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Copper Round Rod
| Our copper round rods are finished either by cold drawing after hot rolling
or hot extruding or by lathing after hot forging. Our copper round rods
are manufactured in a wide range of sizes, and their dimensional accuracy
is superb. Round rods are available in silver-bearing copper same as copper
busbar, in addition to tough pitch copper and oxygen-free copper. |
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| ▲Copper Round Rod |
●Example of Use
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| ▲Crimp-style Terminals |
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| ▲Electric panel switching devices |
●Types
| Types |
Applicable
JIS No. |
Designation |
Features and application examples |
| Tough pitch copper round rods |
JIS H3250
C1100BD・
BF-F※ |
CuB |
Material with excellent electric and thermal conductivity and outstanding ductility, corrosion resistance, and weatherability. Applied for material of electric parts and chemical industry components. |
| Oxygen-free copper round rods |
JIS H3250 C1020BD・
BF-F※ |
OFCuB |
Material with superb electric and rhermal conductivity and ductility, as well as excellent weldability, corrosion resistance, and wealtherability, and with no fear of causing hydrogen embrittlement. Applied for material of electric parts and chemical industry components. |
| Silver-bearing copper round rods |
― |
AgCuB |
Ag content is generally 0.027～0.3%. Applied for trolley bars, etc. |
| Note： |
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In the place marked ※,designation BD is used for finishing by drawing and
BF-F for finishing by lathing. |
●Range of sizes
| Diameter(mm) |
Max.length |
| 6φ～70φ |
4m |
| over 70φ to 120φ |
any length between 2m and 4m |
| over 120φ to 150φ |
any length between 2.5m(130φ）～1.9m(150φ) |
| over 150φ to 200φ |
any length between 2.2m(160φ）～1.4m(200φ) |
| Other sizes are produced to order. |
●Performance
＜Mechanical properties＞
Types
(Alloy No.) |
Temper grade |
Diameter(mm) |
Tensile test |
Tensile
strength
(N/㎜2) |
Elongation
(%) |
Tough pitch copper round rods
(C1100)
Oxygen-free copper roound rods
(C1020)
|
F |
Applied for forgings
:115 or more |
195
or more |
25
or more |
| 0 |
6 to 75 incl. |
195
or more |
30
or more |
| 1/2H |
6 to 25 incl. |
245
or more |
15
or more |
| over 25 to 50 incl. |
225
or more |
20
or more |
| over 50 to 75 incl. |
215
or more |
25
or more |
| H |
6 to 25 incl. |
275
or more |
― |
| over 25 to 50 incl. |
245
or more |
― |
＜Electric conductivity＞
Types
(designation) |
Temper grade |
Electric conductivity
(%)(20℃) |
Tough pitch copper round rods
(C1100)
Oxygen-free copper round rods
(C1020) |
F |
100 or more |
| O |
100 or more |
| 1/2H |
98 or more |
| H |
97 or more |
＜Diameter tolerances＞(unit:mm)
| Diameter |
Tolerances |
| 6 or less |
±0.04 |
| over 6 to 10 incl. |
±0.04 |
| over 10 to 20 incl. |
±0.06 |
| over 20 to 35 incl. |
±0.08 |
| over 35 to 50 incl. |
±0.10 |
| over 50 to 110 incl. |
±0.3％ |
| over 110 to 200 incl. |
±2％ |
| The tolerances of length shall be +15,-0mm. |
| The tolerances of roundness shall be 1/2 or less the tolerances of diameter. |
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| Remarks： |
1. |
When plus or minus only diameter tolerances are specified, tolerances are
double the numerical values on the above. |
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2. |
Diameter tolerances other than specified or still more stringent tolerances than specified are available on request. |
＜Maximum bend＞（unit：ｍｍ）
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Bend |
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In JIS，O-material is outside of the scope.
Diameter shall be
8 to 50 incl.
In the case of 1m
or less, 2 per total length.
In the case of
over 1m to 2m incl., 2 per 1m.
In the case of over
2m to 5m incl., 5 per 2m.
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Bend（Max.）
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Reference length
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Copyright(C) 2008 Gonda Metal Industry Co., Ltd. All Rights Reserved. |
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Company Profile and History
