Beryllium Copper Series
Beryllium Copper Series
Beryllium Copper Series
Beryllium Copper Series
Beryllium Copper Series
Beryllium Copper Series
Beryllium Copper Series
Beryllium Copper Series

Beryllium Copper Series

Beryllium copper (BeCu), also known as copper beryllium (CuBe), beryllium bronze and spring copper, is a copper alloy with 0.5–3% beryllium and sometimes other elements. Beryllium copper combines high strength with non-magnetic and non-sparking qualities. It has excellent metalworking, forming and machining properties. It has many specialized applications in tools for hazardous environments, musical instruments, precision measurement devices, bullets, and aerospace. Beryllium alloys present a toxic inhalation hazard during manufacture.

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Grade list of copper and copper alloys by country
Classification China Germany America Japan England Europe International
oxygen free copper TU1 2.0076 C10200 C1020R C103
TU2 Cu-OF-H110 C11000 c1011 C101
Vacuum oxygen free copper E-Cu58 TU00 c1020 6N
high purity copper-OFE c10500 c10700
Silver copper TAg 0.1 CuAg 0.1 C10400 C1040 CuAg 0.1
brass H90 CuZn10 C22000 C2200 CZ101 CuZn10 CW501L
H70 CuZn30 C26000 C2600 CZ106 CuZn30 CW505L
H68 C26200 C2620 CuZn33 CW506L
H65 CuZn35 C27000 C2700 CZ107 CuZn36 CW507L
H63 CuZn37 C27200 C2720 CZ108 CuZn37 CW508L
H62 CuZn40 C28000 C2800 CZ109 CW509L
bronze QSn4-0.3 CuSn4 C51100 C5111 PB101 CuSn4 CW450K
CuSn5 C51000 C5101 CuSn5 CW451K
QSn6.5-0.1 CuSn6 C51900 C5191 PB103 CuSn6 CW452K
QSn8-0.3 CuSn8 C52100 C5210 CuSn8 CW453K
copper-nickel BZn18-18 CuNi18Zn20 C75200 C7521 NS106 CuNi18Zn20
BZn18-26 CuNi18Zn27 C77000 C7701 NS107 CuNi18Zn27 CW410J
BZn15-20 C7541 CW409J
BZn18-10 C7350
pure copper TU2 OF-Cu58 C10100 C1011 C101 CW008A copper oxide
T2 SW——copper C11000 C1100 C101 copper - FRHC
TP2 SF-Cu C12200 C1220 C106 CW024A copper - DHP
TP1 SW-copper C12000 C1201 CW023A copper DLP

Beryllium copper is a ductile, weldable, and machinable alloy. Like pure copper, it is resistant to non-oxidizing acids like hydrochloric acid and carbonic acid, to plastic decomposition products, to abrasive wear, and to galling. It can be heat-treated for increased strength, durability, and electrical conductivity. Beryllium copper attains the greatest strength (to 1,400 MPa (200,000 psi)) of any copper-based alloy.[1] It has good thermal conductivity (62 Btu/ft-deg.F-H) 3-5 times more than Tool steel. It has a solid melting point of 1590 degrees Fahrenheit and 1800 degrees Fahrenheit liquid melting point. It has an excellent capacity for being hot formed. C17200 Copper has the strength and hardness similar to that of steel and Rockwell hardness properties in its peaked age condition are in the range of 200 ksi and RC45. C17200 has excellent corrosion resistant properties when exposed to harsh conditions such as sea water, and down-hole environments. It will withstand sulfide or chloride stress corrosion cracking, and will resist the effects of carbon dioxide and hydrogen embrittlement. Copper alloys in general have always been considered non-sparking. C17200 has the strength to withstand the use of a hand and mechanical tools. These non-sparking features are best applied in explosive environments such as in the Oil & Gas and gun powder industries.

Beryllium copper is a non-ferrous alloy used in springs, spring wire, load cells, and other parts that must retain their shape under repeated stress and strain. It has high electrical conductivity, and is used in low-current contacts for batteries and electrical connectors.

Beryllium copper is non-sparking but physically tough and nonmagnetic, fulfilling the requirements of ATEX directive for Zones 0, 1, and 2. Beryllium copper screwdrivers, pliers, wrenches, cold chisels, knives, and hammers are available for environments with explosive hazards, such as oil rigs, coal mines, and grain elevators. An alternative metal sometimes used for non-sparking tools is aluminium bronze. Compared to steel tools, beryllium copper tools are more expensive and not as strong, but the properties of beryllium copper in hazardous environments may outweigh the disadvantages.

Some other uses include:

1.  Some percussion instruments for its consistent tone and resonance, especially tambourines and triangles.

2.  Ultra-low temperature cryogenic equipment, such as dilution refrigerators, because of its mechanical strength and relatively high thermal conductivity in this temperature range.

3.  Moulds for manufacturing plastic containers (including virtually every plastic milk jug), with the blow molding process.

4.  Armour piercing bullets,[3] though such usage is unusual because bullets made from steel alloys are much less expensive and have similar properties.

5.  Measurement-while-drilling (MWD) tools in the directional drilling industry. A non-magnetic alloy is required, as magnetometers are used for field-strength data received from the tool. Also for its high strength combined with anti-galling properties.

6.  Servicing magnetic resonance imaging (mri) machines, where high strength magnetic fields make the use of ferrous tools dangerous, and where magnetic materials in the field can disturb the image.

7.  Gaskets used to create an RF-tight (resistant to radio frequency leakage), electronic seal on doors used with EMC testing and anechoic chambers.

8.  For a time, beryllium copper was used in the manufacture of golf clubs, particularly wedges and putters. Though some golfers prefer the feel of BeCu club heads, regulatory issues and high costs have made BeCu clubs difficult to find in current production.