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Rulon Bearings

Schmolz + Bickenbach 430FR Stainless Steel Bar
Categories: Metal; Ferrous Metal; Stainless Steel; T 400 Series Stainless Steel
Material Notes: Description: Ugitech’s 430FR is a ferritic stainless steel designed for soft magnetic components operating in corrosive environments. The 17.00% - 18.00% chromium makes corrosion resistance similar to 430F. The increased silicon content in this alloy allows increased magnetic characteristics over 430F in the annealed condition. 430FR has exhibited superior and consistent performance due to its higher electrical resistivity. The alloy was developed for applications that require a weak coercive magnetic force (Hc =1.88 – 3.00 Oe [150 – 240 A/m]) as needed in solenoid valves. Our controlled processing allows magnetic properties to be typically superior to industry norms. 430FR has an increased hardness over 430F, due to the increased silicon levels, reducing the deformation that occurs during the oscillation impacts that occur in AC and DC solenoid valves

Applications: Solenoid Valves and Injectors

Information provided by Schmolz + Bickenbach
Key Words: ASTM A838 Alloy 2; EN 10088-3 1.4105, X6CrMoS17
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Physical PropertiesMetricEnglishComments
Density 7.61 g/cc0.275 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 149 - 177149 - 177Magnetically Annealed (Grade 1)
Tensile Strength 448 - 552 MPa65000 - 80000 psiMagnetically Annealed (Grade 1)
Tensile Strength, Yield 310 - 448 MPa
@Strain 0.2 %		45000 - 65000 psi
@Strain 0.2 %		Magnetically Annealed (Grade 1)
Elongation at Yield >= 25 %>= 25 %Magnetically Annealed (Grade 1)
Reduction of Area >= 40 %>= 40 %Magnetically Annealed (Grade 1)
Tensile Modulus 205 GPa29700 ksi
 
Electrical PropertiesMetricEnglishComments
Magnetic Permeability 1200 - 22001200 - 2200[µ]
 21002100[µ]; Typical delivered
Magnetic Coercive Force, Hc 2.3 Oe2.3 Oe[µ]
 1.88 - 3.0 Oe1.88 - 3.0 Oe[µ]; Typical delivered
Magnetic Saturation Flux Density, Bmax 16000 Gauss16000 Gauss
Magnetic Remanence, Br 3000 - 7500 Gauss3000 - 7500 Gauss
 6700 Gauss6700 GaussTypical delivered magnetic properties
 
Thermal PropertiesMetricEnglishComments
CTE, linear 10.8 µm/m-°C
@Temperature 20.0 - 200 °C		6.00 µin/in-°F
@Temperature 68.0 - 392 °F
Thermal Conductivity 24.9 W/m-K
@Temperature 20.0 °C		173 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
 
Processing PropertiesMetricEnglishComments
Annealing Temperature  700.0 - 800.0 °C
@Time <=3600 sec		1292 - 1472 °F
@Time <=1.00 hour		For softening
 900.0 °C
@Time 7200 sec		1652 °F
@Time 2.00 hour		Optimum magnetic properties; Then cool to 930°F at a rate of 120°F per hour
 838 - 999 °C
@Time 7200 sec		1540 - 1830 °F
@Time 2.00 hour		Then cool to 930°F at a rate of 120°F per hour
Hot-Working Temperature 750.0 - 1200 °C1382 - 2192 °FUniformly heating
 
Component Elements PropertiesMetricEnglishComments
Carbon, C <= 0.065 %<= 0.065 %
Chromium, Cr 17.25 - 18.25 %17.25 - 18.25 %
Iron, Fe >= 77.855 %>= 77.855 %
Manganese, Mn <= 0.80 %<= 0.80 %
Molybdenum, Mo <= 0.50 %<= 0.50 %
Nickel, Ni <= 0.60 %<= 0.60 %
Phosphorus, P <= 0.030 %<= 0.030 %
Silicon, Si 1.0 - 1.5 %1.0 - 1.5 %
Sulfur, S 0.25 - 4.0 %0.25 - 4.0 %
 
Descriptive Properties
Corrosion ResistanceHumidity2/4
 NaCl 0.2g/l1.6% mass loss; 60°C; 500 hrs
 NaCl 0.4g/l1.6% mass loss; 60°C; 500 hrs
 NaCl 0.6g/l2.25% mass loss; 60°C; 500 hrs
 Sodium Carbonate2/4

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