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Rulon Bearings

Sandvik Springflex SF Spring Wire
Categories: Metal; Ferrous Metal; Austenitic; Ferritic; Stainless Steel

Material Notes: Sandvik Springflex SF is a duplex (austenitic-ferritic) stainless steel especially designed for spring applications with extremely high fatigue requirements. The grade is characterized by:
  • Exceptionally good fatigue resistance
  • High resistance to stress corrosion cracking (SCC) in chloride-bearing environments
  • High resistance to general corrosion, pitting, and crevice corrosion
  • High resistance to erosion corrosion and corrosion fatigue
  • Physical properties that offer design advantages
Service temperature: -100 to 300°C (-150 to 570°F)

Information provided by Sandvik

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 7.80 g/cc0.282 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 900 - 1800 MPa131000 - 261000 psi
 1350 - 1550 MPa
@Diameter 5.00 - 8.00 mm
196000 - 225000 psi
@Diameter 0.197 - 0.315 in
 1450 - 1650 MPa
@Diameter 3.50 - 5.00 mm
210000 - 239000 psi
@Diameter 0.138 - 0.197 in
 1550 - 1750 MPa
@Diameter 2.00 - 3.50 mm
225000 - 254000 psi
@Diameter 0.0787 - 0.138 in
 1700 - 1900 MPa
@Diameter 1.25 - 2.00 mm
247000 - 276000 psi
@Diameter 0.0492 - 0.0787 in
 1800 - 2000 MPa
@Diameter 0.800 - 1.25 mm
261000 - 290000 psi
@Diameter 0.0315 - 0.0492 in
 1900 - 2100 MPa
@Diameter 0.500 - 0.800 mm
276000 - 305000 psi
@Diameter 0.0197 - 0.0315 in
Tensile Strength, Yield 765 - 1530 MPa
@Strain 0.2 %
111000 - 222000 psi
@Strain 0.2 %
Flatwire
 1135 - 1335 MPa
@Diameter 5.00 - 8.00 mm,
Strain 0.2 %
164600 - 193600 psi
@Diameter 0.197 - 0.315 in,
Strain 0.2 %
 1220 - 1420 MPa
@Diameter 3.50 - 5.00 mm,
Strain 0.2 %
177000 - 206000 psi
@Diameter 0.138 - 0.197 in,
Strain 0.2 %
 1305 - 1505 MPa
@Diameter 2.00 - 3.50 mm,
Strain 0.2 %
189300 - 218300 psi
@Diameter 0.0787 - 0.138 in,
Strain 0.2 %
 1430 - 1630 MPa
@Diameter 1.25 - 2.00 mm,
Strain 0.2 %
207000 - 236000 psi
@Diameter 0.0492 - 0.0787 in,
Strain 0.2 %
 1515 - 1715 MPa
@Diameter 0.800 - 1.25 mm,
Strain 0.2 %
219700 - 248700 psi
@Diameter 0.0315 - 0.0492 in,
Strain 0.2 %
 1600 - 1800 MPa
@Diameter 0.500 - 0.800 mm,
Strain 0.2 %
232000 - 261000 psi
@Diameter 0.0197 - 0.0315 in,
Strain 0.2 %
Modulus of Elasticity 200 GPa29000 ksias delivered
 205 GPa29700 ksitempered
Poissons Ratio 0.300.30as delivered; Calculated
 0.300.30Tempered; Calculated
Shear Modulus 77.0 GPa11200 ksias delivered
 79.0 GPa11500 ksitempered
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000840 ohm-cm
@Temperature 20.0 - 100 °C
0.00000840 ohm-cm
@Temperature 68.0 - 212 °F
 
Thermal PropertiesMetricEnglishComments
CTE, linear  11.5 µm/m-°C
@Temperature 30.0 - 200 °C
6.39 µin/in-°F
@Temperature 86.0 - 392 °F
Cold worked
 11.5 µm/m-°C
@Temperature 30.0 - 300 °C
6.39 µin/in-°F
@Temperature 86.0 - 572 °F
Cold worked
 12.0 µm/m-°C
@Temperature 30.0 - 400 °C
6.67 µin/in-°F
@Temperature 86.0 - 752 °F
Cold worked
 12.5 µm/m-°C
@Temperature 30.0 - 100 °C
6.94 µin/in-°F
@Temperature 86.0 - 212 °F
Cold worked
 13.0 µm/m-°C
@Temperature 30.0 - 100 °C
7.22 µin/in-°F
@Temperature 86.0 - 212 °F
Aged
 13.5 µm/m-°C
@Temperature 30.0 - 200 °C
7.50 µin/in-°F
@Temperature 86.0 - 392 °F
Aged
 13.5 µm/m-°C
@Temperature 30.0 - 300 °C
7.50 µin/in-°F
@Temperature 86.0 - 572 °F
Aged
 14.0 µm/m-°C
@Temperature 30.0 - 400 °C
7.78 µin/in-°F
@Temperature 86.0 - 752 °F
Aged
Specific Heat Capacity 0.500 J/g-°C
@Temperature 50.0 - 100 °C
0.120 BTU/lb-°F
@Temperature 122 - 212 °F
Thermal Conductivity  14.0 W/m-K
@Temperature 20.0 °C
97.2 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
 16.0 W/m-K
@Temperature 100 °C
111 BTU-in/hr-ft²-°F
@Temperature 212 °F
 17.0 W/m-K
@Temperature 200 °C
118 BTU-in/hr-ft²-°F
@Temperature 392 °F
 19.0 W/m-K
@Temperature 300 °C
132 BTU-in/hr-ft²-°F
@Temperature 572 °F
Maximum Service Temperature, Air 300 °C572 °F
Minimum Service Temperature, Air -100 °C-148 °F
 
Component Elements PropertiesMetricEnglishComments
Carbon, C <= 0.030 %<= 0.030 %
Chromium, Cr 22 %22 %
Manganese, Mn 0.90 %0.90 %
Molybdenum, Mo 3.2 %3.2 %
Nickel, Ni 5.0 %5.0 %
Nitrogen, N 0.18 %0.18 %
Phosphorus, P <= 0.030 %<= 0.030 %
Silicon, Si 0.50 %0.50 %
Sulfur, S <= 0.015 %<= 0.015 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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