C51000 Phosphor Bronze alloy, nominal composition of 94.80% copper and 5.0% tin, with 0.2% phosphorus deoxidation is widely used Phosphor Bronze, it provides a good combination of engineering properties such as high strength and high strength. Ductility, excellent fatigue and spring properties, excellent corrosion resistance, durability under harsh conditions, good bearing quality, low friction and higher wear resistance, excellent molding and spinning, stress relaxation resistance and good connection performance. In most cases, C51000 alloy has sufficient electrical and thermal properties to meet many current and heat transfer requirements.
Chemical Composition
|
Grade |
Cu |
Fe |
Pb |
P |
Sn |
Zn |
|
C51000 |
Remainder |
0.1 |
0.05 |
0.03-0.35 |
4.2 - 5.8 |
0.3 |
Standard of Phosphor bronze
|
GB |
DIN |
EN |
ISO |
UNS |
JIS |
||
|
- |
CuSn5 |
2.1018 |
CuSn5 |
CW451K |
CuSn5 |
C51000 |
C5102 |
|
QSn6.5-0.1 |
CuSn6 |
2.102 |
CuSn6 |
CW452K |
CuSn6 |
C51900 |
C5191 |
|
QSn8-0.3 |
CuSn8 |
2.103 |
CuSn8 |
CW453K |
CuSn8 |
C52100 |
C5210 |
Mechanical Properties C5100
|
C5100 |
HV |
Tensile Strength |
Elongation |
|
M |
90-110 |
310-395 |
>40 |
|
H/4 |
110-150 |
395-490 |
>35 |
|
H/2 |
150-180 |
490-600 |
>20 |
|
H |
180-210 |
590-680 |
>10 |
|
EH |
210-230 |
>635 |
>5 |
Performance diagram

Performance and Advantages
- C51000 phosphor bronze demonstrates excellent processing adaptability and broad application potential. This material readily supports various forming and processing techniques such as cold rolling, hot rolling, and casting, making it particularly suitable for manufacturing components with complex structures or high precision requirements. Its favorable fluidity and forming stability help minimize defects during processing, significantly improving production yield and efficiency.
- In terms of applications, C51000 phosphor bronze can be further optimized through processes like heat treatment and cold working, resulting in enhanced wear resistance, fatigue resistance, and vibration damping capabilities. This enables it to maintain stable and reliable performance even under demanding operating conditions. At the same time, the alloy retains the excellent electrical conductivity inherent to copper-based materials, allowing it to excel in fields such as electrical connectors, conductive springs, and relay contacts. It stands out as an ideal engineering material that effectively balances mechanical performance with electrical functionality.
Test Equipment

Applications
C51000 phosphor bronze, valued for its outstanding performance characteristics, finds extensive application across diverse industries. Below are its primary fields of use:
1. Electrical & Electronics Industry
Employed in the production of components such as electrical contacts, switching elements, and precision connectors.
2. Mechanical Manufacturing
Well-suited for fabricating critical mechanical parts, including automotive assemblies, transmission gears, and high-load bearings.
3. Aerospace Engineering
Used in select aircraft structures and functional components where its combination of moderate weight and reliable strength offers distinct advantages.
4. Architectural Applications
Serves as both decorative and functional material in building interiors and exteriors, offering durability alongside aesthetic appeal.
5. Medical Equipment Manufacturing
Applied in the production of medical device parts where its inherent antimicrobial properties contribute to safety and operational reliability.

FAQ
Q:What information should i confirm you when i send inquiry
A:Sometimes we need product specification like material standard or Grade, size, Qty, shipping port, Terms like FOB or CIF etc.
Q: How long of the delivery time?
A: Usually, the shipment can be delivery within 15-30days after the order confirmed.
Q: How about the payment items?
A: LC, T/T, PayPal, Western Union etc.
Q: Which country have you exported to?
A: Our main market is South America, Middle East, Africa and Europe. And have built long time relationship with Pakistan, US, Norway, Germany, Korea, Russia,Taiwan customers.And got continue orders from them every month.
Q: Can i visit your factory?
A: Sure! Welcome in any time.
Q: How about the MOQ?
A: Normally we dont have MOQ requirement, We always expect more opportunities with you. But for some special material or special size let's communicate the actual status.
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