|
Plate | Welding Wire
| Sheet |
Coil
| Rod | Machining
| Typical Applications
TYPICAL
NOMINAL CHEMISTRY |
|
|
|
| Ni |
36.0 |
ANNEALED |
85,000 MAX. |
| Cr |
0.25 |
1/4 HARD |
90,000 to 115,000 |
| Mn |
0.50 |
1/2 HARD |
105,000 to 125,000 |
| Si |
0.25 |
HARD |
120,000 MIN. |
| C |
0.05 |
|
| Al |
0.10 |
TYPICAL HARDNESS,
ROCKWELL B |
| Mg |
0.10 |
ANNEALED |
70 MAX. |
| Zr |
0.10 |
1/4 HARD |
78 to 83 |
| Ti |
0.10 |
1/2 HARD |
84 to 88 |
| P |
0.020 |
|
|
| S |
0.020 |
|
|
| Fe |
BALANCE |
|
|
TYPICAL
LINEAR COEFFICIENT OF THERMAL EXPANSION
(cm. per cm. C x 10 - 6) |
30 to 100 |
1.18 |
| 30 to 200 |
1.72 |
| 30 to 300 |
4.92 |
| 30 to 350 |
6.60 |
| 30 to 400 |
7.82 |
| 30 to 425 |
N/A |
| 30 to 450 |
8.82 |
| 30 to 500 |
9.72 |
| 30 to 550 |
N/A |
| 30 to 600 |
11.35 |
| 30 to 700 |
12.70 |
| 30 to 800 |
13.45 |
| 30 to 900 |
13.85 |
| 30 to 1000 |
N/A |
| |
WORKABILITY
FORGING: The principal precaution to observe in
forging is to heat quickly and avoid soaking in the furnace. Long soaking
may result in a checked surface due to absorption of sulfur from the
furnace atmosphere and/or oxide penetration. A forging temperature of
2000/2150øF (1100/1180øC) is preferred.
Invar alloy 36 may also be swaged and cold upset.
GRINDING: A silicon carbide wheel is desirable, preferably a soft
wheel which will wear without loading. For finish grinding, a satisfactory
grade to start with is No. 80 grit.
WELDING: Alloy 36 can be welded by the conventional methods.
Caution must be taken so as not to overheat the molten metal. This will
avoid spattering of the molten metal and pits in the welded area. When
filler rod is required, Invar rod has been used.
BRAZING: Silver and zinc-free alloys have been used for brazing
Invar 36. This alloy should be annealed prior to brazing. Joints should be
designed to avoid placing material in tension during brazing.
PLATING: Alloy 36 can be chromium, cadmium and nickel plated or
zinc coated by the usual methods used for ferrous alloys.
Before machining, the welded structures
must be fully annealed.
The machinability of Invar is similar to
austenitic stainless steel such as AISI 304.
The following milling parameters can be
used (only for Invar tooling fabrication and particularly for large
tools.)
| Tool
Configuration |
Tool
Type |
Use |
Surface
Speed |
Feed
Rate |
| End
Mill |
Carbide |
Rough/Finish |
320
in./min. |
1.0
in./min. |
End
Mill
(Corn Cob) |
HSS |
Rough
Milling |
375
in./min. |
2.0
in./min. |
| End
Mill |
HSS |
Finish
Milling |
Up to
600 in./min. |
4.0
in./min. |
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|
PHYSICAL CONSTANTS: |
| Specific gravity |
8.05 |
| Density - lb/in3 |
0.291 |
| Density - kg/m3 |
8055 |
|
Thermal conductivity
BTU-in/ft2-hr-°F
W/m · K |
72.6
10.5 |
|
Electrical resistivity
ohm-cir mil/ft
microhm-mm |
495
820 |
| Temperature coefficient of electrical resistivity
per °F (70/212°F)
per °C (21.1/100°C) |
0.0006
0.0011 |
Mean coefficient of thermal expansion
10-6/°F (0.0/350°F)
k-1 (-18/175°C) |
0.90
1.6 |
| Inflection point |
375°F (191°C) |
| Curie temperature |
535°F (279°C) |
| Melting point |
2600°F (1427°C) |
Specific heat
Btu/lb-°F
kJ/kg K |
0.123
0.515 |
| |
|
|
USES: |
- Molds for composite aircraft parts
- Molds for composite boat parts
- Precision condenser plates
- Resonant cavities for radars
- Precision measurements constructions
- Special joints and washers
- Thermostatic bimetals
- Laser part applications
- Clock pendulums
- Balance wheels
- Watch parts
- Tooling
|
Available As
|
Hot Rolled Plate |
TM WIDTH LENGTH
.187 x 72 x 96
.250 x 72 x 96
.375 x 72 x 96
.500 x 72 x 96
.625 x 70 x 72
.750 x 16 x 100
1 x 16 x 56
1.5 x 16 x 46
2 x 20 x 60
2.5 x 8.250 x 51
4 x 7.125 x 18.5
4.625 x 5 x 51
5 x 12.7 x 15.5
|
|
|
Welding
Wire |
..035", 045", .062" x MIG spools (30 lbs. each)
1/16", 3/32", 1/8" x 36" TIG rods in 10 lb. tubes
|
|
Cold Rolled
Sheet |
|
T x W x L
.015 x 10.5 x 72
.030 x 24 x 72
.041 x 24 x 72
.060 x 24 x 60
.060 x 24 x 120
.100 x 24 x 72
.125 x 24 x 60
.125 x 24 x 120 |
|
|
Invar rod |
|
DIA LENGTH
.078 x 36
.093 x 36
.100 x 72
.125 x 120
.250 x 72
.500 x 144
.750 x 144
1.0 x 144
1.125 x 144
2.0
3.0
4.0 |
|
Get
Quotation: Sales
Solicite un
Precio
- MIL I 230IIC Class 7 ground plate and cold rolled sheet
- MIL S 16598 Available in rod diameters .500 and up
- Boeing-ASTM B-753 Hot rolled plate
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Disclaimer
Every effort is made to ensure that
technical specifications are accurate. However, technical specifications
included herein should be used as a guideline only. All specifications are
subject to change without notice.
|
