Product Description
Chemical Composition:
| Designation |
Chemical Composition % |
| Cu |
Sn |
Al |
As |
Ni |
Fe |
Mn |
Pb max. |
Zn |
| C44300 |
70.0-73.0 |
0.9-1.2 |
- |
0.02-0.06 |
- |
0.06 max |
- |
0.07 |
Rem |
| C68700 |
76.0-79.0 |
- |
1.8-2.5 |
0.02-0.06 |
- |
0.06 max |
- |
0.07 |
Rem |
| C70400 |
Rem |
- |
- |
- |
4.8-6.2 |
1.3-1.7 |
0.3-0.8 |
0.05 |
1.0max |
| C70600 |
Rem |
- |
- |
- |
9.0-11.0 |
1.0-1.8 |
1.0max |
0.05 |
1.0max |
| C71500 |
Rem |
- |
- |
- |
29.0-33.0 |
0.4-1.0 |
1.0max |
0.05 |
1.0max |
| C71640 |
Rem |
- |
- |
- |
29.0-32.0 |
1.7-2.3 |
1.5-2.5 |
0.05 |
1.0max |
The world standard Grade equivalent to ASTM B111
| Material Designation |
Corresponding Material Symbol |
| GB/T8890 |
ASTM B111 |
BS2871 |
JIS H3300 |
DIN1785 |
| Copper-Nickel |
BFe10-1-1 |
C70600 |
CN102 |
C7060 |
CuNi10Fe1Mn |
| BFe30-1-1 |
C71500 |
CN107 |
C7150 |
CuNi30Mn1Fe |
| (BFe30-2-2) |
C71640 |
CN108 |
C7164 |
CuNi30Fe2Mn2 |
| (BFe5-1.5-0.5) |
C70400 |
- |
- |
- |
| B7 |
- |
- |
- |
- |
| Aluminums Brass |
HAL77-2 |
C68700 |
CZ110 |
C6870 |
CuZn20Al2 |
| Admiralty Brass |
HSn70-1 |
C44300 |
CZ111 |
C4430 |
CuZn28Sn1 |
| Boric Brass |
Hsn70-18 |
- |
- |
- |
- |
| HSn70-1 AB |
- |
- |
- |
- |
| Arsenical Brass |
H68A |
- |
CZ126 |
- |
- |
| Brass Tube |
H65/H63 |
C28000/C27200 |
CZ108 |
C2800/C2700 |
CuZn36/CuZn37 |
Tensile Requirements
| Copper or Copper Alloy UNS NO. |
Temper Designation |
Tensile Strength |
Yield Strength |
| Standard |
Former |
min ksi |
min ksi |
| C44300 |
O61 |
annealed |
45 |
15 |
| C68700 |
O61 |
annealed |
50 |
18 |
| C70400 |
H55 |
light-drawn |
38 |
30 |
| C70600 |
H55 |
light-drawn |
45 |
15 |
| C71500 |
O61 |
annealed |
52 |
18 |
| C71640 |
O61 |
annealed |
63 |
25 |
ASTM Standards:
- B153 Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing.
- B154 Test Method for Mercurous Nitrate Test for Copper and Copper Alloys.
- B170 Specification for Oxygen-Free Electrolytic Copper Refinery Shapes.
- B224 Classification of Coppers.
- B846 Terminology for Copper and Copper Alloys.
- B858 Test Method for Ammonia Vapor Test for Determining Susceptibility to Stress Corrosion Cracking in Copper Alloys.
- E8 Test Methods for Tension Testing of Metallic Materials E 8M Test Methods for Tension Testing of Metallic Materials [Metric].
- E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications.
- E53 Test Methods for Determination of Copper in Unalloyed Coppers by Gravimetry.
- E54 Test Methods for Chemical Analysis of Special Brasses and Bronzes.
- E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods.
- E75 Test Methods for Chemical Analysis of Copper-Nickel and Copper-Nickel-Zinc Alloys.
- E76 Test Methods for Chemical Analysis of Nickel-Copper Alloys.
- E112 Test Methods for Determining Average Grain Size E 243 Practice for Electromagnetic (Eddy Current) Examination of Copper and Copper-Alloy Tubes.
- E255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition.
- E478 Test Methods for Chemical Analysis of Copper Alloys.
- E527 Practice for Numbering Metals and Alloys (UNS).
Expansion Test
- 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. C23000, C28000, C44300, C44400, C44500, C60800, C61300, C61400, and C68700.
- 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 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 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.
Detailed Photos
Audited Supplier 
){kind=link}