Welding wire standard by German welding Society.

This welding wire standard is developed by the German welding society.

The % symbol uses the percentage weight standard.

This filling wire is flux covered wire For manual welding, Wire electrodes, Filler wires and Strip electrodes, Wire electrodes, Filler wires for under-flux welding processes.

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1. Type of welding wire

1.1 Flux-clad electrodes for manual welding Classified according to the chemical composition of the weld

1.2 Filler Rods, Filler wires and Wire electrodes are used for cover welding processes (Tick and Mick), classified according to the chemical composition of the wire.

1.3 Strip electrodes and Wire electrodes for under-fluxed welding processes categorized by wire chemical composition

2. Welding wire symbol

2.1 Letter code indicating the welding process

E = manual welding (flux covered wire)

SG = Cover gas welding (Tig and Mig)

U = weld under flux

2.2 Code of chemical ingredients of weld meat

The chemical ingredient code of the weld It is determined by the approximate number of the alloying elements, in order of Cr, Ni, Mo. For the major alloying elements, Nb and Cu, they are not determined by weight.

However, if the element’s code Mn is designated with a specific weight greater than 5%, the letter L indicates low carbon content.

2.3 Code indicating the type of flux covering the wire

R = type of rutile

B = Alkali type

M = Mixed Element

MP = high efficiency alloy wire (for iron powder)

2.4 Chemical composition codes for Strip electrodes, Wire electrodes, Filler wires, Filler Rods for shielded and under-fluxed welding processes.

The material number and chemical composition of the welding electrode

2.5 Location code for welding port

The welding position code for flux-clad wire is indicated by a number code.

2.6 Welding Current and Voltage Code

The numbered code represents the type of current, voltage and, for the use case, direct current. Identify the polarity of the welding wire.

2.7 Welding wire performance code

If the welding wire efficiency is not less than 105%, it should be assigned with a code number.

3. Examples of symbols

3.1 Flux covered wire

Manual welding flux-clad (E) wire, alloy material 18-21% Cr, 8-11% Ni ,Nb, stable element (code 199Nb) or material number 1.4554, rutile flux (R) is suitable. with every welding position Except for the down position (2) Uses 70 Volts of Ac power or DC power. Positive wire (6), welding wire efficiency 158% (160) Symbol is written as follows.

Electrode DIN 8556 – E 199 Nb R 2 6 160

or

Electrode DIN 8556 – E 1.4551 R 2 6 160

3.2 Welding wire for cover gas welding

Welding wire for TIG (SG) code X 5 Cr Ni Mo Nb 19 12 or material No. 1.4576. The symbol is written as follows.

Filler rod DIN 8556 – SGX 5 Cr Ni Mo Nb 1912

or

Filler rod DIN 8556 – SG 1.4576

Wire electrode for welding MIG (SG) code X Cr Ni Mo Nb 1912 or material No. 1.4576. The symbol can be written as follows.

Wire Electrode DIN 8556 – SGX 5 Cr Ni Mo Nb

or

Wire electrode DIN 8556 – SG 1.4576

3.3 Welding electrodes for under-flux welding

Wire Electrode for Under-fluxed (UP) welding, code X5 Cr Ni 199 or material No. 1.4302. The symbol can be written as follows.

Wire Electrode DIN 8556 – UPX5 Cr Ni 199

or

Wire Electrode DIN 8556 – UP 1.4302

4.8 Standards for flux-clad electrodes Stainless Steel JIS Z 3221 – 1989

(Stainless Steel Covered Electrodes)

This Japanese industry standard Requires stainless steel flux-covered welding wire Hereinafter referred to as “welding wires”, the chemical composition of the weld content is not less than 11% chromium and not more than 22% nickel.

1. Type of welding wire

Welding wires can be divided into types according to the chemical composition of the weld. and according to the type of power

4.9 Standard for welding rods and stainless steel coils (JIS Z 3321 – 1985)

(Stainless Steel Welding Rods and Wire)

This Japanese standard specifies that bare stainless steel wires (rods and wires) are used for tic welding, mig welding, etc.

1. Type of welding wire

Rods and wires can be divided into 19 types.

4.10 Stainless steel flux cored wire standard (JIS Z 3323 – 1989)

This Japanese industry standard Requires stainless steel flux cored wire Hereinafter referred to as “wire” (wire), it provides a welding content of not less than 11% chromium and not more than 16% nickel. It is used for both shielded and non-covered gas welding.

1. Type of welding wire

Welding electrodes can be classified according to the type of gas regulator and type of welding current.

4.11 Standard for stainless steel filament and flux For under-fluxed welding (JIS Z 3324 – 1988)

This Japanese industry standard The flux for welding under flux is not less than 11% chromium and not less than 38% nickel.

1. Type of welding wire

Welding wires can be classified according to the chemical composition.

2.Type of flux

Fluxes are classified according to the type of flux.

3. Type of weld

The weld body obtained from the combination of the welding wire and the flux. can be classified according to the chemical composition