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„Less silver – more brazing alloys!“

This slogan describes concisely the two most powerful arguments for buying the innovative BrazeTec BlueBraze brazing alloys.

Firstly, the BrazeTec BlueBraze brazing alloys are characterised by a lower silver content at the same liquidus temperature and, on the other hand, by a lower density.

The basics - Silver brazing alloys 

Basically, the liquidus temperature of multicomponent brazing alloys containing silver decreases with increasing silver content – however, as a result the alloys are more expensive. Depending on the intended application, an optimum balance between overall process costs and raw material costs has resulted, respectively.

A reduction in the silver content to reduce costs, however, also increases the brazing temperature and results in a direct negative impact on overall processing costs (process times, energy consumption, brazing quality, post-processing).

BrazeTec BlueBraze – the future starts now!

T schneeflocke 4 HVACR-Industry

Silver content by comparison
Description
Ag
in wt.%
BrazeTec 4576 45
BrazeTec BlueBraze 3510 MoreT schneeflocke 3 35
BrazeTec 4076 40
BrazeTec BlueBraze 3010MoreT schneeflocke 3 30
BrazeTec 3476 34
BrazeTec BlueBraze 2410MoreT schneeflocke 3 24
BrazeTec 3076 30
BrazeTec BlueBraze 2010MoreT schneeflocke 3 20


T werkzeug 4 Tool manufacturing industry

Silver content by comparison
Description
Ag
in wt.%
BrazeTec 4900 49
BrazeTec 5081 50
BrazeTec BlueBraze 2810MoreT werkzeug 3 28
Sandwich brazing alloys¹
BrazeTec 49/Cu 49
BrazeTec BlueBraze 28/CuMoreT werkzeug 3 28
BrazeTec 49/Cu plus 49
BrazeTec BlueBraze 28/Cu plusMoreT werkzeug 3 28

1) The data on the silver content of sandwich brazing alloys refer only to the brazing layer.

Less silver - same temperature

With BrazeTec BlueBraze, we offer you a unique family of silver brazing materials. You save up to 21 percent silver, but benefit from the retention of important material properties, such as the liquidus temperature - you do not have to change anything regarding your processes!

T schneeflocke 4 HVACR-Industry

Liquidus temperature² by comparison
Description
Liquidus-
temp.
in °C
BrazeTec 4576 695
BrazeTec BlueBraze 3510 MoreT schneeflocke 3 700
BrazeTec 4076 725
BrazeTec BlueBraze 3010MoreT schneeflocke 3 730
BrazeTec 3476 745
BrazeTec BlueBraze 2410MoreT schneeflocke 3 750
BrazeTec 3076 760
BrazeTec BlueBraze 2010MoreT schneeflocke 3 765


T werkzeug 4 Tool manufacturing industry

Liquidus temperature² by comparison
Description
Liquidus-
temp.
in °C
BrazeTec 4900 690
BrazeTec 5081 730
BrazeTec BlueBraze 2810MoreT werkzeug 3 710
Sandwich brazing alloys¹
BrazeTec 49/Cu 710
BrazeTec BlueBraze 28/CuMoreT werkzeug 3 710
BrazeTec 49/Cu plus 710
BrazeTecBlueBraze28/Cu plusMoreT werkzeug 3 710

1) The data on the silver content of sandwich brazing alloys refer only to the brazing layer.

2) Liquidus temperature:
The liquidus temperature (upper melting point) is the upper-most temperature limit of the melting range and/or of the melting interval. Above this temperature, the alloy is completely liquid.

Lower density - more brazing alloy


Another advantage of the innovative BrazeTec BlueBraze silver brazing alloys is the lower density. This means that you have more alloy available per kilogram and thus can braze more components.

