Project Description

C71500 (CuNi30Mn1Fe) Copper Nickel 70/30 Tubes -ASTM B111

ASTM B111 C71500 Copper Nickel Tube is the best resistance of any of the copper alloys to impingement attack and to corrosion from most acids and waters. It is being used in severe corrosive conditions in which service lives longer than those of other copper alloys are desired.

C68700 ASTM B 111/B 111M establishes the requirements for seamless tube and ferrule stock of copper and various copper alloys up to 3 Vs in. [80 mm] inclusive, in diameter, for use in surface condensers, evaporators, and heat exchangers.

Copper or Copper Alloy UNS NO.Description
C7060090-10 Copper-Nickel
C7150070-30 Copper-Nickel
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Standard: ASTM B 111/B 111M

Description Name: ASTM B111 copper tubes, C71500 copper tubes, C71500 Copper-Nickel tubes and pipes, CuNi30Mn1Fe Copper Nickel tubes.

Size: 4mm to 90 mm

Wall Thickness: 0.5 to 10mm

Shape: Round

Length: Single random length/ Double random length or as customer’s actual request

Grade: C70600, C71500, C71640

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Referenced Documents:

  • ASTM Standards:
  • B 153 Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing
  • B 154 Test Method for Mercurous Nitrate Test for Copper and Copper Alloys
  • B 170 Specification for Oxygen-Free Electrolytic Copper Refinery Shapes
Standard GradeASTM B 111


EN 12451


DIN 17664/1785


BS 2871


JIS H3300


Pb0.05 max.0.02 max.0.03 max.0.01 max.0.05 max.
Zn1.0 max.0.5 max.0.5 max.0.5 max.
S0.05 max.0.06 max.0.08 max.
P0.02 max.
Mn1.0 max.0.5-1.50.5-1.50.5-1.50.2-1.0
C0.05 max.0.06 max.0.06 max.
Sn0.05 max.
Total Impurltles0.2 max.0.1 max.0.3 max.
Yield Strength
125 min120 min120-220
345 min300 min
Tensil Strength
360 min370 min370 min363
495 min480 min
480 min
Elongation (%)35 min35 min30 min
12 min. (WT<1.21mm)12 min
12 min. (WT<1.21mm)
Hardness Hv5150 min


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  • B 224 Classification of Coppers
  • B 846 Terminology for Copper and Copper Alloys
  • B 858 Test Method for Ammonia Vapor Test for Determining Susceptibility to Stress Corrosion Cracking in Copper Alloys
  • E 8 Test Methods for Tension Testing of Metallic Materials E 8M Test Methods for Tension Testing of Metallic Materials [Metric]
  • E 29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
  • E 53 Test Methods for Determination of Copper in Unalloyed Coppers by Gravimetry
  • E 54 Test Methods for Chemical Analysis of Special Brasses and Bronzes5
  • E 62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods
  • E 75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys
  • E 76 Test Methods for Chemical Analysis of Nickel-Copper Alloys
  • E 112 Test Methods for Determining Average Grain Size E 243 Practice for Electromagnetic (Eddy Current) Examination of Copper and Copper-Alloy Tubes
  • E 255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
  • E 478 Test Methods for Chemical Analysis of Copper Alloys
  • E 527 Practice for Numbering Metals and Alloys (UNS)

C71500 Copper Nickel tube Chemical Composition:

Copper Nickel Tube Tensile Requirements

Copper or Copper Alloy UNS NO.Temper DesignationTensile StrengthYield Strength
StandardFormermin ksimin ksi

Expansion Test

  • C71500 (CuNi30Mn1Fe) Copper Nickel Tube specimens selected for test shall withstand the expansion shown in standard when expanded in accordance with Test Method B 153. The expanded tube shall show no cracking or rupture visible to the unaided eye.
  • Hard-drawn tubes not end annealed are not subject to this test. When tubes are specified end annealed, this test is required and shall be performed on the annealed ends of the sampled tubes.
  • Tubes for ferrule stock are not subject to the expansion test.

