50.0 °C

215 MPa

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min.

100.0 °C

190 MPa

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min.

150.0 °C

175 MPa

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min.

200.0 °C

165 MPa

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min.

250.0 °C

155 MPa

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min.

300.0 °C

150 MPa

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min.

350.0 °C

145 MPa

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min.

400.0 °C

140 MPa

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min.

450.0 °C

135 MPa

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min.

500.0 °C

130 MPa

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min.

550.0 °C

125 MPa

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min.

600.0 °C

120 MPa

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min.

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Yield strength Rp0.2

20.0 °C

210 MPa

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min.

50.0 °C

190 MPa

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min.

100.0 °C

165 MPa

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min.

150.0 °C

150 MPa

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min.

200.0 °C

140 MPa

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min.

250.0 °C

130 MPa

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min.

300.0 °C

125 MPa

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min.

350.0 °C

120 MPa

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min.

400.0 °C

115 MPa

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min.

450.0 °C

110 MPa

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min.

500.0 °C

105 MPa

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min.

550.0 °C

100 MPa

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min.

600.0 °C

95 MPa

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min.

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100.0 °C

1.65E-5 1/K

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for 30°C to the mentioned temperature

200.0 °C

1.7E-5 1/K

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for 30°C to the mentioned temperature

300.0 °C

1.75E-5 1/K

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for 30°C to the mentioned temperature

400.0 °C

1.8E-5 1/K

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for 30°C to the mentioned temperature

500.0 °C

1.85E-5 1/K

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for 30°C to the mentioned temperature

600.0 °C

1.85E-5 1/K

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for 30°C to the mentioned temperature

700.0 °C

1.9E-5 1/K

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for 30°C to the mentioned temperature

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Specific heat capacity

20.0 °C

485 J/(kg·K)

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100.0 °C

500 J/(kg·K)

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200.0 °C

515 J/(kg·K)

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300.0 °C

525 J/(kg·K)

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400.0 °C

540 J/(kg·K)

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500.0 °C

555 J/(kg·K)

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600.0 °C

575 J/(kg·K)

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Thermal conductivity

20.0 °C

14 W/(m·K)

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100.0 °C

15 W/(m·K)

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200.0 °C

17 W/(m·K)

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300.0 °C

18 W/(m·K)

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400.0 °C

20 W/(m·K)

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500.0 °C

21 W/(m·K)

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600.0 °C

23 W/(m·K)

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Chemical properties

PropertyValueComment

Carbon

0.04 %

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min.

Chromium

18.5 %

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Iron

Balance

Manganese

1.3 %

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Nickel

9.5 %

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Phosphorus

0.04 %

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max.

Silicon

0.4 %

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Sulfur

0.015 %

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max

Technological properties

Property
Application areas

Sandvik 5R10 is used for a wide range of industrial applications with emphasis on high temperature processes. Typical examples are: heat exchangers, condensers, pipelines, cooling and heating coils in the chemical, petrochemical, fertilizer, pulp and paper and nuclear power industries, as well as in the production of pharmaceuticals, foods and beverages.

Certifications

Approvals: JIS Approval for Stainless Steel Tubes

Cold Forming

Annealing after cold bending is not normally necessary, but this point must be decided with regard to the degree of bending and the operating conditions. Heat treatment, if any, should take the form of stress relieving or solution annealing, see under "Heat treatment".

Corrosion properties

General corrosion: Sandvik 5R10 has good resistance in

  • Organic acids at moderate temperatures
  • Salt solutions, e.g. sulfates, sulfides and sulfites.
  • Caustic solutions at moderate temperatures
  • The risk of general corrosion in sulfuric acid during shut down periods has to be taken into account. Since Sandvik 5R10 is not alloyed with molybdenum, the grade can only tolerate low concentrations at limited temperatures. In naturally aerated sulfuric acid the corrosion rate is below 0.1 mm/year provided the temperature is not higher than 20°C (68oF) in 5% solution.


    Intergranular corrosion: Sandvik 5R10 has a relatively high carbon content. Thus, there is a certain risk of reduced intergranular corrosion resistance if the steel has become sensitized after e.g. improper heat treatment or welding. Sandvik 3R12 has a significantly lower carbon content and is therefore more safe regarding intergranular attack.


    Pitting and crevice corrosion: The steel may be sensitive to pitting and crevice corrosion even in solutions of relatively low chloride content. Molybdenum alloyed steels have better resistance and the resistance improves with increasing molybdenum content.


    Stress corrosion cracking: Austenitic steel is susceptible to stress corrosion cracking. This may occur at temperatures above about 60°C (140°F) if the steel is subjected to tensile stresses and at the same time comes into contact with certain solutions, particularly those containing chlorides. Such service conditions should therefore be avoided. Conditions when plants are shut down must also be considered, as the condensates which are then formed can develop conditions that lead to both stress corrosion cracking and pitting.

    In applications demanding high resistance to stress corrosion cracking we recommend the austenitic-ferritic steel Sandvik SAF 2304.


    Gas corrosion: Sandvik 5R10 can be use in

  • Air up to 850°C (1560°F)
  • Steam up to 750°C (1380°F)
  • Synthesis gas (ammonia synthesis) up to about 550°C (1020°F)
  • Creep behavior should also be taken into account when using the steel in the creep range. In flue gases containing sulfur, the corrosion resistance is reduced. In such environments the steel can be used at temperatures up to 600-750°C (1110-1380°F) depending on service conditions.

    Factors to consider are whether the atmosphere is oxidizing or reducing, i.e. the oxygen content, and whether impurities such as sodium and vanadium are present.

    Heat Treatment

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

    Stress relieving: 850-950°C (1560-1740°F), cooling in air.

    Solution annealing: 1000-1100°C(1830-2010°F), rapid cooling in air or water.

    Hot forming

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

    Other

    Forms of supply:

    Tube and pipe are normally delivered in the solution annealed and white-pickled condition or in the bright-annealed condition. The size range can be seen from Fig. 1. U-tubes can be delivered on request.

    Welding

    The weldability of Sandvik 5R10 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 5R10, heat input of <1.5 kJ/mm and interpass temperature of <150°C (300°F) are recommended.


    Recommended filler metals:

    • TIG/GTAW or MIG/GMAW welding
      • ISO 14343 S 19 9 H / AWS A5.9 ER308H
    • MMA/SMAW welding
      • ISO 3581 E 19 9 H R / AWS A5.4 E308H-17