High Purity Alloy

Handy & Harman manufactures a complete selection of metal joining products

North America’s Largest

The Handy & Harman Precious Metals Fabrication Group is North America’s largest supplier of brazing and soldering filler metals. We became the largest by offering a complete selection of metal joining products, comprehensive fabrication services and knowledgeable technical support.

In this brochure, we would like to introduce you to our Premabraze family of high purity, low vapor pressure alloys. Premabraze alloys are manufactured by utilizing a combination of state-of-the-art vacuum casting equipment, an ISO 9002 and OS 9000 registered quality system and highly trained personnel; ensuring the world’s highest quality metal joining materials.

For thousands of companies around the world, Handy & Harman supplies the brazing and soldering consumables that produce billions of successful joints every year. We look forward to the opportunity to serve your needs as well.

Fire assay for chemical analysis of  Handy & Harman’s Laboratory. (Circa 1950’s)

The Handy & Harman Story

Today, Handy & Harman is a widely diversified company; fabricating thousands of products for a broad spectrum of industrial users. We began our business life in 1867 as a trader of precious metals, but soon became precious metal fabricators, refiners and processors. Of special significance was the development of a major new product line: brazing filler metals and fluxes for joining metals. As early as 1905, we began supplying our customers with small quantities of customized “silver solders” used to join or repair silver articles. These solders gradually found application beyond the arts industry and were increasingly used by general industry to join all types of metals with strong, leak-tight bonds. These materials became known as "Easy-Flo®, Sil-Fos® and Handy Flux" and have been synonymous with brazing excellence for over 65 years.

Over the years, Handy & Harman technicians continued to develop several groundbreaking new product families including: the "Braze" family of alloys for cadmium-free metal joining, Trimet®, a tri-metal clad metal strip for joining mining and cutting tools, and Premabraze® high purity vacuum tube grade filler metals for electrical/electronic applications.

To meet the needs of our customers, both now and in the future, we have invested millions of dollars into our manufacturing facilities. One example of this is our recent addition of an arc emission spectrometer to measure trace impurities, ensuring our customers only the highest purity materials. This, in addition to our R&D programs, will enable us to continue to supply the highest quality, most advanced products in the industry and satisfy all your metal joining requirements now, and in the future.

Premabraze filler metals are available in strip, wire, powder, and preformed rings and shapes

High Purity Applications

Today the performance demands made on aerospace, medical, electronic and other commercial equipment are so exceptional as to require an unparalleled degree of reliability. Many of these hi-purity, hi-tech brazed assemblies can only be as reliable as their sub-components. The failure of any of which could be catastrophic.

Handy & Harman , one of the world’s leading producers and fabricators of brazing materials, has worked closely with many of these manufacturers in developing and manufacturing their Premabraze and other high purity vacuum tube grade brazing filler metals to meet today’s exceptional specifications.

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Wire drawing equipment enables us to supply our customers with exact wire diameters for precision brazing

Premabraze® High Purity Brazing Materials

In many of today’s highly specialized metal joining applications, control of various elements and impurities is critical to the success of the process. At Handy & Harman, our manufacturing equipment includes state-of-the-art vacuum melting and casting for our high purity filler metals. We are a fully integrated manufacturer of these high purity, low volatile gold, silver and palladium based alloys.

Our Premabraze and high purity alloys are defined by their impurity limits for elements that are volatile (high vapor pressure) and would out gas during the brazing cycle. These filler metals serve a variety of industries including aerospace, semi-conductor, telecommunications, electrical/electronic and medical equipment. These applications require filler materials that are free from all volatile impurities. The brazing alloys they use are required to meet or exceed the highest standards. Our Premabraze brand of brazing materials meets these stringent industry requirements.

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Computer controlled continuous casting.

Tolerances are held to +/- .005” on slitting mills.

Vacuum Processed

Premabraze filler metals are made by using only “certified” pure material. This metal is vacuum melted and cast to insure the cleanliness of the filler metal. These castings are manufactured into strip and wire products using processes developed to maintain the materials integrity throughout production. Conformance to specification is assured by chemical analysis and other performance requirements.

Manufacturing Capabilities

After casting and initial processing, these high purity metals are fabricated to several standard widths, thicknesses and diameters. However, our extensive manufacturing capabilities enable us to provide you with material sizes and shapes customized to your specific requirements. Some of these capabilities include:

Wire Drawing-Carbide and diamond dies on precision equipment produce diameters from. 187” to .005”. This enables us to provide the optimal sized material for your application. Our capabilities also include the ability to produce round, flat, square, half round, rectangular or unusual cross-sectioned material.

Strip Rolling/Slitting-Precision mills produce material thicknesses that are typically unavailable directly from the mills. Widths from 6” to .062” and thicknesses down to .001 “ are available on spools, coils, etc., depending upon your needs and production requirements.

Blanking/Ring Forming-Manufactured by high-speed machines, our rings and blanked parts are produced to customers specified requirements.

Our Thermo Elemental Arc Emission Spectrometer enables the detection of trace elements (less than 1 part per million) in high purity materials.

Quality Control

Handy & Harman Canada operates with an ISO 9002  registered quality system. In addition, we have a quality control lab with the latest in tested equipment. However, we also believe that quality cannot be tested into a product, therefore all our employees are trained in Statistical Process Control (SPC) and other quality control techniques and they are responsible for the quality of the materials they produce.

We also certify that our materials meet your specifications and independent lab certifications of analysis are also available when required.

Precision blanking equipment holds extremely tight tolerances on precision parts. Preform capabilities vary from .032” outside diameter to 4.00” and larger.

Technical Support

Handy & Harman has established a worldwide leadership role in the manufacture and marketing of Brazing and Soldering materials. At the heart of this growth and success is our commitment to Technical Support and Customer Service.