T schneeflocke 4 HVACR-Industry

Density by comparison
Description
Density
in g/cm³
BrazeTec 4576 9,1
BrazeTec BlueBraze 3510MoreT schneeflocke 3 8,6
BrazeTec 4076 9,0
BrazeTec BlueBraze 3010MoreT schneeflocke 3 8,4
BrazeTec 3476 8,9
BrazeTec BlueBraze 2410MoreT schneeflocke 3 8,4
BrazeTec 3076 8,8
BrazeTec BlueBraze 2010MoreT schneeflocke 3 8,3


T werkzeug 4 Tool manufacturing industry

Density by comparison
Description
Density
in g/cm³
BrazeTec 4900 8,9
BrazeTec 5081 9,2
BrazeTec BlueBraze 2810MoreT werkzeug 3 8,5
Sandwich brazing alloys¹  
BrazeTec 49/Cu 9,0
BrazeTec BlueBraze 28/CuMoreT werkzeug 3 8,7
BrazeTec 49/Cu plus 9,0
BrazeTec BlueBraze 28/Cu plusMoreT werkzeug 3 8,7

1) The data on the silver content of sandwich brazing alloys refer only to the brazing layer.

 

BrazeTec BlueBraze brazing alloys are available from our sales and logistics network in Hanau (Germany) worldwide.

In the medium-term, production processes will be adapted at all our sites and the necessary investments made to produce BrazeTec BlueBraze brazing alloys in Italy, China and Brazil and to distribute them directly.

 
Rods xxxx Strips xxxx  
Stab   Stab flussmittel    
Diameter:
1.5/2.0 mm
Length:
500 mm
  Thickness:
BlueBraze 2810:
0.1/0.2 mm
BlueBraze 28/Cu & 28/Cu plus:
0.25/0.3/0.4 mm

Available width:
1.0 bis 70 mm
Deviating measures upon request
   

Wires
 
Preforms
   
Draht   Formteile    
Diameter wire:
1.5/2.0 mm


Coils:
Inner diameter:
250/300 mm (Quantity: 5/10 kg)

Spools:
Inner Diameter:
218 mm (Quantity: 5/10 kg)

Inner Diameter:
60 mm (Quantity: 1 kg)
  Wire:
Rings and segments

Bent components:
upon request
 

Flux coated brazing rods
 
Brazing Fluxes
 
Draht   Formteile    
Core diameter:
1.5/2.0 mm
Length:
500 mm

Flux coating:
thin


  All fluxes as usual

Brazing fluxes
Name
DIN EN
1045
Effective
Temp.
in °C
BrazeTec h FH 10 550 – 970
BrazeTec h 28 FH 10 580 – 940
BrazeTec h 80 FH 10 550 – 850
BrazeTec h 86 FH 10 550 – 850
BrazeTec h 280 FH 10 520 – 850
BrazeTec r 1 FH 10 520 – 630
BrazeTec d 21 FH 10 520 – 760
BrazeTec d FH 10 550 – 850
BrazeTec l FH 11 490 – 730
BrazeTec spezial h FH 12 520 – 1.030

 

 

 


         

Please note these are our standard forms – many other forms are available upon request

The minimum order quantity for BrazeTec BlueBraze is 50 kg.

 

Of course, we do not intend leaving you alone with the introduction of BrazeTec BlueBraze in your production process. Whether commercially or technically - we will be there to assist you!

During the development of BrazeTec BlueBraze, extensive tests were carried out and relevant experience was gathered with the alloys. Tests have confirmed that the processing characteristics of BrazeTec BlueBraze are identical to standard brazing alloys.

We cordially invite you to attend one of our training sessions at our Brazing Center. Here you will be able to test BrazeTec BlueBraze brazing alloys under expert guidance and compare them with standard brazing alloys.

We will also support you in introducing BrazeTec BlueBraze with technical advice in the Brazing Center or on site.

Basically, BrazeTec BlueBraze can be used for the same applications as standard brazing alloys. Looking at BrazeTec BlueBraze 3510 and BrazeTec BlueBraze 2410 - replacements for BrazeTec 4576 and BrazeTec 3476 -

it is obvious that the major applications will be in the HVACR industry. These include applications such as stationary and mobile air conditioners, refrigerators, freezers, compressors, etc.

