ASTM B644-95

Standard Specification for Copper Alloy Addition Agents

SCOPE
1.1 This specification establishes the requirements for copper nickel, ferro copper, phosphor copper, and silicon copper master alloys in ingot, shot, and waffle form to be used as addition agents for cast and wrought alloys.  
1.2 Inch-pound units are the standard. SI units given in parenthesis are for information only.

General Information

• Status: Historical
• Publication Date: 31-Dec-1994
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.05 - Castings and Ingots for Remelting

Relations

• Replaced By: ASTM B644-95(2003) - Standard Specification for Copper Alloy Addition Agents
• Effective Date: 10-Apr-2003

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: B 644 – 95
Standard Specification for
Copper Alloy Addition Agents
This standard is issued under the fixed designation B 644; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 3.1.1 ASTM designation and year of issue (for example
B 644-XX).
1.1 This specification establishes the requirements for cop-
3.1.2 Alloy number and letter; generic name (Table 1),
per nickel, ferro copper, phosphor copper, and silicon copper
3.1.3 Form; size, weight, screen distribution,
master alloys in ingot, shot, and waffle form to be used as
3.1.4 Quantity or total weight; each form, size, weight,
addition agents for cast and wrought alloys.
screen distribution.
1.2 Inch-pound units are the standard. SI units given in
parenthesis are for information only.
4. Material and Manufacture
2. Referenced Documents 4.1 Material:
4.1.1 Any material may be used which, when melted, will
2.1 ASTM Standards:
form an alloy of the required composition.
E 29 Practice for Using Significant Digits in Test Data to
4.2 Manufacture:
Determine Conformation With Specification
4.2.1 Any manufacturing process may be used that will
E 255 Practice for Sampling Copper and Copper Alloys for
yield a product uniform in composition and free of defects of
the Determination of Chemical Composition
a nature that would render the product unsuitable for the
E 62 Test Methods for Chemical Analysis of Copper and
intended application.
Copper Alloys (Photometric Methods)
E 76 Test Methods for Chemical Analysis of Nickel-Copper
5. Chemical Composition
Alloys
5.1 The product in final form shall conform to the require-
E 478 Test Methods for Chemical Analysis of Copper
3 ments prescribed in Table 1 for the specified alloy.
Alloys
5.1.1 These specification limits do not preclude the presence
E 1371 Test Method for Gravimetric Determination of
of other elements. Limits may be established and analysis
Phosphorus in Phosphorus-Copper Alloys and Phosphorus-
required for unnamed elements by agreement between the
Copper-Silver Alloys
manufacturer and the purchaser.
2.2 ISO Standard:
No. 4748 Determination of Iron Content; Na2EDTA Titri-
6. Sampling
metric Method
6.1 The inspection lot size, portion size, and selection of
portion pieces shall be as follows:
3. Ordering Information
6.1.1 Lot Size—An inspection lot shall consist of all product
3.1 Orders for materials should include the following infor-
from a single heat.
mation:
6.1.2 Portion Size:
6.1.2.1 Ingot and Shot—The portion size shall be not less
than 1 ingot.
This specification is under the jurisdiction of ASTM Committee B-5 on Copper
6.1.2.2 Shot and Waffle—The portion size for product in
and Copper Alloys and is the direct responsibility of Subcommittee B05.05 on
shot or waffle form shall be not less than 1 lb (0.453 kg) and
Castings and Ingots for Remelting.
shall be selected to consist of an average of all sizes of product
Current edition approved January 15, 1995. Published March 1995. Originally
published as B 644-82. Last previous edition B 644-88.
in the lot.
Annual Book of ASTM Standards, Vol 14.02.
6.1.3 Selection of Portion Pieces—The individual pieces
Annual Book of ASTM Standards, Vol 03.05.
