Q:H13 what kind of welding rod is used for steel welding?

H13 steel electrodeH13 steel is C-Cr-Mo-Si-V steel, which is widely used in the world. At the same time, many scholars in various countries have conducted extensive research on it, and explored the improvement of chemical composition.H13 steel is C-Cr-Mo-Si-V steel, which is widely used in the world. At the same time, many scholars in various countries have conducted extensive research on it, and explored the improvement of chemical composition. Steel is widely used and has excellent properties, mainly determined by the chemical composition of steel. Of course, impurities in steel must be reduced. Data show that when Rm is at 1550MPa, the sulfur content of the material drops from 0.005% to 0.003%, which increases the impact toughness by about 13J. Obviously, the NADCA 207-2003 standard provides: (premium) H13 steel grade sulfur content less than 0.005%, while the super (superior) should be less than 0.003%S and 0.015%P. The composition of H13 steel is analyzed below.

Q:12 chromium vanadium molybdenum with what electrode?

R312 welding rod or welding wire, model is E5503-B2-V,Or R317 electrode or wire, the model is E5515-B2-V.

Q:How to calculate the amount of electrode used in pipe welding?

According to the wall thickness of the pipe and the groove at the butt joint, the weld height is calculated, and the sectional area is calculated. According to the circumference of the pipe, the volume of a weld is calculated. The volume of the corresponding welding wire is the amount of the weldIt can also be multiplied by the number of welds and the amount of each opening. The dosage of the cut can be calculated by the quota method or the volume method. Generally, a ton of steel has an average number of electrodes.

Q:Commonly known as "white steel electrode" what does it mean?

Is used for welding of stainless steel welding rod, welding core is made of stainless steel wire. The outside pressure is coated with coating.

Q:What does "E7016" mean? What should I pay attention to when welding? Can I weld the pressure vessel (pressure 1Mpa)?

E7016 is AWS model, the national standard model is E5016, is a common J506 low carbon steel electrode, used to weld medium carbon steel and important low alloy steel;Welding notice:1, drying before welding, drying at 350 degrees for 1 hours, with the use of baking;2, welding parts must be completely removed before welding, oil, rust, moisture and so on;3, using short arc welding, narrow welding method;It can be used for AC and DC and reverse connection at DC time.It's possible to weld pressure vessels. 1MPa is too small.

Q:Where is the difference between 422 electrode and E50 electrode? HRB335 steel cage can use 422 electrode

Difference between J422 welding rod and E50 welding rod:The strength of J422 is 420MPA, and the brand is E4303.E50 electrode strength of 50 0MPa, common E50155016, etc., equivalent to J506, J507, J is the electrode brand, Chinese knot Jie (structural steel) of the first spell. The parameters behind the letter include strength, skin, power supplies and so on.E is the electrode type. E refers to the electrode, and the figure in the back is usually 4 figures, indicating 12 strength, 34 welding position and welding current type and type of coating.What is the difference between the type and grade of welding rod?The model containing strips is stipulated by the national standard, and its meanings include the type of the coating, the type of alloy, the strength, the applicable welding power, etc., and the classification is very fine. The brand of welding rod is a relatively common term formulated by manufacturers. Such as electrode model E4303, the corresponding brand is J422

Q:Air conditioning copper pipe welding problems, how to weld well, and what electrode to use?

Is the use of copper wire, welding, brazing is the longest, with the copper wire, with borax flux do. The gas heating tube to cherry red, under the solder wire, a coating will flow into, good welding.

Q:What kind of welding rod is A137?

A137 is austenitic stainless steel electrode, belonging to chromium nickel stainless steel electrode.Grade A- indicates austenitic stainless steel; 13- is the chemical composition code; 7- represents alkaline welding rod; DC power supply welding.It is used in the welding of more important corrosion resistant and 0Cr18Ni11Ti stainless steel containing titanium.

Q:How can I distinguish the basic electrode or the acid welding electrode from the welding rod number?What are the basic electrode models?What are the types of acid electrodes?

General electrode brand will see E308-15 or -16 or -17,Suffix 15 means that the electrode is alkaline, and the reverse polarity is welded;Suffix 16 means that the electrode can be an alkaline coating, or a titanium or a calcium titanium based coating for both hand and dc;The suffix 17 is a variant of the drug skin type 16, which means that the electrode is made of titanic acid type and can be used for both hand and DC purposes.The ingredients and operation characteristics of the rings 25 and 26 are similar to those of the electrode type 15 and 16. The specifications of the type 15 and 16 of the electrode type are also suitable for the type 25 and 26 of the coating types. According to the nature of the electrode coating, the electrode can be divided into two categories: acid electrode and basic electrode.Drug skin contains a large amount of acidic oxide (TiO2, SiO2, etc.) electrode, known as the "acid electrode.".The skin contains many basic oxides (CaO, Na2O, etc.) called alkaline electrode.Acid electrode can AC-DC, the welding process performance is better, but the weld mechanical properties, especially the impact toughness is poor, suitable for welding low alloy steel for low carbon steel and low strength, is the most widely used electrode.The basic electrode has strong desulfurization and dephosphorization ability, and the coating has the function of hydrogen removal. The hydrogen content of welding joint is very low, so it is also called low hydrogen type welding rod. Basic welding seam has good crack resistance and mechanical properties, but poor technology performance, general DC power supply welding, mainly used for important structures (such as boiler, pressure vessel and alloy steel welding etc.).

Q:Can the Q345A board be welded with 422 electrodes?What kind of welding is best?Thank you!

Q345 low alloy high strength steel is the former 16Mn steel