Seamless Copper Nickel Tube for Engineering

Seamless copper nickel tube for engineering indicates the seamless cupronickel tube applied in engineering. The following is the primary reason for usage in engineering: as copper and nickel alloy with each other easily and have simple structures, the alloys are ductile and readily fabricated. Strength and hardness for each individual alloy is increased by cold working; they are not hardened by heat treatment. Joining of 90-10 (C70600) and 70-30 (C71500) is possible by both welding and brazing.

Alloy and production standard:

C70600, C70620 (welding grade), C71500, C71640 (ASTM B111 or ASME SB111)

CuNi10Fe1Mn, CuNi30Mn1Fe, CuNi30Mn2Fe2 (EN12451 or EN12449 or DIN)

CN102, CN106, CN107 (BS British Standard)

C7060, C7150 (JIS Japanese Industrial Standards)

Chemical composition:

9.0≤Ni≤32.0 ; 1.0≤Fe≤2.3 ; 0.50≤Mn≤2.5 ; Cu Rem

Dimension/size:

Outside diameter range : 5mm~110mm

Wall thickness range : 0.3mm~10mm

Maximum length: 24 meters

Field of application:

Due to the specific properties of nickel and copper alloys, seamless copper nickel tube for engineering is extensively applied in various domains of industry e.g. coin and medal minting, armaments manufacture, desalination materials, marine engineering, and broadly used in the chemical, petrochemical and electrical industries.

Production equipments:

Guilin Lijia has 130 sets processing and testing equipments providing various copper and copper alloy tubes/pipes, coils, rods/bars and finned tubes, mainly are followings:

1. 22MN water-seal extruding machine introduced from Japan;

2. Roller bright annealing furnace introduced from Germany;

3. Coils drawing machine introduced from Britain;

4. Casting furnaces;

5. Rolling machines and drawing machines;

6. Spectrum analyzer introduced from Switzerland;

7. Metallographic microscope;

8. Eddy current flaw detector and ultrasonic flaw detector;

9. Many testing equipments, such as tension tester, hardness tester and hydrostatic testing machine.

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