BrazeTec is a leading global manufacturer and supplier of high quality brazing alloys, brazing pastes and fluxes.

BrazeTec originated from the brazing technology group of Degussa and is now part of the globally operating materials technology Umicore Group - focusing on applications where expertise in materials science, chemistry and metallurgy is called for.

The Group generated sales of € 2.4 billion excluding metal in 2015. About 10,000 employees currently make up the workforce.

BrazeTec provides an optimal environment for stability and innovation - the perfect prerequisite for a long-term partnership.

See also "Are the BrazeTec BlueBraze brazing alloys available worldwide?"

Yes, the patent has already been filed in Europe - the global registration is in progress.  
 
 
 
Compared to standard conditions for BrazeTec 
 


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Compared to standard conditions for BrazeTec 
4576
 

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Silver brazing alloys, cadmium free in comparison: BrazeTec Bluebraze 2410 vs. Standard BrazeTec 3476

BrazeTec BlueBraze 2410

Composition in wt.%
Ag: 24 | Cu: 43.7 | Zn: 20 | Sn: 2 | Mn: 10 | Si: 0.3

Permitted impurity max. in wt.%
Al: 0.001 | Bi: 0.030 | Cd: 0.010 | P: 0.008 |
Pb: 0.025

Overall impurity max. in wt.%
0.15

Melting range acc. to ISO 17672 in °C
Not applicable, Why?

Melting range acc. to DSC measurement in °C
690 – 750

Brazing temperature min. in °C
750

Tensile strength acc. to DIN EN 12797 in MPa
on S 235: 330 | on E 295: 480

Density in g/cm³
8.4

Maximum elongation at break A 100 in %
17

Electrical conductivity in m/Ωmm²
2.4

 

Less silver
–10 wt.%









Same
temperature

More brazing alloy
+5.5 %
+3.6 m/kg
 
Less costs

Quotation

Wire/Rod Ø 1.5 mm
Standard BrazeTec 3476

Composition in wt.%
Ag: 34 | Cu: 36 | Zn: 27.5 | Sn: 2.5 | Mn: – | Si: –

Permitted impurity max. in wt.%
Al: 0.001 | Bi: 0.030 | Cd: 0.010 | P: 0.008 |
Pb: 0.025 | Si: 0.050

Overall impurity max. in wt.% 
0.15

Melting range acc. to ISO 17672 in °C
630 – 730

Melting range acc. to DSC measurement in °C
655 – 745

Brazing temperature min. in °C
745

Tensile strength acc. to DIN EN 12797 in MPa
on S 235: 360 | on E 295: 480

Density in g/cm³
8.9

Maximum elongation at break A 100 %
11

Electrical conductivity in m/Ωmm²
14.0

 

Silver brazing alloys, cadmium free in comparison: BrazeTec Bluebraze 2010 vs. Standard BrazeTec 3076

BrazeTec BlueBraze 2010

Composition in wt.%
Ag: 20 | Cu: 42.8 | Zn: 25 | Mn: 10 | Sn: – | In: 2 | Si: 0.3

Permitted impurity max. in wt.%
Al: 0.001 | Bi: 0.030 | Cd: 0.010 | P: 0.008 |
Pb: 0.025

Overall impurity max. in wt.%
0.15

Melting range acc. to ISO 17672 in °C
Not applicable, Why?

