Type
Analysis
|
Element
|
Min
|
Max
|
|
Carbon
|
--
|
0.10
|
|
Nickel
|
72.0 min
|
|
Chromium
|
14.0
|
17.0
|
|
Iron
|
6.00
|
10.00
|
|
Silicon
|
--
|
0.50
|
|
Manganese
|
--
|
1.00
|
|
Sulfur
|
--
|
0.015
|
|
Copper
|
--
|
0.50
|
Description
Alloy 600 is a nonmagnetic,
nickel-based high temperature alloy possessing an excellent
combination of high strength, hot and cold workability, and resistance
to ordinary form of corrosion.
This alloy also displays good heat
resistance and freedom from aging or stress corrosion throughout the
annealed to heavily cold worked condition range.
Applications
Some typical applications are:
Barge
and tank truck liners
Carburizing atmospheres
Ethylene
dichloride crackers
Furnace trays, mufflers,
hangers
Gasoline stabilizer production
MgCl2
evaporates
Phenol condensers
Soap
manufacture
Titanium dioxide
Vegetable and
fatty acid vessels
Corrosion
Resistance
The high chromium content of alloy
600 raises its oxidation resistance considerably above that of pure
nickel, while its high nickel content provides good corrosion
resistance under reducing conditions.
This alloy exhibits high
levels of resistance to stress and salt water, exhaust gases, and most
organic acids and compounds.
Average
Physical Properties
|
Physical
Properties
|
°F
|
British
Units
|
°C
|
Metric
Units
|
|
Density
|
Room
|
0.304 lb./cubic in.
|
Room
|
8.43g/cubic cm
|
|
Electrical
Resistivity
|
70
200
400
600
800
|
40.6
microhm-in.
40.9
41.5
42.2
43.0
|
21
93
204
316
427
|
1.03
microhm-m
1.04
1.05
1.07
1.09
|
|
Mean
Coefficient
of Thermal
Expansion
|
70-200
70-400
70-600
70-800
|
7.4
microinches/in.-°F
7.7
7.9
8.1
|
21-93
21-204
21-316
21-427
|
13.3 x
10(-6)m/m·K
13.9
14.2
14.6
|
|
Thermal
Conductivity
|
70
200
400
600
800
|
103
Btn-in./ft².-hr.-°F
109
121
133
145
|
21
93
204
316
427
|
14.8
W/m·K
15.7
17.4
19.2
20.9
|
|
Modulus
of
Elasticity
|
Room
|
30.0 x 10(6) psi
|
Room
|
207 GPa
|
Heat
Treatment
Alloy 600 is not an age hardening
alloy; cold working is the only available means of hardening.
Softening by annealing begins at about 1600°F (871°C), and is
reasonably complete after 10 to 15 minutes of heating at 1800°F
(982°C). Above this temperature, grain growth may be
objectionable, although very brief heating at 1900°F will cause
complete softening without undue grain growth. Since the rate of
cooling has no effect on the softening, the material may be water
quenched or air cooled.
Workability
Hot Working/Forging
Low
sulfur reducing furnace atmospheres should be used in forging. Major
hot working should be done between 2300/1850°F, while light
working may be continued as low as 1600°F. No hot working should
be attempted between 1600/1200°F due to lower ductility in that
range.
Machinability
Alloy 600 is
machinable in both the hot worked and annealed conditions. Because
considerable heat is generated in machining this alloy, high-speed
steel, cast nonferrous or cemented carbide tools should be used. The
tools should be kept sharp.
Lathe turning speeds with high-speed
and nonferrous tools are 35/45 sfm (0.18/0.23 m/s); speeds with
cemented carbide tools are 100/175 sfm (0.51/0.89 m/s). (This data
should be used as a guide for initial machine setup only. The figures
used are averages. On certain work, the nature of the part may
require adjustment of speeds and feeds.)
Sulfur-based oil should be
used as a lubricant, but should be completely removed before the
machined part is exposed to elevated temperatures, as in welding.
