AWS C3.6M:2016 pdf download.Specification for Furnace Brazing
1. General Requirements
1.1 Scope. This specification presents the minimum fabrication and quality requirements for the furnace brazing of materials such as steels, stainless steels, nickel, nickel alloys, copper, copper alloys, and heat- or corrosion-resistant materials as well as other materials that can be adequately furnace brazed. Note that the furnace brazing of aluminum alloys is addressed in AWS C3.7M/C3.7, Specification for Aluminum Brazing. The purpose of this specification is to standardize furnace brazing process requirements and brazed joint quality requirements for all applications requiring brazed joints of assured quality. This document establishes minimum require- ments for processes and products with a minimum of explanatory information so that sources of ambiguity are mini- mized. It assigns responsibility for the ultimate quality of the brazed product to a single organization and permits that organization to modify requirements if appropriate to the application. It requires proper documentation of any such modifications. 1.2 Units of Measurement. This standard makes use of both the International System of Units (SI) and U.S. Customary Units. The latter are shown in brackets ([ ]) or in appropriate columns in tables and figures. The measurements may not be exact equivalents; therefore each system must be used independently. 1.3 Safety. Safety and health issues and concerns are beyond the scope of this standard; some safety and health information is provided, but such issues are not fully addressed herein. Safety and Health information is available from the following sources: American Welding Society: (1) ANSI Z49.1, Safety in Welding, Cutting, and Allied Processes (2) AWS Safety and Health Fact Sheets (3) Other safety and health information on the AWS website Material or Equipment Manufacturers: (1) Safety Data Sheets supplied by the materials manufacturers (2) Operating Manuals supplied by equipment manufacturers Applicable Regulatory Agencies: (1) United States Department of Labor, Occupational Safety & Health Administration (OSHA) (2) Equivalent agencies of other countries and individual states Work performed in accordance with this standard may involve the use of materials that have been deemed hazardous, and may involve operations or equipment that may cause injury or death. This standard does not purport to address all safety and health risks that may be encountered. The user of this standard should establish an appropriate safety program to address such risks as well as to meet applicable regulatory requirements. ANSI Z49.1 should be considered when developing the safety program. See 5.6 for additional safety and health information.
3. Terms and Definitions
AWS A3.0M/A3.0, Standard Welding Terms and Definitions, Including Terms for Adhesive Bonding, Brazing, Soldering, Thermal Cutting, and Thermal Spraying, provides the basis for terminology used herein. However, the follow- ing terms and definitions are included below to accommodate usage specific to this document. braze joint. The total area, as defined by the engineering drawing, of the faying surfaces to be joined by brazing and the fillets that form at the edges of that area. braze joint proper. The total area, as defined by the engineering drawing, of the faying surfaces to be joined by brazing, excluding any fillets that form at the edges of that area. brazing procedure specification (BPS). A document specifying the required brazing variables for a specific application. brazing symbol. The symbol on the engineering drawing designating the location, class, and configuration of the brazed joint. Such symbols shall be in accordance with AWS A2.4, Standard Symbols for Welding, Brazing, and Nondestructive Examination. control sensor. A sensor connected to the furnace temperature controller, which may or may not be recording. joint dimensions. The joint length is the greater of the two dimensions of the joint parallel to the faying surfaces. The joint width is the lesser of these two dimensions of the joint. The clearance between the faying surfaces is the third dimension to be considered. lack of bond. A condition in a brazed joint where although brazing filler metal is present between the faying surfaces, the filler metal does not adhere or form a metallurgical bond with the base metal. It most commonly occurs when brazing filler metal is preplaced between contaminated faying surfaces. load sensors. Sensors that are attached to or in contact with production material, a representation of production material, or are buried in the load of production material and which supply temperature data of the production material to process instrumentation.
AWS C3.6M:2016 pdf download