Melting range acc. to DSC measurement in °C
710 – 765

Brazing temperature min. in °C
765

Tensile strength acc. to DIN EN 12797 in MPa
on S 235: 300 | on E 295: 440

Density in g/cm&sup3
8.3

Maximum elongation at break A 100 in %
17

Electrical conductivity in m/Ωmm&sup2
2.7

 

Less silver
–10 wt.%









Same
temperature

More brazing alloy
+5.7 %
+3.9 m/kg
 
Less costs

Quotation

Wire/Rod Ø 1.5 mm
Standard BrazeTec 3076

Composition in wt.%
Ag: 30 | Cu: 36 | Zn: 32 | Mn: – | Sn: 2 | In: – | Si: –

Permitted impurity max. in wt.%
Al: 0.001 | Bi: 0.030 | Cd: 0.010 | P: 0.008 |
Pb: 0.025 | Si: 0.050

Overall impurity max. in wt.% 
0.15

Melting range acc. to ISO 17672 in °C
665 – 755

Melting range acc. to DSC measurement in °C
675 – 760

Brazing temperature min. in °C
760

Tensile strength acc. to DIN EN 12797 in MPa
on S 235: 360 | on E 295: 480

Density in g/cm&sup3
8.8

Maximum elongation at break A 100 %
11

Electrical conductivity in m/Ωmm&sup2
12.0

 

Silver brazing alloys, cadmium free in comparison: BrazeTec Bluebraze 3510 vs. Standard BrazeTec 4576

BrazeTec BlueBraze 3510

Composition in wt.%
Ag: 35 | Cu: 32.6 | Zn: 20 | Sn: 2 | Mn: 10 | Si: 0.4

Permitted impurity max. in wt.%
Al: 0.001 | Bi: 0.030 | Cd: 0.010 | P: 0.008 |
Pb: 0.025

Overall impurity max. in wt.%
0.15

Melting range acc. to ISO 17672 in °C
Not applicable, Why?

Melting range acc. to DSC measurement in °C
680 – 700

Brazing temperature min. in °C
700

Tensile strength acc. to DIN EN 12797 in MPa
on S 235: 320 | on E 295: 420

Density in g/cm³
8.6

Maximum elongation at break A 100 in %
14

Electrical conductivity in m/Ωmm²
2.4

 

Less silver
–10 wt.%









Same
temperature

More brazing alloy
+5.5 %
+3.6 m/kg
 
Less costs

Quotation

Wire/Rod Ø 1.5 mm
Standard BrazeTec 4576

Composition in wt.%
Ag: 45 | Cu: 27 | Zn: 25.5 | Sn: 2.5 | Mn: – | Si: –

Permitted impurity max. in wt.%
Al: 0.001 | Bi: 0.030 | Cd: 0.010 | P: 0.008 |
Pb: 0.025 | Si: 0.050

Overall impurity max. in wt.%
0.15

Melting range acc. to ISO 17672 in °C
640 – 680

Melting range acc. to DSC measurement in °C
645 – 695

Brazing temperature min. in °C
695

Tensile strength acc. to DIN EN 12797 in MPa
on S 235: 350 | on E 295: 430

Density in g/cm³
9.1

Maximum elongation at break A 100 in %
23

Electrical conductivity in m/Ωmm²
13.0

 

Silver brazing alloys, cadmium free in comparison: BrazeTec Bluebraze 3010 vs. Standard BrazeTec 4076

BrazeTec BlueBraze 3010

Composition in wt.%
Ag: 30 | Cu: 37.8 | Zn: 20 | Mn: 10 | Sn: 2 | Si: 0.2

Permitted impurity max. in wt.%
Al: 0.001 | Bi: 0.030 | Cd: 0.010 | P: 0.008 |
Pb: 0.025

Overall impurity max. in wt.%
0.15

Melting range acc. to ISO 17672 in °C
Not applicable, Why?

