GB/T 13679-2016 in English

1. Overview of the Standards

The National Standard of the People's Republic of China GB/T 13679-2016 "Manganese-based Brazing Filler Metal" specifies the classification and model, chemical composition, technical conditions, test methods and inspection rules, packaging, marking, and product quality certificates of manganese-based brazing filler metals. It is suitable for brazing filler metals used in gas-shielded furnace brazing, induction brazing, and other methods.

2. Background of Standard Revision

GB/T 13679-2016 replaces the previous GB/T 13679-1992. The main technical changes include:

• Reconfirm the validity of the standard
• Add the method and mark of solder model
• Merge the specifications and limit deviations into the "Technical Conditions" chapter
• Delete the specifications and tolerance requirements of filamentary solder
• Add the "Product Quality Certificate" requirements

4. Chemical composition requirements

Table 2 specifies the chemical composition of different models of manganese-based solder in detail:

5. Technical Conditions and Quality Control

Standard Requirements:

• Product types include strips, powders, etc. Special types need to be agreed upon by both parties.
• Dimensional tolerances must comply with the requirements of Table 3, and the thickness tolerance range is ±0.010~±0.025mm
• Appearance quality requirements: no defects that affect brazing performance, a small amount of dents, scratches, etc. are allowed

6. Implementation Suggestions

To ensure the effective implementation of the standard:

• Suppliers should establish a complete quality control system
• Users should choose appropriate models based on specific application scenarios
• Inspection agencies must conduct inspections strictly in accordance with the standard