What is the element content of M8N12A welding wire?

H08Mn2MOA, used for welding of low-alloy high-strength steels with high strength. In addition, according to the composition and performance requirements of low-alloy high-strength steel, elements such as Ni, Cr, V and Re can also be added to the welding wire to improve the weld performance.

Weld metals with a strength level of 590MPa mostly use MN-MO wires, such as H08MNMOA, H08MN2MOA, H10MN2MO, etc. Welds with strength class 690 780MPa mostly use MN-CR-MO, MN-NI-MO or MN-NI-CR-MO wires. When the toughness of the weld is high, Ni-containing welding wire, such as H08CrNi2MOA, can be used.

I haven't seen that I'm a liberal arts student, and I don't know this.

The elemental content of the welding wire is between the welding wire.

Anyway, it's generally 28 percent and, and 7 percent of the battalion.

I don't know much about this.

What does the wire element refer to.

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A is not a chemical element, a - high-grade and high-quality, strictly control the content of impurities! Generally pronounced "gao".

A stands for quality, not an element.

A represents the material grade of the welding wire.

A is not an element, it is the meaning of high-grade steel, that is, "high".

Hello lz.

Silicon is chemically stable in nature (less reactive than carbon), and silicate, silicon oxide is more insoluble.

These all determine that silicon is difficult to be absorbed by cells and is a trace element in cells.

With a direct reading spectrometer, you can type it out...

Send it for compositional analysis, usually spectral analysis.

A is the characteristic letter of the electrode, i.e. the category is: stainless steel electrode (Austrian).

h means "welding", connecting steel with the first letter of the Chinese pinyin capitalization of the word "welding".

08 indicates that the carbon content in the welding wire is 8%.

The mn element content is 2%.

Si denotes silicon element, content (not indicated.

Stainless steel electrodes can be divided into chromium stainless steel electrodes and chromium-nickel stainless steel electrodes, which meet the national standards in these two types of electrodes, are assessed according to the national standard GB T983-1995. Chromium stainless steel has certain corrosion resistance (oxidizing acids, organic acids, cavitation) heat resistance and corrosion resistance. It is usually selected as equipment materials for power stations, chemicals, petroleum and other equipment.

However, chromium stainless steel generally has poor weldability, so attention should be paid to the welding process, heat treatment conditions and the selection of suitable welding electrodes. Chromium-nickel stainless steel electrodes have good corrosion resistance and oxidation resistance, and are widely used in chemical, fertilizer, petroleum, and medical machinery manufacturing. In order to prevent intergranular corrosion due to heating, the welding current should not be too large, about 20% less than carbon steel electrode, the arc should not be too long, the interlayer is quickly cooled, and the narrow welding bead is appropriate.

h08mn2sia：

h means "welding", connecting steel with the first letter of the Chinese pinyin capitalization of the word "welding".

08 indicates that the carbon content in the welding wire is.

The mn element content is 2%.

Si denotes silicon element, content (not indicated.

A is the characteristic letter of the electrode, i.e. the category is: stainless steel electrode (Austrian).

H08mn2SIA, where H represents solid wire, 08 after H indicates the mass fraction of carbon, and tail A represents high-quality wire (S and P content are less than.

What standard is this way of representation?

nb+ta: 8×c~

The expression means that the content of Nb niobium is eight times that of element C and the maximum is 1%.

Difference between grade and model:

There is only one difference between the two, that is, the prescribed standards are different. The grade of welding wire or flux is named in accordance with the provisions of China's "Welding Material Product Sample", and the model of welding wire and flux is named according to the provisions of the national standard.

Significance of representation:

1. The significance of the grade of the welding wire: such as H08MN2SIA H- indicates the welding wire (solid core); 08- indicates that the carbon content is about; Mn2- means about 2% manganese; si- indicates silicon content 1%; a- indicates high quality (low sulfur and phosphorus content).

2. The significance of the model representation of the welding wire: such as ER55B2MN ER- represents the welding wire; 55- indicates that the lowest value of the weld metal is 55mpa; B2 - chemical composition code; MN - Welding wire contains MN element.

3. The significance of the grade of flux (flux for submerged arc welding): HJ HJ- indicates the melting flux for submerged arc welding The number behind indicates the chemical composition code; sj hj- indicates sintered flux for submerged arc welding The number after indicates the slag system of flux.

4. The significance of the type of flux (flux for submerged arc welding): hj h in front of hj indicates flux for submerged arc welding, and h in the back indicates the grade of welding wire.