Cold Working
For higher
properties, alloy 600 can be cold worked below 1200°F (649°C).
Welding
Alloy 600 can be
joined by the usual welding , brazing, and soldering process.
Typical
Mechanical Properties
Typical Mechanical
Properties
Various forms and conditions
|
Form
and
Condition
|
Tensile
Strength
|
0.2%
Yield
Strength
|
%
Elongation
in 2"
|
%
Reduction
of
Area
|
Rockwell
Hardness
|
|
Rod and
Bar
Cold-drawn
Annealed
As-drawn
Hot
rolled
Annealed
As-rolled
Hot-finished
Strip
Annealed
|
80-100
105-150
80-100
85-120
80-120
80-100
|
552-689
724-1034
552-689
586-827
586-827
552-689
|
25-50
80-125
30-50
35-90
35-90
30-45
|
172-345
552-862
207-345
241-621
241-621
207-310
|
55-35
30-10
55-35
50-30
50-30
55-35
|
70-60
60-30
70-60
65-50
65-50
----
|
65-85B
90B-30C
65-85B
75-95B
75-95B
84B
max.
|
Average Room Temperature Tensile
Data
|
Form
|
Condition
|
Ultimate
Tensile Strength,
Ksi (MPa)
|
Yield
Strength at 0.2% offset,
Ksi (MPa)
|
Elongation
in 2 in. (50.8mm)
or 4D, percent
|
|
Sheet
Plate
Bar/Billet
Sheet,
Plate, Strip, Bar
|
Annealed
Annealed
Annealed
Annealed
|
98 (676)
95
(655)
95 (655)
80 (550)*
|
42 (290)
41
(283)
41 (283)
35 (240)*
|
40
45
45
30*
|
* - minimum
Typical Elevated Temperature
Tensile Properties
|
Temperature
|
Tensile
Strength
|
0.2%
Yield
Strength
|
%
Elongation
in 2"
|
|
°F
|
°C
|
ksi
|
MPa
|
ksi
|
MPa
|
|
600
800
1000
1200
1400
1600
1800
|
316
427
538
649
760
871
982
|
90.5
88.5
84.0
65.0
27.5
15.0
7.5
|
624
610
579
448
190
103
52
|
31.0
29.5
28.5
26.5
17.0
9.0
4.0
|
214
203
196
183
117
62
28
|
46
49
47
39
46
80
118
|
Stress Rupture Properties
|
Temperature
|
Stress
to Produce Rupture in:
|
|
°F
|
°C
|
10 hours
|
100 hours
|
1000 hours
|
|
ksi
|
MPa
|
ksi
|
MPa
|
ksi
|
MPa
|
|
Cold
Drawn, Annealed-3 Hours/1750°F (954°C)/Air Cooled
|
|
1000
1200
1400
1600
1800
2000
|
538
649
760
871
982
1093
|
74
34
13
7.5
4.4
2.1
|
510
234
90
52
30
14
|
50
23
8.4
4.8
2.8
2.4
|
345
159
58
33
19
17
|
34
14.5
5.6
3
1.8
--
|
234
100
39
21
12
--
|
|
Hot
Rolled, Annealed-2 Hours/1650°F (899°C)
|
|
1350
1600
1800
2000
|
732
871
982
1093
|
20
8.1
4.4
2.1
|
138
56
30
14
|
13.5
5.3
2.8
1.4
|
93
37
19
10
|
9.2
--
1.8
--
|
63
--
12
--
|
|
Solution
Annealed-20 Hours/2050°F (1121°C)/Air Cooled
|
|
1350
1500
1600
1800
2000
|
732
816
871
982
1093
|
19
11.5
8
4.4
2.1
|
131
79
55
30
14
|
14
8
5.3
2.8
1.4
|
97
55
37
19
10
|
9.8
5.6
--
1.8
--
|
68
39
--
12
--
|
| 