Melting range acc. to DSC measurement in °C
690 – 730

Brazing temperature min. in °C
730

Tensile strength acc. to DIN EN 12797 in MPa
on S 235: 350 | on E 295: 440

Density in g/cm³
8.4

Maximum elongation at break A 100 in %
14

Electrical conductivity in m/Ωmm²
2.4

 

Less silver
–10 wt.%









Same
temperature

More brazing alloy
+6.7 %
+4.5 m/kg
 
Less costs

Quotation

Wire/Rod Ø 1.5 mm
Standard BrazeTec 4076

Composition in wt.%
Ag: 40 | Cu: 30 | Zn: 28 | Mn: – | Sn: 2 | Si: –

Permitted impurity max. in wt.%
Al: 0.001 | Bi: 0.030 | Cd: 0.010 | P: 0.008 |
Pb: 0.025 | Si: 0.050

Overall impurity max. in wt.%
0.15

Melting range acc. to ISO 17672 in °C
650 – 710

Melting range acc. to DSC measurement in °C
665 – 725

Brazing temperature min. in °C
725

Tensile strength acc. to DIN EN 12797 in MPa
on S 235: 350 | on E 295: 430

Density in g/cm³
9.0

Maximum elongation at break A 100 in %
23

Electrical conductivity in m/Ωmm²
11.0

 

Silver brazing alloys, cadmium free in comparison: BrazeTec Bluebraze 2810 vs. Standard BrazeTec 4900

BrazeTec BlueBraze 2810

Composition in wt.%
Ag: 28 | Cu: 39.0 | Zn: 20 | Mn: 10 | Ni: 1 | In: 2

Permitted impurity max. in wt.%
Al: 0.001 | Bi: 0.030 | Cd: 0.010 | P: 0.008 |
Pb: 0.025 | Si: 0.05

Overall impurity max. in wt.%
0.15

Melting range acc. to ISO 17672 in °C
Not applicable, Why?

Melting range acc. to DSC measurement in °C
680 – 760

Brazing temperature min. in °C
710

Shear strength¹ acc. to DIN EN 12797 in MPa
> 250

Density in g/cm³
8.5

 

 

1) Measured according to BrazeTec standard, compound 1.2210 & K10

Less Silver
–21 wt. %










Same
Strength

More Brazing Alloy
+4.2 %
 
Less
Costs

Quatation

.
Standard BrazeTec 4900

Composition in wt.%
Ag: 49 | Cu: 16 | Zn: 23 | Mn: 7.5 | NI: 4.5 | In: –

Permitted impurity max. in wt.%
Al: 0.001 | Bi: 0.030 | Cd: 0.010 | P: 0.008 |
Pb: 0.025 | Si: 0.05

Overall impurity max. in wt.%
0.3

Melting range acc. to ISO 17672 in °C
680 – 705

Melting range acc. to DSC measurement in °C
680 – 705

Brazing temperature min. in °C
690

Shear strength¹ acc. to DIN EN 12797 in MPa
> 250

Density in g/cm³
8.9

 

 


Silver brazing alloys, cadmium free in comparison: BrazeTec Bluebraze 2810 vs. Standard BrazeTec 5081

BrazeTec BlueBraze 2810

Composition in wt.%
Ag: 28 | Cu: 39.0 | Zn: 20 | Mn: 10 | Ni: 1 | In: 2

Permitted impurity max. in wt.%
Al: 0.001 | Bi: 0.030 | Cd: 0.010 | P: 0.008 |
Pb: 0.025 | Si: 0.05

Overall impurity max. in wt.%
0.15

Melting range acc. to ISO 17672 in °C
Not applicable, Why?

Melting range acc. to DSC measurement in °C
680 – 760

Brazing temperature min. in °C
710

Shear strength¹ acc. to DIN EN 12797 in MPa
> 250

Density in g/cm³
8.5

 

 

1) Measured according to BrazeTec standard, compound 1.2210 & K10

Less Silver
–22 wt. %










Same
Strength

More Brazing Alloy
+7.6 %
 
Less
Costs

Quotation

.
Standard BrazeTec 5081

Composition in wt.%
Ag: 50 | Cu: 20 | Zn: 28 | Mn: – | NI: 2 | In: –

Permitted impurity max. in wt.%
Al: 0.001 | Bi: 0.030 | Cd: 0.010 | P: 0.008 |
Pb: 0.025 | Si: 0.05

