|
Material |
Trade Name |
UNS NO |
BS NO |
IS NO |
DIN NO |
JIS |
|
Mipalloy C |
Copper |
C11000 |
|
IS 191 |
|
|
|
Mipalloy 3 |
Chromium Copper |
C18200 |
BS4577
A2/1 |
IS
8365 |
|
Z3234
CLASS 2 |
|
Mipalloy 3ZR |
Chromium Zirconium Copper |
C18150 |
BS4577
A2/2 |
IS
8365 |
17666
CR.ZR.CU |
Z3234
CLASS 2 |
|
Mipalloy 100 |
Nickel
Silicon Chromium Copper |
C18000 |
|
IS
8365 |
|
|
|
Mipalloy 100 |
Beryllium Copper |
C17500
C17510 |
BS4577
A3/1 |
IS
8365 |
17666
Cu.Co.Be. |
Z3234
CLASS 3 |
|
Mipalloy 4 |
2%
Beryllium Copper |
C17200 |
|
|
|
|
|
Tungsten Copper |
Tungsten Copper |
|
|
|
|
|
|
Tungsten |
Tungsten |
|
|
|
|
|
|
Molybdenum |
Molybdenum |
|
|
|
|
|
|
IACS : International Annealed Copper Standard
RWMA : Resistance Welder Manufactures' Association (USA) |
Typical Physical And Mechanical Properties Of
Mipalloy Materials
Top |
|
|
ALLOY |
|
PRINCIPAL
ELEMENTS |
RWMA |
HARDNESS
ROCKWELL |
Electrical
Conductivity
%I.A.C.S |
ULTIMATE
STRENGTH
P.S.I |
ELONGATION
% IN 2" |
ANNEALING
TEMP °C |
|
MIPALLOY C Copper |
CAST
WROUGHT |
Copper |
|
30 B
30 B |
100
100 |
30,000
35,000 |
30
30 |
180
180 |
|
MIPALLOY 3 Chromium Copper |
CAST
WROUGHT |
Chromium
Copper |
Group A
Class 2 |
70 B
83 B |
85
85 |
50,000
75,000 |
20
15 |
500
500 |
|
MIPALLOY 3ZR Chromium Zirconium Copper |
CAST
WROUGHT |
Chromium
Zirconium
Copper |
Group A
Class 2 |
70 B
83 B |
85
85 |
50,000
75,000 |
20
15 |
525
525 |
|
MIPALLOY 100 Beryllium Copper |
CAST
WROUGHT |
Beryllium
Copper |
Group A
Class 3 |
95 B
100 B |
48
48 |
95,000
1,10,000 |
6
10 |
550
550 |
|
MIPALLOY 100 Nickel Silicon Chromium Copper |
CAST
WROUGHT |
Nickel
Silicon Chromium Copper |
Group A
Class 3 |
95 B
100 B |
48
48 |
95,000
1,10,000 |
6
10 |
550
550 |
|
MIP
ALLOY 4 2% BERYLLIUM COPPER |
|
Beryllium Copper |
Group
A Class 4 |
37 C |
|
|
|
|
|
MIPALLOY M56WC Tungsten Copper |
SINTERED |
56W:44Cu |
Group
B Class 10 |
72-82
B |
55-60% |
|
|
|
|
MIPALLOY M68WC Tungsten Copper |
SINTERED |
68W:32Cu |
Group
B Class 10 |
85-92
B |
48-53% |
|
|
|
|
MIPALLOY M70WC Tungsten Copper |
SINTERED |
70W:30Cu |
Group
B Class 10 |
88-95
B |
47-52% |
|
|
|
|
MIPALLOY M75WC Tungsten Copper |
SINTERED |
75W:25Cu |
Group
B Class 11 |
96-99
B |
42-50% |
|
|
|
|
MIPALLOY M80WC Tungsten Copper |
SINTERED |
80W:20Cu |
Group
B Class 12 |
99-104
B |
41-49% |
|
|
|
|
MIPALLOY M100W Tungsten |
SINTERED |
100%W |
Group B Class 13 |
69 A |
31% |
|
|
|
|
MIPALLOY M100M Molybdenum |
SINTERED |
100%Mo |
Group B Class 14 |
89 B |
30% |
|
|
|
|
| |
| Application
Top |
|
| MIPALLOY
3 |
Recommended for spot
and seam welding of cold and hot rolled steels and coated
materials, current carrying arms & shafts, back-up bars for both
resistance and arc welding and electrical current carrying
structural parts, electrical contacts, EDM electrodes,
continuous casting mould plates, welding nozzles. Chromium
Copper is particularly suitable for applications where
considerably higher strength than what is achievable with Copper
in conjunction with higher electrical & thermal conductivity. It
can also be used as commutator segment material for machines
which are required to operate at temperatures above those
normally encountered in electrical machines. In the form of
forging the material is used for cylinder heads of internal
combustion engines particularly for Air Crafts. The use of
