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Rulon Bearings

AISI Type S21900 (21-6-9) Stainless Steel, sheet and strip 30% cold reduction, stress relieved at 675°C (1250°F) for 1 hour
Categories: Metal; Ferrous Metal; Heat Resisting; Stainless Steel; T S20000 Series Stainless Steel
Material Notes: Austenitic, high strength, excellent corrosion resistance, and low magnetic permeability. Applications include aircraft applications such as ducting and bellows systems, tail pipes and exhaust systems, clamps, fasteners, flanges, and hydraulic tubing.
Key Words: UNS S21900, AMS 5561, ASTM A269 (XM-10), ASTM A276 (XM-10), ASTM A314 (XM-10), ASTM A412 (XM-10), ASTM A473 (XM-10), ASTM A580 (XM-10)
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Physical PropertiesMetricEnglishComments
Density 7.83 g/cc0.283 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Brinell 360360Converted from Rockwell C hardness.
Hardness, Knoop 392392Converted from Rockwell C hardness.
Hardness, Rockwell C 3939
Hardness, Vickers 378378Converted from Rockwell C hardness.
Tensile Strength, Ultimate 1151 MPa166900 psi
 774 MPa
@Temperature 480 °C		112000 psi
@Temperature 896 °F
Tensile Strength, Yield 1063 MPa
@Strain 0.2 %		154200 psi
@Strain 0.2 %
 774 MPa
@Strain 0.2 %,
Temperature 480 °C		112000 psi
@Strain 0.2 %,
Temperature 896 °F
Elongation at Break 18.5 %18.5 %in 50 mm
 13 %
@Temperature 480 °C		13 %
@Temperature 896 °F		in 50 mm
Modulus of Elasticity 200 GPa29000 ksiTypical for stainless steel
Machinability 30 %30 %Based on 100% machinability for AISI 1212 steel.
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000730 ohm-cm0.0000730 ohm-cm
 
Thermal PropertiesMetricEnglishComments
CTE, linear  16.7 µm/m-°C
@Temperature 25.0 - 95.0 °C		9.28 µin/in-°F
@Temperature 77.0 - 203 °F
 17.3 µm/m-°C
@Temperature 25.0 - 205 °C		9.61 µin/in-°F
@Temperature 77.0 - 401 °F		Annealed
 18.2 µm/m-°C
@Temperature 25.0 - 315 °C		10.1 µin/in-°F
@Temperature 77.0 - 599 °F		Annealed
 19.1 µm/m-°C
@Temperature 25.0 - 540 °C		10.6 µin/in-°F
@Temperature 77.0 - 1000 °F
 20.0 µm/m-°C
@Temperature 25.0 - 760 °C		11.1 µin/in-°F
@Temperature 77.0 - 1400 °F		Annealed
 20.0 µm/m-°C
@Temperature 25.0 - 870 °C		11.1 µin/in-°F
@Temperature 77.0 - 1600 °F		Annealed
 20.5 µm/m-°C
@Temperature 25.0 - 980 °C		11.4 µin/in-°F
@Temperature 77.0 - 1800 °F		Annealed
Specific Heat Capacity 0.480 J/g-°C0.115 BTU/lb-°FTypical value for stainless steel.
Thermal Conductivity  7.80 W/m-K
@Temperature -180 °C		54.1 BTU-in/hr-ft²-°F
@Temperature -292 °F
 10.9 W/m-K
@Temperature -73.0 °C		75.6 BTU-in/hr-ft²-°F
@Temperature -99.4 °F
 13.8 W/m-K
@Temperature 95.0 °C		95.8 BTU-in/hr-ft²-°F
@Temperature 203 °F
 16.1 W/m-K
@Temperature 205 °C		112 BTU-in/hr-ft²-°F
@Temperature 401 °F
 18.2 W/m-K
@Temperature 315 °C		126 BTU-in/hr-ft²-°F
@Temperature 599 °F
 20.2 W/m-K
@Temperature 425 °C		140 BTU-in/hr-ft²-°F
@Temperature 797 °F
 22.5 W/m-K
@Temperature 540 °C		156 BTU-in/hr-ft²-°F
@Temperature 1000 °F
 24.7 W/m-K
@Temperature 650 °C		171 BTU-in/hr-ft²-°F
@Temperature 1200 °F
 26.8 W/m-K
@Temperature 760 °C		186 BTU-in/hr-ft²-°F
@Temperature 1400 °F
 28.9 W/m-K
@Temperature 870 °C		201 BTU-in/hr-ft²-°F
@Temperature 1600 °F
 
Component Elements PropertiesMetricEnglishComments
Carbon, C <= 0.080 %<= 0.080 %
Chromium, Cr 20 %20 %
Iron, Fe 64 %64 %
Manganese, Mn 9.0 %9.0 %
Nickel, Ni 6.0 %6.0 %
Nitrogen, N 0.23 %0.23 %
Phosphorus, P <= 0.060 %<= 0.060 %
Silicon, Si <= 1.0 %<= 1.0 %
Sulfur, S <= 0.030 %<= 0.030 %

References for this datasheet.

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MQM22BQ / 13674

Master Bond adhesives




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