High Temperature Copper Alloy C70250 ASTM B888 NF A51-121 Pipe

Product Details
Customization: Available
Application: Relays/Switches
certification: ASTM B888
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Number of Employees
355
Year of Establishment
2002-03-07
  • High Temperature Copper Alloy C70250 ASTM B888 NF A51-121 Pipe
  • High Temperature Copper Alloy C70250 ASTM B888 NF A51-121 Pipe
  • High Temperature Copper Alloy C70250 ASTM B888 NF A51-121 Pipe
  • High Temperature Copper Alloy C70250 ASTM B888 NF A51-121 Pipe
  • High Temperature Copper Alloy C70250 ASTM B888 NF A51-121 Pipe
  • High Temperature Copper Alloy C70250 ASTM B888 NF A51-121 Pipe
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Basic Info.

Model NO.
C70250
Temperature Classification
High Temperature Piping
MPa Classfication
Ultra High Pressure Piping
Material
Copper Alloy
Standard
ASTM, GB, API, DIN, JIS, BS
Medium
Liquid
Cross-Section Shape
Round
Connection Type
Seamless
Diameter
419mm
Transport Package
Wooden Case
Specification
1.2m*1.2m*L
Trademark
Hehong
Origin
China
Production Capacity
600ton/Month

Packaging & Delivery

Package Size
80.00cm * 80.00cm * 80.00cm
Package Gross Weight
1.000kg

Product Description

Product Details for CuNi3Si1Mg (C70250)

1. Core Specifications
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

High Strength: Impressive tensile strength ranging from 620-900 MPa and yield strength between 450-750 MPa, varying by temper to meet demanding engineering needs.
High Conductivity: Boasting electrical conductivity levels of 25-34 MS/m (45-60% IACS), this alloy outperforms standard bronze and brass, ensuring enhanced performance.
Stress Relaxation Resistance: Exceptional stress relaxation resistance, maintaining over 70% residual stress at elevated temperatures of 200°C.
Formability: Features excellent cold workability with a minimum bending radius of just 2 times the material thickness, ensuring versatile application.
Eco-Certified: Environmentally friendly and lead-free, compliant with RoHS & ELV regulations, prioritizing sustainability.

3. Typical Applications
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
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
  • Cold Working: Ideally suited for stamping and bending processes, with a minimal bend radius of 2 times the thickness, ensuring precision.
  • Welding: Recommended welding methods include TIG/MIG for excellent results and soft soldering for good performance.
  • Heat Treatment:
    • Soft Annealing: Best done at 600-700°C for 1-3 hours to achieve optimal softness and flexibility.
    • Hot Working: Conducted efficiently between 800-950°C to maintain material integrity.
6. Available Forms & Dimensions
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
  • Certifications: Certified by ASTM B888, RoHS, and ELV standards, with detailed Mill Certificates available for assurance.
  • Testing Reports: Comprehensive testing reports covering mechanical properties, conductivity, and metallurgical analysis provide quality insights.
  • Customization: Offering customization services for non-standard sizes and specialized surface treatments, including tin and silver plating.


Company Reference
High Temperature Copper Alloy C70250 ASTM B888 NF A51-121 Pipe
High Temperature Copper Alloy C70250 ASTM B888 NF A51-121 Pipe


 
High Temperature Copper Alloy C70250 ASTM B888 NF A51-121 Pipe
Jiangyin Hehong Precision Technology (HHP COPPER /Jiangyin New Huahong Copper Industry Co., Ltd. ) is a reputable branch of Huahong Group (A-STOCK : 002645.SZ), known for its expertise in producing high-quality Copper Alloy products, strategically positioned near Shanghai in eastern China.


We specialize in the production of copper and copper alloy (admiralty brass/naval brass, aluminum brass, cupronickel/copper nickel) condenser tubes and heat exchange solutions, offering large diameter copper nickel pipes, copper alloy forged flanges, oxygen-free copper products, and railway ground cables. With an impressive annual production capacity exceeding 30,000 tons, our products are vital in industries like seawater desalination, nuclear power, petrochemical, marine, steam turbine, pressure vessels, heat exchangers, central air-conditioning, household appliances, and railway transit.
Moreover, we contributed to writing the National Standard for copper alloy seamless tubes/pipes applicable in Nuclear Powerindustries! A testament to our industry leadership.

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