CuNi30Mn1Fe 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.