Weld Metal And Filler Metal Selection

Date: 2011-12-29 05:09 Popularity: 3041°

Weld Metal And Filler Metal Selection

Type of Metal

O.D. X Thickness (mm)

Filler metal

Flux

Heating time (S)

Gas
consumption

Remarks

Copper + Copper

Ф32×1.2

Hard

No

<60

<3g/min

 

Brass + Copper

Ф32×1.2

Hard

Yes

<60

<3g/min

 

Brass + Brass

Ф40×2

Hard

Yes

<70

<3g/min

 

Copper + Stainless steel

Ф32×2

Soft

No

<20

<3g/min

Flux-cored wire

Copper + Carbon steel

Ф32×3

Soft

No

<30

<3g/min

Flux-cored wire

Stainless steel + Carbon steel

Ф32×3

Soft

No

<30

<3g/min

Flux-cored wire

Table 1: Weld Metal and Filler Metal Selection
( RTM-027RTM-1S & RTM-1 )          

Type of Metal

O.D. X Thickness (mm)

Filler metal

Flux

Heating time
(S)

Gas
consumption

Remarks

Copper +Copper

Ф45×1.5

Hard

No

<50

<6g/min

 

Copper +Brass

Ф80×2

Hard

Yes

<70

<6g/min

 

Brass + Brass

Ф100×3.5

Hard

Yes

<100

<6g/min

 

Copper +Stainless steel

Ф100×3.5

Soft

Yes

<40

<6g/min

Flux-cored wire

Copper + Carbon steel

Ф100×3.5

Soft

No

<50

<6g/min

Flux-cored wire

Stainless steel + Carbon steel

Ф100×4

Soft

No

<70

<6g/min

Flux-cored wire

Table 2 : Weld Metal and Filler Metal Selection
( RTM-2 )
Note:
1, Hard filler metal is that of melting point above 450℃. Soft filler metal is that of melting point below 450℃.
2, The heating time on the table is just for reference. It is relevant to welding environment, weld metal length, thermal conditions, and technical level of the operators.
3, When welding the metal with large diameter, wall thickness, or fast thermal conditions, in order to increase welding speed and get high-quality welded joints, the appropriate insulation measurement should be used(wrapped with insulation material, auxiliary heating , etc.). Meanwhile, please use MAPP torch RTM-2 produced by RTM® company. If necessary, using two torches, one is for temperature protection, the other is for welding.