Products
Shape Round Bar
Surface Treatment Polished
Material Type Pure Copper, Brass, White Copper, Bronze
Application Automotive Components, Industrial Machinery…
Common Grades T1, T2, T3, Tu1, Tu2, H65, H68, Hpb59-1, B19, B25
Categories: Copper Alloy Series
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Pure copper |
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Common grades |
T1, T2, T3, TU1, TU2 |
|
Characteristics |
Conductive |
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Common uses |
Electrical switches, motor coils, electronic components, air conditioning piping, soft welding gun heads |
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Brass |
|
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Common grades |
H59, H62, H65, H68, HPb59-1 (easy-to-machine brass) |
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Characteristics |
High strength, wear-resistant, resistant to water vapor corrosion |
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Common uses |
Architectural hardware, heat exchanger tubes, pumps, power cylinders and bushings, military supplies |
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White copper |
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Common grades |
B19, B25, BFe10-1-1, BZn15-20, BA13-3 |
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Characteristics |
Stable physical properties at room temperature |
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Common uses |
Medical equipment, precision instruments, thermocouples, clock parts, eyeglass frames |
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Bronze |
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Common grades |
QCr 0.5, QCr 0.6-0.4-0.05, QSn 4-3, QSn 6.5-0.4, QSn 7-0.2, QAl 5, QAl 9-2, QAl 10-4-4, QSi 3-1, QSi 3.5-3-1.5, QMn 1.5, QMn 5, QCd 1 |
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Characteristics |
Different formulations based on hardness, strength, elasticity, high-temperature conductivity, etc. |
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Common uses |
Lamp spring clips, switch spring clips, resistance welding electrode materials (rolling welders, butt welders, contact welders, riveting welders), chromium-zirconium copper, beryllium-cobalt copper |
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CuNi2 NC005 |
1 |
2 |
4 |
6 |
8 |
3 |
10 |
14 |
|
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CN3W |
CN5W |
CN7W |
CN10W |
CN12W |
QMn3 |
CN15W |
CN20W |
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TYPE |
CuNi1 |
CuNi2CuNi4 |
CuNi6 |
CuNi8 |
CuMn3 |
CuNi10 |
CuNi14 |
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NC003 |
NC005NC007 |
NC010 |
NC012 |
MC012 |
NC015 |
NC020 |
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Composition(%) |
Cu |
Rest |
Rest |
Rest |
Rest |
Rest |
Rest |
Rest |
Rest |
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Mn |
— |
— |
— |
— |
— |
3 |
— |
0.3 |
|
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Ni |
1 |
2 |
4 |
6 |
8 |
10 |
14.2 |
||
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Max.continuous operating temperatureC |
200 |
200 |
200 |
220 |
250 |
200 |
250 |
300 |
|
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μΩ ·m(20℃)Resistivity |
0.03±10% |
0.05±10% |
0.07±10% |
0.10±10% |
0.12±10% |
0.12±10% |
0.15±10% |
0.20±5% |
|
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×105/℃
(20-600℃) Resistance-temperaturecoefficient |
<100 |
<120 |
<50 |
<60 |
<57 |
<38 |
<50 |
<38 |
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Thermovoltage tocopperat20℃inμV/K |
-8 |
-12 |
-12 |
-18 |
-22 |
– |
-25 |
-28 |
|
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Mean coefficient oflinearthermal expansion,in10/K,at a temperaturebetween20 ℃and400℃ |
17.5 |
17.5 |
17.5 |
17.5 |
17.5 |
18 |
17.5 |
17.5 |
|
|
Thermal conductance at20℃W/mK |
145 |
130 |
130 |
92 |
75 |
84 |
59 |
48 |
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Specific heat capacityat20℃J/gK |
0.38 |
0.38 |
0.38 |
