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

CuNi30Mn1Fe Copper

Copper

Designation

  • Name: Iron-Manganese Cupronickel CuNi30Mn1Fe

  • International Designation: CW354H (EN), C71500 (US), BFe30-1-1 (GB), DIN 2.0882

  • Standards: DIN 17664, EN 1652, ISO 1634, GB/T 5231-2012.


Key Features

1. Superior Corrosion Resistance: Resists seawater, salt spray, acids, and alkalis with high stability.

2. High Strength & Ductility: Tensile strength up to 520 MPa, elongation 14–40%.

3. Excellent Machinability: Compatible with cold/hot forming, welding (TIG/laser).

4. Conductivity: ~4.8% IACS electrical conductivity, thermal conductivity 37.3 W/m·K.

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


Common Forms & Dimensions

Form

Dimensions

Round Bar

Diameter: Φ5.0mm–300mm

Plate

Thickness: 0.3–15mm (thin), 2.5–125mm (thick)

Tube

Seamless per EN 12449 (Wall ≤15mm)

Wire

Diameter: 0.5mm–6.0mm

Forged Parts

Custom flanges, valves, bushings

Note: Confirm feasibility for non-standard sizes.


Chemical Composition (wt%)

Element

Cu

Ni

Fe

Mn

Pb

S

Impurities

Range

Bal.

29–32

0.4–1.0

0.5–1.5

≤0.03

≤0.06

≤0.3

Data based on DIN 17664; cobalt (Co) ≤0.1%.


Physical Properties

Property

Value/Description

Density

8.9 g/cm³

Thermal Conductivity

37.3 W/m·K (at 20°C)

Electrical Conductivity

~4.8% IACS

Elastic Modulus

154 GPa

Thermal Expansion

16.8×10⁻⁶/K

Data from multi-source tests.


Mechanical Properties

Property

Range/Typical Value

Tensile Strength (Rm)

350–520 MPa (varies by temper)

Yield Strength (Rp0.2)

120–300 MPa

Elongation (A)

14–40%

Brinell Hardness (HB)

80–160

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


Core Advantages

  • Extreme Environment Adaptability: Suitable for marine, chemical, and high-pressure environments.

  • Versatile Processing: Supports casting, forging, welding, and precision machining.

  • Low Maintenance: Anti-fouling and wear-resistant properties.


Applications

  • Marine Engineering: Desalination pipes, ship condensers, submarine pipelines.

  • Chemical Industry: Reactors, heat exchangers, acid transfer pipes.

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

  • Shipbuilding: Valves, pump bodies, salt spray-resistant parts.


Processing Guidelines

1. Welding: Prefer TIG welding; post-weld passivation required.

2. Cold Working: Deformation ≤20% per pass; anneal at 600–720°C.

3. Machining: Carbide tools with coolant.

4. Surface Treatment: Nickel/tin plating for corrosion resistance.


Key Application Scenarios

  • Nuclear Power Plants: Chloride-resistant heat transfer tubes.

  • Petrochemical: High-pressure reactor linings.

  • Aerospace: High-temperature conductive components.


FAQs

Q1: How does CuNi30Mn1Fe differ from B10 cupronickel?

A: B10 contains 10% Ni with lower strength; CuNi30Mn1Fe has 29–32% Ni and Fe/Mn for enhanced performance.


Q2: Suitable for sulfur-rich environments?

A: Not recommended due to sulfide stress corrosion risks.


Q3: High-temperature performance?

A: Stable ≤200°C long-term; short-term tolerance up to 250°C.


Standards Reference

  • DIN 17664: Chemical and mechanical specifications.

  • EN 1652: Plate and strip processing standards.

  • ISO 1634: Corrosion resistance testing.


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