Explore the Comprehensive Product Details for CuNi3Si1Mg (C70250) - a marvel of engineering and innovation from Gansu Hehong New Materials Co., Ltd.
1. Core Specifications - Unravel the essential specifications that make our copper alloy unique.
| Item |
Details |
| Grade |
CuNi3Si1Mg (UNS C70250) |
| Standard |
ASTM B888, RoHS & ELV Compliant |
| Composition |
Cu (Balance), Ni 3%, Si 0.65%, Mg 0.15%, Pb <0.05% |
| Material Type |
Precipitation-Hardened High Copper Alloy |
2. Key Advantages - Discover the unparalleled benefits that set our product apart.
High Strength - Experience the robust reliability of our copper alloy.: With a tensile strength ranging from 620 to 900 MPa and a yield strength between 450 to 750 MPa, depending on the temper, our product ensures powerful performance.
High Conductivity - Benefit from superior electrical flow with this exceptional material.: Featuring an electrical conductivity between 25-34 MS/m (45-60% IACS), it surpasses standard bronze and brass, enhancing efficiency.
Stress Relaxation Resistance - Maintain strength even in challenging conditions.: The alloy retains over 70% residual stress at 200°C, ensuring stability under thermal stress.
Formability - Utilize versatile applications with ease.: Boasting excellent cold workability, it allows a minimum bending radius of 2× thickness for versatile processing.
Eco-Certified - Contribute to a greener planet with environmentally friendly products.: Lead-free and compliant with RoHS & ELV standards, our product aligns with eco-friendly practices.
3. Typical Applications - Explore the diverse uses of our high-performance copper alloy.
| Industry |
Applications |
| Electronics |
High-density connectors, CPU sockets, relay springs, micro-switch contacts |
| Automotive |
Fuel injection components, sensor terminals, battery connectors |
| Industrial Equipment |
High-temperature springs, solenoid coils, precision instrument contacts |
| Renewable Energy |
PV junction boxes, EV charging port components |
4. Physical & Mechanical Properties - Delve into the physical prowess and mechanical robustness of our alloy.
| Parameter |
Typical Value |
Test Standard |
| Density |
8.82 g/cm³ |
ISO 1183 |
| Thermal Conductivity |
190 W/(m·K) |
ASTM E1461 |
| Thermal Expansion (0-300°C) |
17.6×10-6/K |
ASTM E228 |
| Elastic Modulus |
131 GPa |
ASTM E111 |
| Hardness (HV) |
180-270 (depends on temper) |
ASTM E384 |
5. Processing & Heat Treatment - Learn the specialized approaches for optimal processing.
- Cold Working - Adapt to various fabrication needs seamlessly.: Ideal for stamping and bending processes with a minimum bend radius of 2× thickness, enabling flexible manufacturing.
- Welding - Achieve strong and reliable joints with our recommended welding methods.: Best suited for TIG/MIG welding (excellent performance) and soft soldering (good performance) to ensure durability and precision.
- Heat Treatment - Tailor the material properties to meet your specific requirements.:
- Soft Annealing: Conduct annealing at 600-700°C for 1-3 hours to refine material characteristics.
- Hot Working: Perform at 800-950°C for optimal malleability and structural integrity.
6. Available Forms & Dimensions - Find the right size and form to meet your project needs.
| Form |
Size Range |
Custom Options |
| Strip |
Thickness: 0.1mm-5.0mm, Width: ≥3mm |
Hot-dip tinned, contour-milled, coatings |
| Sheet |
Thickness: 0.5mm-10mm |
Mechanical/electrolytic polishing |
| Wire |
Diameter: 0.5mm-20mm |
Precision cold-drawn/polished |
| Tube |
OD: 3mm-50mm, Wall: 0.2mm-5mm |
Seamless/welded customization |
7. Certifications & Support - Assurance in quality and compliance backed by our certifications.
- Certifications - Trust in quality with our industry-recognized certifications.: Our products meet ASTM B888, RoHS, and ELV standards, with Mill Certificates readily available for validation.
- Testing Reports - Gain insights into the comprehensive testing that certifies our excellence.: Detailed reports covering mechanical properties, conductivity, and metallurgical analysis are available.
- Customization - Tailor our products to your exact specifications for optimal performance.: Customizable options include non-standard sizes and surface treatments like tin or silver plating to meet diverse needs.
Company Reference - A testament to our legacy of quality and innovation.
Jiangyin - The heart of our advanced manufacturing capabilities. Hehong Precision - A hallmark of excellence and precision in copper alloy manufacturing. Technology (HHP COPPER /Jiangyin New Huahong Copper Industry Co., Ltd.) is a proud branch of the renowned Huahong Group (A-STOCK : 002645.SZ), a distinguished manufacturer of copper alloy products strategically located in eastern China, near Shanghai.
We specialize in the production of an array of copper and copper alloy products, includingadmiralty brass/naval brass, aluminum brass, cupronickel/copper nickelcondenser tubes, efficient heat exchange tubes, large diameter copper nickel pipes, copper alloy forged flanges, oxygen-free copper products, and railway ground cables. Our annual production capacity exceeds 30,000 tons, serving sectors like seawater desalination, nuclear power, petrochemical, marine, steam turbines, pressure vessels, heat exchangers, central air-conditioning, household appliances, and railway transit.
Furthermore, we have contributed to the development of the National Standard for copper alloy seamless tubes/pipes used in Nuclear Power, exemplifying our commitment to innovation and excellence.
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