| Alloy
Selection Guide |
Alloy
No.
PIAD
Standard |
Notes
and Comments |
Alloy Group
C
High Conductivity Copper |
C 010 |
Pure electrolytic copper
with small additions of deoxydizers to bind oxygen; excellent
electrical and thermal conductivity for application in heat
exchangers and electrical switchgear and transformers. Material can
be processed in hydrogen atmosphere. |
| C
011 |
Pure electrolytic copper
with traces of oxygen. Superior electrical and thermal conductivity.
Especially suited for application in the electrical industry for
parts such as contacts, contact carriers, arc shields. Material cannot
be processed in hydrogen atmospheres; welding must be done under an
inert gas shield. |
| C
021 |
Age-hardened
chromium-copper alloy with an excellent combination of strength,
hardness, and electrical conductivity. Should be used when hardness
and strength are required besides good electrical conductivity; very
well suited for electrical contacts. |
| C
030 |
Age-hardened copper
alloy with good thermal and electrical conductivity; especially
suited for wire or cable clamps which are used in outside industrial
atmosphere; resistant to stress corrosion. |
| C
031 |
Age-hardened copper
alloy with same characteristics as C030 but higher mechanical
strength and lower electrical properties. Used where good electrical
and thermal conductivity is required under high mechanical loads;
resistant to stress corrosion. Especially suited for electrode
holders in resistance welding equipment. |
Alloy Groups
M & S
Brass and Special Brass |
M
010 |
High-quality brass of
excellent castability; suitable for complicated thin-wall parts in
the electrical, machinery, hardware and equipment industries;
resistant to stress corrosion and atmosphere corrosion, excellent
plateability. Examples: brushholders, arc horns, meter housings,
lock hardware, instrument housings. |
| M
030 |
High-quality brass with
good machinability; recommended for parts which require additional
machining; not suitable for complicated parts. |
| S
010 |
High-quality special
brass with good mechanical properties; for parts which require
increased yield and tensile strength with applications for
electrical switchgear components, high-pressure instrument housings,
marine hardware; resistant to corrosion in industrial atmospheres. |
| S
012 |
Special brass with high
electrical and thermal conductivity; developed for use in electrical
equipment: contact carriers, terminal connectors, contacts, etc.;
cannot be tin plated; material is not resistant to stress corrosion. |
| S
0121 |
Special brass with good
electrical and thermal conductivity; for application in electrical
equipment; can be tin plated and soldered. |
| S
020 |
Special brass with very
good bearing qualities, can be used as a substitute for leaded tin
bronzes. Application examples: bearings, bushings, clutch rings. |
| S
030 |
High-strength yellow
brass for components which are subjected to high static pressure and
high stresses. Application examples: bearings for motors, parts for
high pressure valves, control panels. |
| S
031 |
High-strength yellow
brass for applications similar to S030 but better suited for
applications where vibration is involved. Application examples:
clamping pieces, levers, braces. |
| S
034 |
High-strength yellow
brass with properties similar to S031 but with improved corrosion
resistance especially in marine atmosphere. |
| S
070 |
High-strength
"nickel-silver" alloy; has excellent corrosion resistance
in many atmospheres; approved for parts used in food industry. Has
silver white color and is suitable for decorative parts without
plating. |
| S
051 |
Special brass with high
copper content; good corrosion resistance, not susceptible to stress
corrosion, excellent solderability and brazability. |
Alloy Group
A
Aluminum Bronze |
A
010 |
Good corrosion
resistance to many chemical agents; excellent for cryogenic
applications; shows not embrittlement down to temperatures of
-200°C; suitable for application in chemical industry; nonmagnetic. |
| A
011 |
Good corrosion
resistance to many chemical agents, especially H2SO4
and H3PO4; good corrosion resistance in cold
salt water and in salt water atmosphere; weldable; suitable for
nonmagnetic applications. |
| A
012 |
Good corrosion
resistance in salt water and other water application; weldable and
be heat treated; non-sparking. Used for components in the valve and
pump industry. |
| A
020 |
High-strength
nickel-aluminum bronze with excellent corrosion resistance in
atmosphere, water solution, hot and cold salt water, and many
chemical agents. Performs well where cavitation and erosion are
factors. Can be welded with common material and with carbon steel.
Can be heat treated and is suitable for applications where
non-sparking is required. |
| A
021 |
Properties similar to
A020 with reduced mechanical properties but increased ductility.
Should be applied where strength and corrosion resistance is
required. Weldable and can be heat treated. |
| A
022 |
Excellent corrosion
resistance, similar to A011 but with improved mechanical properties.
Can be welded and heat treated. |
| A
023 |
High-strength
nickel-aluminum bronze with excellent wear properties under high
loads; used for wear parts, chuck drivers, and heavy loaded spindle
nuts. Can be welded and heat treated. |
| A
0201 |
High-strength
nickel-aluminum bronze for high mechanical loads, similar to A020
but with increased mechanical properties. |
| A
0202 |
High-strength
nickel-aluminum bronze with properties similar to A020. Especially
developed for shift forks in transmissions for heavy trucks and
agricultural equipment. |
| A
030 |
Special
aluminum-nickel-manganese bronze with good corrosion resistance and
very low permeability; especially suited for applications in
instruments where low magnetic properties are required. |
Alloy Group
B
Tin Bronzes |
B
010 |
Excellent corrosion
resistance to many chemical agents; well suited for chemical and
processing industries - housings, flanges, glands; castability of
all tin bronzes in permanent mold is inferior to aluminum bronzes
and brasses. |
| B
011 |
Nickel-tin gear bronze;
especially suited for worm gears in speed reducers. |
| B
012 |
Leaded nickel-tin gear
bronze; especially suited for worm gears in speed reducers. |
| B
030 |
Special aluminum-tin
bronze for wear applications where non-sparking is a requirement. |
Alloy Table
