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A286 Technical Data
Description: Alloy A286 Stainless Steel is an age-hardenable, iron-based Super Alloy
which is useful for high strength and corrosion resistance up to 1300 Degree
Fahrenheit and for lower stress applications at higher temperatures. A286 has
high strength from 320 F
up to 1000 F long time, 1300~1500 F Short time.
Applications: Alloy A-286 Stainless Steel
is used in aircraft and industrial gas turbine, super-charger components, jet engines blades,
wheels, castings, frames, fasteners,
sockets, flange nuts, screws, afterburner parts.
Properties for A286 Stainless
Steel
Workability:
Hot Working/Forging
Alloy A-286 Stainless Steel is rolled or forged from temperature
of 1900/2050 Degrees F(1038/1121 Degrees C) using a short soaking period. It
has good resistance to deformation during
hot working. Do not forge below 1700 DegreesF(927 Degrees C).
Cold Working
In the solution treated condition, Alloy A-286 Stainless Steel can
be satisfactorily cold drawn and formed. It is somewhat stiffer than stainless
steels such as Types 316 and 310,and it work hardens rapidly.
Machinability
In general, the high temperature alloys are more
difficult to machine than stainless steels. However, the iron-base alloy
group, of which Alloy A-286 Stainless Steel is a member, is easier to machine than the
nickel-based precipitation-hardening grades such as alloy 718 or
cobalt-bearing grades such as alloy 41. Carbide insert tools are commonly used
where possible.
Chemical Composition of
Super Alloy A-286 Stainless Steel
Typical chemical analysis of
Super Alloy A-286 Stainless Steel
|
Element |
Percentage |
|
Carbon |
0.08 max |
|
Manganese |
0.35 max |
|
Phosphorus |
0.015 max |
|
Sulfur |
0.015 max |
|
Silicon |
0.35 max |
|
Chromium |
17-21 |
|
Nickel |
50-55 |
|
Molybdenum |
2.80-3.30 |
|
Columbium |
4.75-5.50 |
|
Titanium |
0.65-1.15 |
|
Aluminum |
0.20-0.80 |
|
Cobalt |
1.00 max |
|
Boron |
0.006 max |
|
Copper |
0.30 max |
|
Tantalum |
0.05 max |
|
Iron |
Balance |
Corrosion and Oxidation
Resistance of A-286 Stainless Steel
Type A-286 alloy content is similar in chromium, nickel, and molybdenum to
some of the austenitic stainless steels. Consequently, A-286 alloy possesses a
level of aqueous corrosion resistance comparable to that of the austenitic
stainless steels. In elevated temperature service, the level of corrosion
resistance to atmospheres such as those encountered in jet engine applications
is excellent to at least 1300 Degrees F (704 Degrees C).
Oxidation resistance of A-286 is high for continuous service up to 1500
Degrees F (816 Degrees C) and intermittent service up to 1800 Degrees F (982
Degrees C).
Physical Properties of Alloy A-286 Stainless Steel
Typical physical properties of
Alloy A-286 Stainless Steel are summarized in the table below.
| |
Solution
Treated |
Solution
Treated and Aged |
|
Density |
0.286
lb/in3 (7.92 g/cm3) |
0.287
lb/in3 (7.94 g/cm3) |
|
Specific
Gravity |
7.92
|
7.94
|
|
Melting
Range |
2500-2600
Degrees F |
1370-1430
Degrees C |
Linear Co-Efficient of
Thermal Expansion of Alloy A-286 Stainless Steel
The linear co-efficient of
thermal expansion for solution treated and aged A-286 is provided below.
|
Temperature Range |
Linear
Co-Efficient of Thermal Expansion
(x 10-6) |
|
Degrees
C |
Degrees
F |
/ Degrees
C |
/ Degrees
F |
|
21-93 |
70-200 |
16.5 |
9.17 |
|
21-204 |
70-400 |
16.8 |
9.35 |
|
21-316 |
70-600 |
17.0 |
9.47 |
|
21-427 |
70-800 |
17.4 |
9.64 |
|
21-538 |
70-1000 |
17.6 |
9.78 |
|
21-649 |
70-1200 |
17.8 |
9.88 |
|
21-760 |
70-1400 |
18.6 |
10.32 |
Thermal Conductivity of
Alloy A-286 Stainless Steel
The thermal conductivity at
various temperatures for A-286 are given in the following table.
|
Temperature Range |
|
|
Degrees
C |
Degrees
F |
W/m.K
|
Btu.ft/ft2.hr.
Degrees F
|
|
150
|
302 |
15.1 |
8.7 |
|
300
|
572 |
17.8 |
10.3 |
|
500 |
932 |
21.8 |
12.6 |
|
600 |
1112 |
23.9 |
13.8 |
Specific Heat of Alloy A-286 Stainless Steel
The specific heat of A-286 420 J/kg.K or 0.10
Btu/lb/ Degrees F
Magnetic Permeability
The magnetic permeability of A-286 is:
Solution treated - 1.010
Solution treated and aged - 1.007
Electrical Resistsivity of Alloy A-286
Stainless Steel
Electrical resistivity values as a function of
temperature for A-286 are given in the following table.
|
Temperature Range
|
micro
ohm-cm
|
|
Degrees
C |
Degrees
F
|
|
25
|
77
|
91.0
|
|
540
|
1004
|
115.6
|
|
650
|
1202
|
118.8
|
|
730
|
1346
|
120.1
|
|
815
|
1499
|
122.4
|
Mechanical Properties
Type A-286 alloy is formed most easily in the
solution treated condition. Typical room temperature tensile properties of
A-286 solution treated at 1800 Degrees F (982 Degrees C) are shown below.
|
Yield
Strength |
Ultimate
Tensile Strength
|
Elongation |
|
40,000 psi
|
90,000 psi
|
40%
|
|
275 MPa
|
620 MPa
|
|
As your Alloy A-286 Stainless Steel sheet, plate,
round bar, forging, strain hardened ground, solution treated, annealed cold
worked/ground supplier, we are capable of fulfilling your required sizes and
specifications. California Metal & Supply Inc. also has a stocking
program to support long term contract for your Alloy A-286 Stainless Steel
needs. We are a certified distributor of Alloy A-286 Stainless Steel.
Price List for A286 Sheet Cut to
Size
Please
call 800-707-6061 or fax to 800-707-3439. You can fill out the
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