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Features
* Outstanding oxidation resistance to
2200 °F
* Highly resistant to carburization
* Good creep and rupture strength
* Metallurgical stability
Applications
* Heat treating muffles and retorts
* Radiant tubes
* Catalyst support grids in nitric acid
production
* Steam superheater tube supports
* Refractory anchors
Nominal Chemical
Composition
|
element
|
weight %
|
|
Nickel
|
61.5
|
|
Chromium
|
22.5
|
|
Aluminum
|
1.4
|
|
Carbon
|
.05
|
|
Manganese
|
.3
|
|
Silicon
|
.2
|
|
Iron
|
14
|
Specifications
UNS N06601
ASTM B 168
ASME SB-i 68
AMS 5870, 5715
|
|
Performance Profile
RA601 is a nickel-chromium alloy, highly
resistant to oxidation through 2200 °F. RA601
develops a tightly adherent oxide scale which
resists spalling even under conditions of severe
thermal cycling. The alloy has good high
temperature strength, and retains its ductility
after long service exposure. RA601 has good hot
corrosion resistance under oxidizing conditions.
However, RA601 is not suggested for use in strongly
reducing, sulfur bearing environments. For maximum
oxidation resistance, RA6O1 should be welded with
matching composition 601 wire, or with RA333
welding wire and RA333-70-16 welding
electrodes.
Mechanical Properties
Minimum Room Temperature Properties
|
Tensile Strength, psi
|
0.2% Yield Strength, psi
|
Elongation %
|
|
80,000
|
30,000
|
35
|
Stress for 1% Total Creep in 10,000 hrs,
psi
|
1600 °F
|
1300
|
|
1800 °F
|
700
|
|
2000 °F
|
280
|
Physical Properties
|
Density lb/in3
0.293
|
Melting Range °F
2375-2495
|
|
Temp °F
|
Coefficient* of Thermal Expansion,
in/in°F x 10-6
|
Thermal Conductivity
Btu•ft/ft2•hr•°F
|
Modulus of Elasticity Dynamic, psi
x 106
|
|
70
|
-
|
6.5
|
29.95
|
|
1000
|
8.5
|
11.6
|
25.43
|
|
1200
|
8.9
|
12.7
|
24.12
|
|
1400
|
9.2
|
13.7
|
22.48
|
|
1600
|
9.5
|
14.8
|
20.54
|
|
1800
|
9.8
|
15.8
|
18.43
|
|
2000
|
10.2
|
16.9
|
16.20
|
* From 70 °F to indicated temperature.
|