ASTM B Standard Specification for Wire for Use In Wire-Wound Resistors. ASTM-B – Download as PDF File .pdf), Text File .txt) or read online. Non Ferrous Standard. This specification covers round wires and ribbons with controlled electrical properties made from magnetic and nonmagnetic class 1a alloys.

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Alloy Class 1 3 4 5 6 Color purple yellow red pink ivory The mean temperature coefficient of resistance referred to Copyright? Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

Permissible Variations in Electrical Resistance B — 07 ASTM International takes no position respecting the validity of any axtm rights asserted in connection with any item mentioned in this standard. Originally approved in Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. NOTE 1—When ribbon or?

ASTM-B | Standard Specification for Wire for Use In Wire-Wound Resistors | Document Center, Inc.

This slope is determined from the following equation: Caution should be exercised pending knowledge of the maximum temperature of use for the coating n267 involved. D If metric sizes are desired, 1 in.


Maximum indicates the maximum deviation from zero and the plus or minus sign the asfm of the couple. It shall be free from voids or bare spots and have a minimum of back twist.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Wire larger in diameter than sizes listed in Table 6 may be supplied on spools Table 7 or in coils depending on agreement between the manufacturer and the purchaser. To convert from pounds to kilograms multiply by 0. The electrical resistance per unit length can be determined more accurately than the dimensions of very small wire.

Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. B — 07 Standard Speci? Values shown for other classes are for information only.

To convert from inches to millimetres multiply by Asfm tension on the wire shall not exceed one half of its yield strength. B Alloy Classes 1a, 1b, 1c, 2a, 2b, 3a, 4, and 6 are designed to give a low emf versus copper. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Link to Active This link will always route to the current Active version of the standard.

Historical Version s – view previous versions of standard. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. It is the responsibility of the user of this standard to become familiar with all hazards including those identi?


Temperature Coefficient of Resistance 8. A superscript epsilon e indicates an editorial change since the last revision or reapproval. The covering shall be sufficiently closely wrapped so that, when the wire is bent around b2267 mandrel having a diameter ten times the overall diameter of the covered wire, asm only enough tension to give an even compact layer, the wrappings will not open enough to make the wire underneath visible to the unaided eye.

Each bare wire should conform to the requirements for nominal resistivity, elongation, thermal electromotive force with respect to copper, and the temperature coefficient of resistance contained in this specification.

ASTM B267 – 07(2018), Standard Specification for Wire for Use In Wire-Wound Resistors

Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Permissible Variations in Dimensions The enamel shall not be underbaked so that one turn adheres to the next on a spool. This abstract is a brief summary of the referenced standard.