AWS B2.3-B2.3M:2018 pdf download.Specification for Soldering Procedure and Performance Qualification
1.1 Scope. This specification provides the requirements for qualification of soldering procedure specifications. This specification also provides requirements for the performance qualification of solderers and soldering operators and is intended for use where referenced by a product standard or contract document. This specification is not applicable to the soldering of electrical or electronic components, including connections and terminations.
Employers shall be responsible for the soldering done by their organization, including the use of qualified soldering pro-cedures, qualified solderers, and qualified soldering operators. It is the Employer' s responsibility to assure that soldering procedure specifications meet any additional requirements of the Referencing Document. Each Employer shall maintain the applicable soldering procedure specifications, soldering procedure qualification records, and soldering performance qualification records.
When not otherwise specified by the Referencing Document, the edition of the specification to be used should be estab-lished in accordance with the following:
(1) Editions may be used at any time after the effective date of issue.
(2) Latest edition of this document should be used for new contracts.
(3) Editions established by contract date may be used during the entire term of the contract, or the provisions of later editions may be used when agreed upon by the contracting parties.
This document is intended primarily for use with the following soldering processes:
(1) Torch soldering (TS)
(2) Furmace soldering (FS)
(3) Induction soldering (IS)
(4) Resistance soldering (RS)
(5) Dip soldering (DS)
(6) lron soldering (INS)
(7) Infrared soldering (IRS)
1.1.1 Base Metals. The grouping of base metals by Base Metal Number (BM No.) in Table B.1 has been made on the basis of metallurgical compatibility, chemical composition, and solderability to decrease the number of required solder-ing qualifications. The grouping does not imply that base metals may be indiscriminately substituted within the same BM No. without consideration of their applicability. For some materials or combinations of materials, additional tests may be required by the procuring activity or the design engineer.
Base metals are identified by their ASTM,' ABS,2 or UNS3 designations. Cross reference specifications, listed in the Unified Numbering System for Metals and Alloys opposite a given UNS No., are included in the same BM No. group as the given UNS Number.
1.1.2 Filler Metals. The soldering compositions of ASTM B32 and ASTM B907 are provided in Tables A.5 through A.8 of this specification. Solder compositions are grouped by filler metal number (FM No.) in this standard on the basis of chemical composition to decrease the number of required soldering qualifications. The grouping does not imply that filler metals may be indiscriminately substituted within the same FM No. without consideration of their applicability.ASTM B32, Standard Specification for Solder Metal, and ASTM B907, Standard Specification for Zinc, Tin, and Cad-mium Base Alloys used as Solders, provide detailed requirements and general applicability of fller metals.AWS B2.3-B2.3M pdf download.