Inconel 600

INCONEL 600 TECHNICAL DATA

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