0.38 |
0.38 |
0.39 |
0.38 |
0.38 |
|
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Densityat20℃(g/cm³) |
8.9 |
8.9 |
8.9 |
8.9 |
8.9 |
8.9 |
8.9 |
8.9 |
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Melting temperaturein℃ |
1085 |
1090 |
1090 |
1095 |
1097 |
1050 |
1100 |
1115 |
|
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Min.tensile strengthin N/mm² |
210 |
220 |
220 |
250 |
270 |
290 |
290 |
310 |
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% Elongation |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
25 |
|
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CuNi2 NC005 |
19 |
23 |
30 |
34 |
44 |
|
|
CN25W |
CN30W |
CN35W |
CN40W |
CN50W |
||
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TYPE |
CuNi19 |
CuNi23 |
CuNi30 |
CuNi34 |
CuNi44 |
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|
NC025 |
NC030 |
NC035 |
NC040 |
NC050 |
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Composition(%) |
Cu |
Rest |
Rest |
Rest |
Rest |
Rest |
|
Mn |
0.5 |
0.5 |
1 |
1 |
1 |
|
|
Ni |
19 |
23 |
30 |
34 |
44 |
|
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Max.continuous operating temperatureC |
300 |
300 |
350 |
350 |
400 |
|
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μΩ ·m(20℃)Resistivity |
0.25±5% |
0.30±5% |
0.35±5% |
0.40±5% |
0.49±5% |
|
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×105/℃
(20-600℃) Resistance-temperaturecoefficient |
<25 |
<16 |
<10 |
<-0 |
<-6 |
|
|
Thermovoltage tocopperat20℃inμV/K |
-32 |
-34 |
-37 |
-39 |
-43 |
|
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Mean coefficient oflinearthermal expansion,in10/K,at a temperaturebetween20 ℃and400℃ |
17.5 |
17.5 |
17 |
16 |
15 |
|
|
Thermal conductance at20℃W/mK |
38 |
33 |
27 |
25 |
23 |
|
|
Specific heat capacityat20℃J/gK |
0.38 |
0.38 |
0.39 |
0.4 |
0.41 |
|
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Densityat20℃(g/cm³) |
8.9 |
8.9 |
8.9 |
8.9 |
8.9 |
|
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Melting temperaturein℃ |
1135 |
1150 |
1170 |
1180 |
1280 |
|
|
Min.tensile strengthin N/mm² |
340 |
350 |
400 |
400 |
420 |
|
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% Elongation |
25 |
25 |
25 |
25 |
25 |
|
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BMn3-12 |
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Alloy Name |
BMn3-12 (Manganese brass / Manganese bronze) |
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Common Grades (Nickel-based alloys reference) |
Hastelloy C276, Hastelloy C22, Hastelloy C-2000, Hastelloy C-4, Hastelloy C, Hastelloy B, Hastelloy B-2, Hastelloy B-3, Hastelloy X, Hastelloy G-30, Hastelloy G-35 |
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Chemical Composition (GB/T 5231-2022) |
Cu ≈ 87%; Mn 11.5–13.5%; Fe 0.2–0.5%; C ≤ 0.05%; Si 0.1–0.3%; P ≤ 0.005%; S ≤ 0.02%; Ni 2–3.5% (Ni+Co total); Pb ≤ 0.02%; Al ≤ 0.2%; Mg ≤ 0.03% |
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Physical Properties |
Density: ~8.4 g/cm³; Melting range: 961–1011.2 °C; Thermal expansion coefficient: 16×10-6 K-1(at 100 °C); Thermal conductivity: 21.8 W/(m·K); Specific heat capacity: 0.408 J/(kg·K); Electrical resistivity: 0.435×10-6 Ω·m; Temperature coefficient of resistivity: 0.00003 °C-1 |
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Mechanical Properties |
High hardness and wear resistance with good toughness and corrosion resistance; After quenching & aging: Tensile strength ≥ 400 MPa; Yield strength ≥ 300 MPa |
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Application Fields |
Heavy industry, construction machinery, transportation vehicles, energy equipment, aerospace, automotive; Suitable for heavy-load parts such as bearings, bushings, gears, gearboxes, hydraulic system components |
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Processing & Manufacturing |
Processing methods: casting, forging, extrusion, cutting; Heat treatment: quenching and aging to improve mechanical properties; Good weldability with various welding techniques |
