S9074-AQ-GIB-010/248 Rev 1
ASTM B337
- Standard Specification for Seamless and Welded Titanium and Titanium Alloy Pipe
8-2 BRAZING FILLER METAL INFORMATION.
The following line items provide information on intended uses and corresponding brazing temperatures for the filler metals listed in this manual. This information is advisory, not mandatory. a. BAg-1 (grade VII) flows freely into tight capillary joints (small P-3a and P-3a special joints). It is not particularly susceptible to liquation. This metal contains cadmium, and the fumes it forms during brazing are toxic. Brazing temperature range 1,145 to 1,400 °F. b. BAg-1a (grade IV) is similar to BAg-1. This metal contains cadmium, and the fumes it forms during brazing are toxic. Brazing temperature range 1,175 to 1,400 °F. c. BAg-2 (grade VIII) is for general-purpose work. Care must be taken to prevent liquation. This metal contains cadmium, and the fumes it forms during brazing are toxic. Brazing temperature range 1,295 to 1,550 °F. d. BAg-3 (grade V) is suitable for 300-series corrosion-resistant steel (CRES). This metal contains cadmium, and the fumes it forms during brazing are toxic. Brazing temperature range 1,270 to 1,500 °F. e. BAg-5 (grade I) is suitable for brass. This alloy does not contain cadmium. It is better for filling wide joint clearances. Brazing temperature range 1,370 to 1,550 °F. f. BAg-7 is a cadmium-free substitute for BAg-1. Brazing temperature range 1,205 to 1,400 °F. g. BAg-8 is for copper and copper alloys, carbon steel, and nickel-based alloys. This alloy does not contain cadmium. It is very fluid. Brazing temperature range 1,435 to 1,650 °F. h. BAg-8a is suitable for brazing precipitation hardening CRES and nickel alloys when they contain minor amounts of titanium or aluminum. This alloy does not contain cadmium. Brazing temperature range 1,410 to 1,600 °F. i. BAg-9 (grade II) does not contain cadmium. Brazing temperature range 1,325 to 1,550 °F. j. BAg-10 does not contain cadmium. Brazing temperature range 1,360 to 1,550 °F. k. BAg-22 does not contain cadmium. Brazing temperature range 1,290 to 1,525 °F. l. BAg-24 is low-melting and used for low-carbon 300-series stainless steels. This alloy does not contain cadmium. Brazing temperature range 1,305 to 1,550 °F. m. BAg-35 is used to braze ferrous and nonferrous base metals. It is suitable for wider clearance joints. It is not suitable for stainless steel. This alloy does not contain cadmium. Brazing temperature of 1,390 to 1,545 °F. n. BAg-36 is low-melting and used for ferrous and nonferrous base metals. It flows freely into tight capillary joints. It is not suitable for stainless steel. This alloy does not contain cadmium. Brazing temperature of 1,251 to 1,495 °F. o. BCuP-2 is for copper and copper alloys. This alloy does not contain cadmium. Best with clearances of 0.001 to 0.003 inch. Brazing temperature range 1,350 to 1,550 °F. p. BCuP-3 is for copper and copper alloys. This alloy does not contain cadmium. Best with clearances of 0.002 to 0.005 inch. Brazing temperature range 1,325 to 1,500 °F. q. BCuP-4 is for copper and copper alloys. This alloy does not contain cadmium. Best with clearances of 0.001 to 0.003 inch. Brazing temperature range 1,275 to 1,450 °F. r. BCuP-5 (grade III) is for copper and copper alloys. This alloy does not contain cadmium. Best with clearances of 0.002 to 0.005 inch. Brazing temperature range 1,300 to 1,500 °F.
8-4
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