Overall impurity max. in wt.%
0.3

Melting range acc. to ISO 17672 in °C
660 – 715

Melting range acc. to DSC measurement in °C
670 – 730

Brazing temperature min. in °C
730

Shear strength¹ acc. to DIN EN 12797 in MPa
> 230

Density in g/cm³
9.2

 

 


Sandwich alloys, Cd free in comparison: BrazeTec Bluebraze 28/Cu vs. Standard BrazeTec 49/Cu

BrazeTec BlueBraze 28/Cu

Composition¹ in wt.%
Ag: 28 | Cu: 39.0 | Zn: 20 | Mn: 10 | Ni: 1 | In: 2

Permitted impurity max. in wt.%
Al: 0.001 | Bi: 0.030 | Cd: 0.010 | P: 0.008 |
Pb: 0.025 | Si: 0.05

Overall impurity max. in wt.%
0.15

Melting range acc. to ISO 17672 in °C
Not applicable, Why?

Melting range acc. to DSC measurement in °C
680 – 760

Brazing temperature min. in °C
710

Shear strength² acc. to DIN EN 12797 in MPa
> 150

Density in g/cm³
8.7

 

1) The data on the silver content of sandwich brazing alloys refer only to the brazing layer.

2) Measured according to BrazeTec standard, compound 1.2210 & K10;

Less Silver
–21 wt. %










Same
Strength

More Brazing Alloy
+3.1 %
 
Less
Costs

Quotation

.
Standard BrazeTec 49/Cu

Composition¹ in wt.%
Ag: 49 | Cu: 27.5 | Zn: 20.5 | Mn: 2.5 | NI: 0.5 | In: –

Permitted impurity max. in wt.%
Al: 0.001 | Bi: 0.030 | Cd: 0.010 | P: 0.008 |
Pb: 0.025 | Si: 0.05

Overall impurity max. in wt.%
0.3

Melting range acc. to ISO 17672 in °C

Melting range acc. to DSC measurement in °C
670 – 720

Brazing temperature min. in °C
710

Shear strength² acc. to DIN EN 12797 in MPa
> 150

Density in g/cm³
9.0

 

 


Sandwich alloys, Cd free in comparison: BrazeTec Bluebraze 28/Cu plus zu Standard BrazeTec 49/Cu plus

BrazeTec BlueBraze 28/Cu plus

Composition¹ in wt.%
Ag: 28 | Cu: 39.0 | Zn: 20 | Mn: 10 | Ni: 1 | In: 2

Permitted impurity max. in wt.%
Al: 0.001 | Bi: 0.030 | Cd: 0.010 | P: 0.008 |
Pb: 0.025 | Si: 0.05

Overall impurity max. in wt.%
0.15

Melting range acc. to ISO 17672 in °C
Not applicable, Why?

Melting range acc. to DSC measurement in °C
680 – 760

Brazing temperature min. in °C
710

Shear strength² acc. to DIN EN 12797 in MPa
> 180

Density in g/cm³
8.7

 

1) The data on the silver content of sandwich brazing alloys refer only to the brazing layer.

2) Measured according to BrazeTec standard, compound 1.2210 & K10

Less Silver
–21 wt. %










Same
Strength

More Brazing Alloy
+5.5 %
 
Less
Costs

Quaotation

.
Standard BrazeTec 49/Cu plus

Composition¹ in wt.%
Ag: 49 | Cu: 27.5 | Zn: 20.5 | Mn: 2.5 | NI: 0.5 | In: –

Permitted impurity max. in wt.%
Al: 0.001 | Bi: 0.030 | Cd: 0.010 | P: 0.008 |
Pb: 0.025 | Si: 0.05

Overall impurity max. in wt.%
0.3

Melting range acc. to ISO 17672 in °C

Melting range acc. to DSC measurement in °C
670 – 720

Brazing temperature min. in °C
710

Shear strength² acc. to DIN EN 12797 in MPa
> 180

Density in g/cm³
9.0

 

 


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