A286 Stainless Steel UNS S66286

A286 Stainless Steel Strip, Coil, Foil, Wire, AMS 5525, AMS 5858

Applications

• Jet engine applications
• Fasteners
• low temperature applications

What is A286 Stainless Steel?

Type A286 Stainless Steel is an iron base superalloy useful for applications requiring high strength and corrosion resistance up to 1300 °F (704 °C) and for lower stress applications at higher temperatures. The alloy is also used for low temperature applications requiring a ductile, non-magnetic high strength material at temperatures ranging from above room temperature down to at least -320 °F (-196 °C). Although A286 alloy is harder than other stainless steels, it can be cold drawn and formed.

One of the advantages of A286 is that it can be precipitation hardened and strengthened by heat treatments. This makes possible a high degree of uniformity in developing maximum strength characteristics, which can be easily duplicated in manufacturing. A286 is an ideal metal alloy for cold rolling because it can be work-hardened rapidly.

What are the Chemical Properties of A286 Stainless Steel?

Carbon: 0.080 max
Manganese: 2.00 max
Silicon: 1.00 max
Chromium: 13.50-16.00
Nickel: 24.00-27.00
Titanium: 1.90-2.35
Molybdenum: 1.00-1.50
Vanadium: 0.10-0.50
Boron: 0.003-0.010
Cobalt: 1.00 max
Aluminum: 0.35 max
Phosphorus: 0.02 max
Sulfur: 0.025 max.
Iron: Balance

Physical Properties of A286 Stainless Steel

Density: 0.286 lbs/in3 7.92 g/cm3

Thermal Conductivity: BTU/hr/ft2/ft/°F (W/m•K):
At 302 °F (150 °C): 8.7 (15.1)
At 572 °F (300 °C): 10.3 (17.8)
At 932 °F (500 °C): 12.6 (21.8)
At 1112 °F (600 °C): 13.8 (23.9)

Mean Coefficient of Thermal Expansion: in/inl°F (µm/m•K)
70 - 200 °F (21 - 93 °C): 9.17 x 10-5 (16.5)
70 - 600 °F (21 - 315 °C): 9.47 x 10-5 (17.0)
70 - 800 °F (21 - 427 °C): 9.64 x 10-5 (17.4)
70 - 1000 °F (21 - 538 °C): 9.78 x 10-5 (17.6)

Modulus of Elasticity: ksi (MPa) 29.1 x 103 (201 x 103) in tension

Forms

Coil - Strip, Foil, Ribbon Wire - Profile, Round, Flat, Square

Mechanical Properties of A286 Stainless at Room Temperature

Properties: Annealed

Ultimate Tensile Strength: 105 KSI max (724 MPa max)

Elongation:

10% min: Gauge: .001 - .0015
12% min: Gauge .0015 - .002
20% min: Gauge .002 - .004
25% min: Gauge > .004

Hardness: Rb 90 max

Properties: Tempered

Consult Ulbrich Technical Services if temper rolled properties are needed.

Properties: Stress Rupture (Typical)

A stress of 67 .5 KSI min for no less than 23 hours.

Heat Treat Capabilities: Typical

Ultimate Tensile Strength:
125 KSI min (862 MPA min): Gauge: .001 - .0015
130 KSI min (896 MPA min): Gauge .0015 - .002
135 KSI min (931 MPA min): Gauge .002 - .004
140 KSI min (965 MPA min): Gauge> .004

Elongation:
4% min: Gauge: .001 - .0015
8% min: Gauge .0015 - .002
10% min: Gauge .002 - .004
15% min: Gauge > .004

Additional Properties

Corrosion Resistance of A286 Steel

Refer to NACE (National Association of Corrosion Engineers) for recommendations.

Available Finishes for A286 Stainless Steel Strip

# 1 - Hot rolled annealed and descaled. It is available in strip, foil and ribbon. It is used for applications where a smooth decorative finish is not required.
# 2D - Dull finish produced by cold rolling, annealing and descaling. Used for deep drawn parts and those parts that need to retain lubricants in the forming process. # 2B - Smooth finish produced by cold rolling, annealing and descaling. A light cold rolling pass is added after anneal with polished rolls giving it a brighter finish than 2D.
#BA - Bright annealed cold rolled and bright annealed
#CBA - Course bright annealed cold rolled matte finish and bright anneal
#2 - Cold Rolled
# 2BA- Smooth finish produced by cold rolling and bright annealing. A light pass using highly polished rolls produces a glossy finish. A 2BA finish may be used for lightly formed applications where a glossy finish is desired in the formed part. Polished - Various grit finish for specific polish finished requirements.
* Not all finishes are available for all alloys - Please contact Ulbrich sales for more information.

Wire Finishes

XC - Extra clean bright annealed or bright annealed and cold rolled Grease - Ultra-bright finish (for decorative applications) Soap - Soap is not removed from tempered wire to act as a lubricant. * Contact Ulbrich Wire with special wire finishes.

Welding A286 Stainless Steel

For best results refer to: SSINA's "Welding of Stainless Steels and Other Joining Methods".

Limitation of Liability and Disclaimer of Warranty: In no event will Ulbrich Stainless Steels & Special Metals, Inc., be liable for any damages arising from the use of the information included in this document or that it is suitable for the 'applications' noted. We believe the information and data provided to be accurate to the best of our knowledge but, all data is considered typical values only. It is intended for reference and general information and not recommended for specification, design or engineering purposes. Ulbrich assumes no implied or express warranty in regard to the creation or accuracy of the data provided in this document.