C770 C77000 Brass

Units—The values stated in either SI units or inch- pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non- conformance with the standard.

The following safety hazards caveat pertains only to the test methods portion, Section 19, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limita- tions prior to use.

Referenced Documents

1. The following documents in the current issue of the Annual Book of ASTM Standards form a part of this specifi- cation to the extent referenced herein:

2. ASTM Standards:4

   B153 Test Method for Expansion (Pin Test) of Copper and Copper Alloy Pipe and Tubing

   B154 Test Method for Mercurous Nitrate Test for 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 E8M Test Methods for Tension Testing of Metallic Materials

   [Metric] (Withdrawn 2008)5

   E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

   E53 Test Method for Determination of Copper in Unalloyed Copper by Gravimetry

   E54 Test Methods for Chemical Analysis of Special Brasses and Bronzes (Withdrawn 2002)5

   E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods) (Withdrawn 2010)5 E75 Test Methods for Chemical Analysis of Copper-Nickel

   and Copper-Nickel-Zinc Alloys (Withdrawn 2010)5

   E76 Test Methods for Chemical Analysis of Nickel-Copper Alloys (Withdrawn 2003)5

   E112 Test Methods for Determining Average Grain Size E243 Practice for Electromagnetic (Eddy Current) Examina-

   tion 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 in the

   Unified Numbering System (UNS)

3. Terminology

   Definitions:

   For definitions of terms relating to copper and copper alloys, refer to Terminology B846.

Definitions of Terms Specific to This Standard:

capable of—the test need not be performed by the producer of the material. However, should subsequent testing by the purchaser establish that the material does not meet these requirements, the material shall be subject to rejection.

Ordering Information

Include the following information when placing orders for product under this specification:

ASTM Designation and year of approval (for example, ASTM B111/B111M – 04),

Copper or Copper Alloy UNS Designation (see Table 1),

Form (tube or ferrule stock),

Temper (see Temper section),

Dimensions, outside diameter, and wall thickness,

The following options are available and should be specified at the time of placing of the order when required:

Tension Test required per ASME Boiler and Pressure Vessel Code, Mechanical Properties section.

Pressure test as an alternative to eddy current test (Nondestructive Testing Section).

If the cut ends of the tubes do not need to be deburred (Workmanship, Finish, and Appearance section).

If the product is to be subsequently welded (Table 1, Footnotes G and H).

Residual Stress Test—Ammonia Vapor Test or Mer- curous Nitrate Test (Performance Requirements Section).

For Ammonia Vapor Test, risk level (pH value) if other than 10.

Heat identification or traceability details (Number of tests and Retests section).

Certification (Certification Section).

Mill Test Report (Mill Test Report Section).

If a subsequent thermal treatment after straightening is required (Temper section).

Materials and Manufacture

Materials—The material shall be of such quality and purity that the finished product shall have the properties and characteristics prescribed in this specification.

Manufacture—The product shall be produced by pro- cesses such as casting, extrusion, drawing, annealing, straightening, trimming, and other processes which may pro- duce a seamless tube in the specified condition.

Chemical Composition

The product shall conform to the chemical requirements specified in Table 1.

These composition limits do not preclude the presence of other elements. Limits for unnamed elements may be established by agreement between manufacturer or supplier and purchaser.

Copper Alloy UNS No. C19200—Copper may be taken as the difference between the sum of all the elements analyzed and 100 %. When all the elements in Table 1 are analyzed, their sum shall be 99.8 % minimum.

For copper alloys in which copper is specified as the remainder, copper may be taken as the difference between the sum of all the elements analyzed and 100 %.

When all the elements in Table 1 are analyzed, their sum shall be as shown in the following table:

whether minimum or nominal (Dimensions and Permissible Variations Section),

Quantity—total weight or total length or number of

Copper Alloy UNS No.

Copper Plus Named Elements, % min

pieces of each size, and

If product is purchased for agencies of the U.S. Government (see the Supplementary Requirements Section).

C60800 99.5

C61300 99.8

C61400 99.5

C70400 99.5

C70600 Pipe & C70620 99.5

C71000 99.5

C71500 & C71520 99.5

C71640 99.5

C72200 99.8

Copper or Copper

Nickel,

TABLE 1 Chemical Requirements

Composition, %

Other

Alloy UNS No.

CopperA Tin Aluminum

incl Cobalt

Lead,

max

Iron Zinc Manganese Arsenic Antimony Phosphorus Chromium

Named Elements

A Copper (including silver).

max Ti.03

maxH

B This value is exclusive of silver and shall be determined by difference of “impurity total” from 100 %. “Impurity total” is defined as the sum of sulfur, silver, lead, tin, bismuth, arsenic, antimony, iron, nickel, mercury, zinc, phosphorus, selenium, tellurium, manganese, cadmium, and oxygen present in the sample.

C Impurity maximums in ppm for C10100 shall be: antimony 4, arsenic 5, bismuth 1, cadmium 1, iron 10, lead 5, manganese 0.5, mercury 1, nickel 10, oxygen 5, phosphorus 3, selenium 3, silver 25, sulfur 15, tellurium

2, tin 2, and zinc 1.

D Oxygen in C10200 shall be 10 ppm max.

E Copper plus sum of named elements shall be 99.95 % min.

F Silicon shall be 0.10 % max.

G When the product is for subsequent welding applications and is so specified by the purchaser, chromium shall be 0.05 % max, cadmium 0.05 % max, zinc 0.05 % max, and zirconium 0.05 % max.

H When the product is for subsequent welding applications, and so specified by the purchaser, zinc shall be 0.50 % max, lead 0.02 % max, phosphorus 0.02 % max, sulfur 0.02 % max, and carbon 0.05 % max.

TABLE 2 Tensile Requirements—Inch-Pound Values

NOTE 1—See Table 3 for tensile requirements—SI values.

6.2.3 For copper alloys in which zinc is specified as the remainder, either copper or zinc may be taken as the difference between the sum of all the elements analyzed and 100 %.

6.2.3.1 When all the elements in Table 1 are analyzed, their sum shall be as shown in the following table:

Tubes of Copper Alloy UNS Nos. C10100, C10200, C10300, C10800, C12000, C12200, and C14200 shall be supplied in any one of the following tempers, one of which shall be specified: (1) light-drawn (H55), (2) hard-drawn (H80), or (3) hard drawn and end annealed (HE80).

Copper Alloy UNS No.

Copper Plus Named Elements, % min