Flattening Test

  • Test Method: Each test specimen shall be flattened in a press at three (3) places along the length, each new place to be rotated on its axis approximately one third turn from the last flattened area. Each flattened area shall be at least 2 in. in length. A flattened test-specimen shall allow a micrometer caliper set at three (3) times the wall thickness to pass freely over the flattened area. The flattened areas of the test specimen shall be inspected for surface defects.
  • During inspection, the flattened areas of the test- specimen shall be free of defects, but blemishes of a nature that do not interfere with the intended application are acceptable.
  • Tubes for ferrule stock are not subject to flattening test.

Residual Stress Test

  • A residual stress test is required to be performed only for Copper Alloy UNS Nos. C70600, C71500, C71640.
  • Unless otherwise specified, the producer shall have the option of testing the product to either the mercurous nitrate test, Test Method B 154, or the ammonia vapor test, Test Method B 858, as prescribed below.

Nondestructive Testing

Eddy-Current Test—Each C71500 (CuNi30Mn1Fe) Copper Nickel tube shall be passed through an eddy-current testing unit adjusted to provide information on the suitability of the tube for the intended application. Testing shall follow the procedures of Practice E 243.

Hydrostatic Test

Each Copper Nickel tube shall stand, without showing evidence of leakage, an internal hydrostatic pressure sufficient to subject the material to a fiber stress of 7000 psi [48 MPa] as determined by the following equation for thin hollow cylinders under tension. The tube need not be tested at a hydrostatic pressure of over 1000 psi [7.0 MPa] unless so specified.

P 5 2St/~D 2 0.8t


P = hydrostatic pressure, psi [MPa];

t = thickness of tube wall, in. [mm];

D = outside diameter of the tube, in. [mm]; and S = allowable stress of the material, psi [MPa].

Materials and Manufacture:

  • When specified in the purchase order or contract, the purchaser shall be furnished certification that samples representing each lot have been either tested or inspected as directed in this specification and requirements have been met.
  • When identified in the ordering information that product is purchased for ASME Boiler and Pressure Vessel Code applications, certification to this specification is mandatory.


  • Mill test certificates will be issued EN10204 3.1 or 3.2
  • All tubes shall be supplied as per applicable ASTM B111 /B 111M Specification.

C71500 (CuNi30Mn1Fe) Copper Nickel Tubes Photos:

ASTM B111 C71500 (CuNi30Mn1Fe) Copper Nickel Tubes

ASTM B111 C71500 (CuNi30Mn1Fe) Copper Nickel Tubes

CuNi30Mn1Fe Copper Nickel Tubes

CuNi30Mn1Fe Copper Nickel Tubes

Packing and Marking

  • Copper Nickel tubes Packed in bundles or ply wooden box wrapped in plastic, and suitably protected for sea-worthily delivery or as requested.

Packing photos:

C71500 Copper Nickel tube Wooden box package

C71500 Copper Nickel tube Wooden box package

Related Copper Alloy Tubes

Material DesignationCorresponding Material Symbol
GB/T8890ASTM B111BS2871JIS H3300DIN1785
Aluminum BrassHAL77-2C68700CZ110C6870CuZn20Al2
Admiralty BrassHSn70-1C44300CZ111C4430CuZn28Sn1
Boric BrassHsn70-18
HSn70-1 AB
Arsenical BrassH68ACZ126
Brass TubeH65/H63C28000/C27200CZ108C2800/C2700CuZn36/CuZn37


Copper and Brass Tubes Standard Information:

U.S.A.ASTM B111Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock
ChinaGB/T8890Seamless Copper alloy Heat exchanger tubes
U. KBS2871Copper and Copper Alloys Tubes
JapanJIS H3300Copper and Copper Alloy-Seamless Pipes and Tubes
GermanyDIN1785Wrought copper and copper alloy tubes for condensers and heat exchangers

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