RTM PRO GAS & WELDING TORCH

Weld Metal And Filler Metal Selection

Date: 2011-12-29 05:09 Popularity: 6376°

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-027、RTM-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.

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Weld Metal And Filler Metal Selection

Weld Metal And Filler Metal Selection

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