open/close

According to our current knowledge, there are no restrictions when using BrazeTec BlueBraze compared to standard brazing alloys.

Components that are brazed with BrazeTec BlueBraze can be used normally under the same ambient conditions.

Due to the copper content, however, the use in ammonia-containing atmospheres is excluded.

Moreover, the components can be used in applications under conditions in the temperature range from - 200 to + 200° C without a loss in strength.


BrazeTec BlueBraze brazing alloys contain the alloying element manganese. During brazing the manganese reacts with atmospheric oxygen to form manganese dioxide, the so-called "Braunstein". This oxide is responsible for the brown discoloration of the brazed joint, which arises, but has no negative impact on the properties of the joint. The brown residue can be easily removed mechanically, however.

The brown coloration is already known from other manganese-containing brazing alloys, which so far are mainly used in the tool manufacturing industry. An example is the silver brazing alloy BrazeTec 4900 (Ag 449 according to ISO 17672) which has a manganese content of 7.5 percent by weight.

You do not have to change any process parameters in your production, as the main technical properties are unchanged compared to the standard silver brazing alloys. These are, for example, the brazing temperature (link to brazing temperature), which has a direct influence on the process costs,

or even the strength of the brazed joint. This means that BrazeTec BlueBraze brazing alloys have a definite economic advantage with otherwise identical processing

You can still use the usual fluxes when processing BrazeTec BlueBraze. Typically, the flux types FH10, FH11 and FH12 are used for applications of the BrazeTec BlueBraze brazing alloys in accordance with DIN EN 1045.

Fluxes
Description
DIN EN 1045 Operating temperature
in °C
BrazeTec h FH 10 550 – 970
BrazeTec 28 FH 10 580 – 940
BrazeTec 80 FH 10 550 – 850
BrazeTec 86 FH 10 550 – 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

The BrazeTec BlueBraze brazing alloys contain the alloying element manganese. This gives the molten alloy a light grey film in the recess.

This property is already well-known with other manganese-containing silver brazing alloys, such e.g. BrazeTec 4900, which are mainly used in the tool industry, but has no effect on the brazed joint.

All types of steel, copper and copper alloys, nickel and nickel alloys can be brazed with BrazeTec BlueBraze .

 

The BrazeTec BlueBraze can be stored quite normally. In general, dry and dust-free storage conditions are recommended.  

In principle, all typical methods can be used to heat and braze with BrazeTec BlueBraze. However, the brazing alloy contains the element zinc. This restricts the use in furnace operations as it tends to evaporate at the brazing temperature due to the high vapour pressure.

For furnace brazing, we continue to offer special silver brazing alloys such as BrazeTec 7200 and BrazeTec 6488.

The BrazeTec BlueBraze brazing alloys are characterised by an excellent wetting behaviour, which does not differ from standard brazing alloys.
The measure used to express the wetting behaviour of solders is the wetting angle α:

Different wetting angle
Wetting angle α < 90° Wetting angle α = 90° Wetting angle α > 90°
Benetzungswinkel < 90° Benetzungswinkel = 90° Benetzungswinkel > 90°

 


If α = <90° there is wetting of the base metal. A wetting angle of <30° is considered to be optimal. If α = 0° there is complete wetting, i.e. the drop of braze spreads over the metal surface to form a thin film.

If α = 90°, the drop of braze has wetted the surface, but it does not spread out.

If α > 90°, no wetting occurs.

 
 
 
Compared to standard conditions for BrazeTec 
 


More information Quotation

Address


Company*

Department

Gender*

Surename

Name*

Phone*

E-mail*

Street

Nr.

Postal code

City

Comment*mandatory

Product






 
 
 
 
 
 
Compared to standard conditions for BrazeTec 
4576
 

=
Security code. Please enter the total sum.

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

 

 


Address


Company*

Department

Gender*

Surename*

Name*

Phone*

E-mail*

Street

Nr.

Postal code

City

Comment*mandatory

Informations

Please send me your
BrazeTe BlueBraze brochures



Please contact me by

Phone E-mail

=
Security code.
Please enter the total sum.
 

Address


Company*

Department

Gender*

Surename*

Name*

Phone*

E-mail*

Street*

Nr.*

Postal code*

City*

Comment*mandatory

Traid Fair

Please send me tickets for the trade fair


Ligna, Hannover


I will visit you at the trade fair on:

Date, Approx. Time

Preferred Contact (if known)

=
Security code. Please enter the total sum.

 

Thank you!

We have received your message.

 

aim