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ASTM

ASTM B4-79

(Specification)

Specification for Tough-Pitch Lake Copper-Refinery Shapes (Withdrawn 1980)

Specification for Tough-Pitch Lake Copper-Refinery Shapes (Withdrawn 1980)

General Information

Status
Withdrawn
ICS
77.120.30 - Copper and copper alloys
Technical Committee
B02 - Nonferrous Metals and Alloys
Current Stage
Ref Project

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ASTM B4-79 - Specification for Tough-Pitch Lake Copper-Refinery Shapes (Withdrawn 1980)ASTM B4-79 - Specification for Tough-Pitch Lake Copper-Refinery Shapes (Withdrawn 1980)
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ASTM B4-79 - Specification for Tough-Pitch Lake Copper-Refinery Shapes (Withdrawn 1980)
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Standards Content (Sample)

dUJ~ : AMERICAN NATIONAL ANSI/ ASTM B 4 - 79
'Jij 11 STANDARD
Standard Specification for
1
TOUGH-PITCH LAKE COPPER-REFINERY SHAPES
This standard is issued under the fixed designation B 4; 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.
1. Scope E 53 Chemical Analysis of Copper (Electro­
4
lytic Determination of Copper)
I. I This specification covers tough-pitch
E 54 Chemical Analysis of Special Brasses
lake copper wire bars, cakes, slabs, billets, in­
4
and Bronzes
gots, and ingot bars.
E 62 Photometric Methods for Chemical
1.2 Two types of copper are included as
4
Analysis of Copper and Copper Alloys
follows:
E 527 Recommended Practice for Number­
1.2.l Low-resistance lake copper (UNS
ing Metals and Alloys (UNS)5
Cll300, Cll400, Cl 1500, and Cl 1600*) (Sec­
tions 4 and 5).
3. Ordering Information
l .2.2 High-resistance lake copper (Sections
3.1 Orders for material under this specifica­
4 and 5).
tion shall include the following information:
1.3 Although this specification includes cer­
3.1.l Type of copper (l.2),
tain UNS designations as described in Rec­
3.1.2 If cakes, slabs, or billets are ordered for
ommended Practice E 527, these designations
electrical use, it must be so stated (Table 2),
are for cross reference only and are not speci­
3.1.3 Silver content, if desired (4. l and Note
fication requirements. Therefore, in case of
5),
conflict, this ASTM specification shall govern.
3.1.4 Shape and dimensions of each piece,
NoTE I-Low-resistance lake copper under this
and
specification corresponds to the designations
"FRHC" and "FRTP" as shown in Classification
3.1.5 Quantity.
B 224. This copper may also be used to produce
copper corresponding to designations "ATP," "STP,"
4. Chemical Requirements
"FRSTP," "DHP," "DHPS," "DPA," and "DPTE."
4.1 Copper of each type shall conform to the
NoTE 2-High-resistance lake copper under this
specification corresponds to the designation "ATP" requirements as to chemical composition pre­
as shown in Classification B 224.
scribed in Table I.
l.4 In order to be classified as lake copper, Norn 5-By agreement between the manufac­
turer and the purchaser, the addition of silver up to
the copper must originate on the northern pe­
a nominal 30 troy oz/short ton (0.102 %) will be
ninsula of Michigan, U.S.A.
considered within the specifications; silver being
NoTE 3-This specification has been drawn to
cover the peculiar trade situation that has classified
the large production of copper from this geographical
1
This specification is under the jurisdiction of ASTM
district as a product in a class by itself.
Committee B-2 on Nonferrous Metals and Alloys.
N01f,4-The values stated in U.S. customary
Current edition approved Jan. 26, 1979. Published March
units are to be regarded as the standard.
1979. Originally published as B 4 - 11. Last previous edition
B4-77.
2. Applicable Documents • New designation established in accordance with ASTM
E 527 and SAE 11086, Recommended Practice for Number­
2.l ASTM Standards:
ing Metals and Alloys (UNS).
: Annual Book of ASTM Standards, Parts 6, 7, and 44.
B 193 Test for Resistivity of Electrical Con­
2 ~ Annual Book of ASTM Standards, Parts 6 and 8.
ductor Materials
Annual Book of ASTM Standards, Part 12.
3
B 224 Classification of Coppers 'Annual Book of ASTM Standards, Parts I to 10.
17

---------------------- Page: 1 ----------------------
84
counted as copper in the chemical analysis, with no sion greater than 8 in. (203.2 mm). The weight
individual silver analysis to exceed 35 troy oz/short
of copper in ingots and ingot bars shall not
ton (0.12 %).
exceed that specified by more than IO %, but
otherwise its variation is not important.
5. Physical Requirements
5. l Electrical Resistivity-Copper of each
7. Workmanship, Finish, and Appearance
type shall conform to the requirements for
7. l Wire bars, cakes, slabs, and billets shall
electrical resistivity prescribed in Table 2.
be substantially free of shrink holes, cold sets,
NoTE 6-"Resistivity" is used in place of "con­
pits, sloppy edges, concave tops, and similar
2
ductivity." The value of 0.15328 S2,g/m at 20°C
defects in set or casting. This requirement shall
(68°F) is the International Annealed Copper Stan­
not apply to ingots or ingot bars in which
dard for the resistivity of annealed copper equal to
2
physical defects are of no consequence.
JOO% conductivity. The value of0.15694 S'J,g/m is
for annealed copper of97.66 % conductivity.
8. Specimen Preparation
6. Dimensions, Weights, and Permissible Var­
8.1 Each resistivity test specimen shall orig­
iations
inate normally as a casting of suitable size
poured during the casting period of the furnace.
6. l Standard Sizes and Shapes of Wire Bars:
6. l.l One size of mold shall be used for
...

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