shall be randomly selected.
Available from Ameican National Standards Institute, 11 W. 42nd St., 13th
Floor, New York, NY 10036. 6.2 Chemical Analysis:
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
B644–95
TABLE 1 Chemical Requirements
Composition, max, % (unless shown as a range or minimum)
Copper-
Element Ferro Copper Phosphor Copper Silicon Copper
Nickel
Alloy 1A Alloy 2A Alloy 2B Alloy 3A Alloy 3B Alloy 4A Alloy 4B Alloy 4C Alloy 4D
Copper, min 46.5 88.7 48.2
Nickel (incl. cobalt) 48.0–51.0 0.10 0.10
Silicon 0.05 9.0–11.0 13.5–16.5 18.5–21.5 28.5–31.5
Copper + silicon + iron 99.4 min 99.4 min 99.4 min 99.4 min
Phosphorus 14.0 min 8.0–8.8
Phosphorus + copper 99.75 min 99.75 min
Iron 1.20 9.0–11.0 48.5–51.5 0.15 0.15 0.50 0.50 0.50 0.50
Aluminum 0.25 0.25 0.25 0.25
Tin 0.10 0.25 0.25 0.25 0.25
Calcium 0.15 0.15 0.15 0.15
Carbon 0.05 0.05 0.05
Sulfur 0.02
Lead 0.05
Zinc 0.10 0.10 0.10 0.10 0.10
Manganese 0.7 0.10 0.10
6.2.1 The sample for chemical analysis shall be taken from 9.1.1 Test methods used for obtaining data for the prepara-
the pieces selected in 6.1.2 in accordance with Practice E 255. tion of certification or test report shall be made available to the
The minimum weight of the composite sample shall be 150 g.
purchaser on request.
6.2.2 Instead of sampling in accordance with Practice
9.2 Chemical Composition:
E 255, the manufacturer shall have the option of sampling
9.2.1 In case of disagreement, the test method to be fol-
during the pouring of the product. At least two samples shall be
lowed for a specific element and concentration shall be as
taken for each lot poured from the same source of molten
indicated in the following table:
metal.
Element Range or Max % Method
6.2.2.1 When the manufacturer determines chemical com-
Aluminum 0.25 E 478
position during the course of manufacture, sampling of the
Carbon 0.05 E 76
finished product is not required. Copper 99.75 E 478
Iron 1.25 E 478
9.0–11.0 ISO 4748; Titrimetric
7. Number of Tests and Retests
48.5–51.5 ISO 4748; Titrimetric
7.1 Tests:
Lead 0.05 E 478; Atomic Absorption
7.1.1 Chemical Analysis—Composition shall be determined Manganese 0.10–0.7 E 62
Nickel 0.10 E 478; Photometric
as the average of results from at least two replicate determi-
incl Cobalt 48–51 E 76
nations for each element specified in Table 1 for the specified
Phosphorus 0.01–1.0 E 62
8.0–14.0 E 1371
alloy.
Silicon 0.05–32 E 54; Perchloric Acid Dehydration
7.2 Retests:
Sulfur 0.05–0.08 E 76; Direct Combustion
7.2.1 Chemical Analysis:
Tin 0.01–1 E 478 Photometric
Zinc 0.10 E 478; Atomic Absorption
7.2.1.1 When requested by the manufacturer or supplier, a
retest shall be permitted should test results obtained by the
9.2.2 The determination of calcium and magnesium, for
purchaser fail to conform with the requirements of Table 1 for
which no recognized test method is known to be published,
the specified alloy.
shall be subject to agreement between the manufacturer or
7.2.1.2 The retest shall be as directed in 7.1 except the
supplier and the purchaser.
number of replicate determinations shall be twice that normally
9.2.3 Test method(s) for the determination of elements
required by this specification. All determinations shall conform
required by contractual or purchase order agreement shall be as
to specification requirements. Failure to comply shall be cause
for lot rejection. agreed upon between the manufacturer and the purchaser.
8. Specimen Preparation
10. Significance of Numerical Limits
8.1 Chemical Composition:
10.1 For purposes of determining compliance with the
8.1.1 Preparation of the analytical specimen shall be the
specified limits for chemical composition an observed or
responsibility of the reporting laboratory.
calculated value shall be rounded as indicated in accordance
9. Test Methods
with the Rounding-Off method of Practice E 29.
9.
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