As a technical resource for hundreds of companies worldwide, customers have come to rely on us for engineering support in the areas of new product design, process development, training seminars and problem resolution. In addition, our innovative approach to customer service has earned us the reputation of a highly reliable and responsive supplier of brazing and soldering products and services.

Product

Family

Product Name

AWS

Spec.

Solidus

Liquidus

Alloy Composition

Comments

F°

C°

F°

C°

Ag

Au

Pt

Pd

Other

Pure Metals

Silver

1761

961

1761

961

99.9

Available in several grades including (99.9, 99.93, 99.95, 99.99)

Gold

1947

1064

1947

1064

99.9

Very Ductile-Wets most metals. Several grades available.

Platinum

3216

1767

3216

1767

99.9

Very high temperature-Several grades available.

Palladium

2826

1552

2826

1552

99.9

High temperature brazing of refractory metals. Several grades

available.

Product

Family

Product Name

AWS

Spec.

Solidus

Liquidus

Alloy Composition

Comments

F°

C°

F°

C°

Ag

Cu

Sn

Ni

Other

Brazing Alloys

for vacuum

applications

Braze 503

BVAg-6b

1435

779

1600

870

50

50

For electronic components where Cd and Zn are not desired.

Braze 604

BVAg-18

1115

600

1325

720

60

30

10

For vacuum tube seals-joins ferrous and nonferrous alloys.

Braze 716

BVAg-8b

1435

780

1465

795

71.5

28

0.5

For atmosphere brazing of Nickel & ferrous-based metals.

Braze 721

BVAg-8

1435

780

1435

780

72

28

For joining nonferrous electric components in vacuum.

Braze 999

BVAg-0

1761

961

1761

961

99.95

A VTG alloy for brazing ceramics to be used in semiconductors.

Product

Family

Product Name

AWS

Spec.

Solidus

Liquidus

Alloy Composition

Comments

F°

C°

F°

C°

Ag

Au

Cu

Pd

Other

Premabraze®

Alloys

Premabraze 051

1625

885

1643

895

5

75

20

Narrow melting range-good for step brazing.

Premabraze 127

BAu-3

1785

974

1885

1029

35

62

3 Ni

For Nickel, Mo, SS, Kovar®, and Mo-Mn metalized ceramics.

Premabraze 131

BVAu-4

1740

949

1740

949

82

18 Ni

For vacuum applications-joins SS, Inconnel, Kovar®, Tungsten, etc.

Premabraze 180

2246

1230

2255

1235

65

35 Co

Low penetration of substrates.

Premabraze 265

1562

850

1662

900

65

20

15

For SS, Cu, Kovar° and non Mo-Mn metallized ceramics.

Premabraze 399

BAu-1

1815

991

1860

1016

37.5

62.5

For Copper, Nickel, Kovar® and Mo-Mn metallized ceramics.

Premabraze 402

1751

955

1778

970

50

50

For Copper, Nickel, Kovar® and Mo-Mn metallized ceramics.

Premabraze 407

1814

990

1850

1010

35

65

For Copper, Nickel, Kovar® and Mo-Mn metallized ceramics.

Premabraze 408

1535

835

1553

845

20

60

20

Narrow melting range, useful in step brazing.

Premabraze 409

1670

910

1697

925

81.5

16.5

2Ni

For Cu, Ni,Mo-Mn-remains ductile. Low vapor pressure.

Premabraze 500

BVAu-7

2016

1102

2050

1121

50

25

25 Ni

High Strength and good oxidation resistance, for joining Super

Alloys.

Premabraze 540

BVAg-32

1652

900

1740

950

54

21

25

Similar to Au-Ni-lower cost and density. Doesn’t embrittle Kovar°.

Premabraze 550

1520

827

1600

871

55

30

10

5 Ni

For corrosion resistant joints-Brazing stainless steel.

Premabraze 580

BVAg-31

1515

824

1566

852

58

32

10

For Nickel, Copper, Kovar® and Mo-Mn. Good for vacuum tight

joints.

Premabraze 616

BVAg-29

1155

625

1305

705

61.5

24

14.5 In

For joining ferrous and nonferrous metals in moderate temp

vacuum.

Premabraze 631

1265

685

1346

730

63

27

10 In

Low melting, low vapor pressure. Joins ferrous and nonferrous

metals.

Premabraze 680

BVAg-30

1485

807

1490

810

68

27

5

For Kovar” and Mo-Mn seals.

Premabraze 700

BAu-6

1845

1007

1915

1046

70

8

22 Ni

For Super Alloys and stainless-high ductility and strength.

Premabraze 800

536

280

536

280

80

20 Sn

Low ductility alloy-low vapor pressure.

Premabraze 880

673

356

673

356

88

12 Ge

Low ductility alloy.

Premabraze 901

1835

1002

1950

1065

90

10

Recommended for Ni, stainless steel, Mo, W and fast cycles on Ti.

Premabraze 920

BVAu-8

2192

1200

2264

1240

92

8

Oxidation resistant filler metal for joining super alloys, Mo, Ta, etc.

Product

Family

Product Name

AWS

Spec.

Solidus

Liquidus

Alloy Composition

Comments

F°

C°

F°

C°

Ag

Au

Cu

Pd

Other

Active

Metal

Brazing

Lucanex

Brazing Paste Blended with Ti for active metal brazing of ceramics.

CERAMETiL 616

1155

625

1305

705

61

24

14.5 In

BR 616 strip coated with Ti for joining ceramics without

metallization. .

CERAMETiL 721

1435

780

1435

780

72

28

BR 721 strip coated for joining ceramics without metallization.