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Ningbo Jintian Copper (Group) Co., Ltd.
Ningbo Jintian Copper (Group) Co., Ltd.
Code
Copper

CuNi10Fe1Mn Copper

Copper

Designation

  • Name: Iron-Manganese Cupronickel CuNi10Fe1Mn

  • International Designation: CW354H (European Standard), C70600 (US), DIN 2.0872

  • Standards: DIN 17664, EN 12163, ISO 1634.


Key Features

1. Corrosion Resistance: Excellent in seawater, salt spray, and weak acids.

2. High Strength & Toughness: Enhanced by Fe and Mn, suitable for cold/hot forming.

3. Anti-Biofouling: Smooth surface reduces marine organism adhesion.

4. Conductivity: Moderate electrical/thermal conductivity for industrial use.

5. Weldability: Compatible with TIG, laser welding, and brazing.


Common Forms & Dimensions

Form

Dimensions

Round Bar

Diameter: Φ5.0mm–300mm

Plate

Thickness: 0.5–100mm

Tube

Seamless tubes per EN 12449 (Wall ≤15mm)

Wire

Diameter: 0.5mm–6.0mm

Forged Parts

Custom shapes (e.g., flanges, valve parts)

Note: Confirm feasibility for non-standard sizes.



Chemical Composition (wt%)

Element

Cu

Ni

Fe

Mn

Pb

Impurities

Range

84–88

9–11

0.8–1.2

0.5–1.0

≤0.05

≤0.3

Data based on DIN 17664.


Physical Properties

Property

Value/Description

Density

8.8 g/cm³

Thermal Conductivity

40 W/m·K (at 20°C)

Electrical Resistivity

0.25 μΩ·m (at 20°C)

Conductivity

~30% IACS

Magnetism

Slightly magnetic (Fe influence)


Mechanical Properties

Property

Range/Typical Value

Tensile Strength (Rm)

400–550 MPa (varies by temper)

Yield Strength (Rp0.2)

180–320 MPa

Elongation (A)

25–40%

Brinell Hardness (HB)

100–160

Note: Hard temper (H) offers higher tensile strength.


Core Advantages

  • Marine Adaptability: Superior seawater corrosion resistance.

  • Balanced Performance: Combines strength, ductility, and processability.

  • Eco-Friendly: ROHS-compliant, lead-free options available.


Applications

  • Marine Engineering: Seawater pumps, ship condensers, submarine cable sheaths.

  • Chemical Industry: Acid-resistant pipelines, heat exchanger plates.

  • Power Systems: Medium-voltage terminals, grounding components.

  • Automotive: Corrosion-resistant bolts, radiator brackets.


Processing Guidelines

1. Cold Working: Limit deformation to ≤20% per pass; anneal at 600–700°C.

2. Welding: Use TIG welding with inert gas shielding.

3. Machining: High-speed steel tools with coolant.

4. Surface Treatment: Tin or nickel plating for corrosion resistance.


Key Application Scenarios

  • Desalination Plants: Chloride-resistant heat transfer tubes.

  • Shipbuilding: Salt spray-resistant valve components.

  • Power Transmission: Medium-voltage electrical connectors.


FAQs

Q1: How does CuNi10Fe1Mn differ from B10 cupronickel?

A: B10 lacks Fe/Mn, offering lower strength and corrosion resistance.


Q2: Suitable for sulfur-rich environments?

A: Not recommended for long-term exposure to high-sulfur media.


Q3: How to avoid oxidation during processing?

A: Use inert gas shielding in welding and anti-oxidant coolants in machining.


Standards Reference

  • DIN 17664: Cupronickel chemical and mechanical standards.

  • EN 12163: Rod processing specifications.

  • ISO 1634: Corrosion resistance testing methods.


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