Harris Products Group Brazing Products:
High-Silver High-Silver Brazing Alloys
 
 

SAFETY-SILV® 56 - This high silver (56%) content alloy makes first quality brazes.It is free-flowing with unequaled capillary attraction and deep penetration. Ductility is high, corrosion resistance suitable for all but strong chemical applications. Offers highest elongation of silver brazing alloys. Suitable for use in the food processing industry. The silver color is an excellent match for stainless steel and silverware applications. NSF Certified to NSF C2.

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SAFETY-SILV® 40 - Ductile, free-flowing alloy offers economy, good penetration into tight connections, and medium temperature. Silver to light yellow color as in polished brass.

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SAFETY-SILV® 45 - Excellent general purpose non-toxic brazing alloy. Often specified in governmental use. Good ductility and capillary flow. Color is silver to light yellow as in polished brass.

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SAFETY-SILV® 45T - Performs like a 45% silver, cadmium-bearing alloy. Lower melting temperature than Safety-Silv 45. Excellent fillet-forming qualities. Produces high-strength, ductile joints. NSF Certified to NSF C2.

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SAFETY-SILV® 25 - A low cost, brazing filler metal with good flow properties at relatively low brazing temperature.

Flux - Use Stay-Silv white brazing flux on applications requiring normal heat; Stay-Silv black flux on heavy parts, or parts heated over a prolonged period.

Forms - 1/32", 3/64", 1/16", 3/32" and 1/8" wire diameter, bare rod, flux coated rod; in straight lengths, coil, strip, rings, other types of preforms.

Packaging:  1, 3, 5 and 50 troy oz. coil.

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Safety-Silv Filler Metals
Alloy
 Chemical Composition  Melting Range  Specifications  Wire Length
 (Inches per T.O.)
Ag Cu Zn Cd Ni Sn Solidus Liquidus AWS
A5.8		 Federal
QQB
654A		 Federal
QQB 654		 Military
MIL-B
15395A		 .031
1/32		 .047
3/64		 .062
1/16		 .093
3/32
Safety-Silv 56 56 22 17 - - 5 1145 1200 BAg-7 BAg-7 - - 260 116 65 29
Safety-Silv 40 40 30.5 29.5 - - - 1150 1350 - - - - 270 120 67 30
Safety-Silv 45 45 30 25 - - - 1250 1370 BAg-5 BAg-5 1 1 265 118 66 30
Safety-Silv 45T 45 27 25 - - 3 1195 1265 - - - - 276 123 69 31
Safety-Silv 25 25 43 30 - - 2 1265 1430 - - - - 280 124 70 31

 

Cadmium Alloy Replacement Chart
Cadmium-Bearing
Filler Metal		 % Silver Fluidity
Rating*		 Suggested Cadmium-Free Replacement % Silver Fluidity
Rating*		 Description-Comparison to Cadmium Alloy
30%
35%		 30
35		 6
7		 Safety-Silv® 25 25 6 A moderate temperature, economical, filler metal of comparable cost. The melting point is higher than the cadmium-bearing alloys, but the plastic range is an advantage in filling loose connections.
30%
35%		 - - Safety-Silv® 40 40 5 For brazing steel, brass, bronze and copper. This alloy offers a comparable temperature range to cadmium-bearing 30% and 35% with only a minor cost increase. Safety-Silv 40 produces sound joints with good ductility
45%
50%		 45
50		 9
9		 Safety-Silv® 45
Safety-Silv®45T		 45
45		 6.5
7		 These filler metals offer good joint strength and ductility at a somewhat higher temperature. The plastic range of 45 is an advantage when filling loose connections. 45T has a lower melting temperature than Safety-Silv 45
45%
50%		 - - Safety-Silv® 56 56 8 A ductile, free-flowing alloy with flow characteristics similar to cadmium-bearing 45% and 50%. Safety-Silv 56 provides excellent penetration which ensures joint strength and elongation. The silver colored braze is a good match to stainless steel.

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