Chromium Copper plates has been advocated for walls of Junker
type water cooled moulds for the brass industry. Forged heat
treated Chromium Copper components are used extensively in the
switchgear industry as contact members of extra high voltage
circuit breakers. |
| MIPALLOY
3ZR |
Similar in composition to Mipalloy 3 but has a
small addition of Zirconium. Used for the same applications as
that of Mipalloy 3. Mipalloy 3ZR retains its properties at
elevated temperatures and under good practical conditions can
provide a longer life. Recommended for coated steels. Most
suitable as electrode material for welding coated steels. The
Zirconium content discourages brass build up on tips. Used for
electrical contacts, EDM electrodes, continuous casting mould
plates, welding nozzles. |
| MIPALLOY
100 |
Recommended for spot and seam welding of
stainless steel and high temperature heat resisting alloys
requiring high weld forces, flash butt welding dies, back-up
bars, projection welding electrodes, high strength, high
conductivity electrical component and springs, electrical
contacts, EDM electrodes, plastic moulds, continuous wire
casting dies. |
|
MIPALLOY 4 |
Recommended for Manufacture of Stud
Welder Collets, Plunger Tips. This material ha excellent spring
properties & very high hardness |
| TUNGSTEN
COPPER |
Recommended for use as flash butt welding die
inserts, electrical upsetting, electro-forging dies, facing for
contact shoes, spot welding of metals that have high internal
resistance like stainless steel. Best known material for EDM /
Spark Erosion electrodes. Used as contacts in switchgears &
heavy duty circuit breakers, on-load voltage tap changers.
Tungsten based heavy metal is used as tool shanks for boring
bars and tools for chatter free machining, die casting tools.
Tungsten based heavy metal are widely used for counter weights
and counter balances, shielding components against radiation
etc.
|
| TUNGSTEN |
It is extremely hard
with low ductility. It does not alloy with non-ferrous metals.
It is used for cross wire welding of Copper or Brass. Ideal for
welding thin Copper stock, Braided Copper wires. Better results
can be obtained by electro-tin plating braided wires before
welding. |
| MOLYBDENUM |
Used for welding or
brazing of Copper conductors to ferrous or non-ferrous
terminals, lugs or fitting. Molybdenum can be drilled or
machined unlike M100W which can be only ground, wire cut or
machined by EDM. |
| |
| Development Of Alloys For Resistance Welding Application
Top |
|
The
constant need to keep pace with technological innovations has inspired us here at Mipalloy
to produce special Copper-Alloys for solving the recurring or new problems of the
engineering and electrical industries requiring:
- Good mechanical properties associated with
electrical and thermal conductivity.
- Good mechanical properties at high operating
temperatures.
- Good impact and fatigue properties during
actual working.
- Good anti-friction properties
But this field of
metallurgy is very young and fast-moving. So to meet the requirements of special
Copper-Alloys used in the field of (1) Resistance Welding (2) Components in the
electrical and electronic industries - we have committed ourselves fully to the
development of the following families of alloys:
- Chromium-Copper
- Chromium Zirconium Copper
- Beryllium-Copper
- Tungsten-Copper
|
