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FAQ

Why not use 422 electrodes and 502 electrodes on the site? (Shanghai Kunming Railway)

J422 welding rod is lower than steel standard. The strength of J502 is the same as that of steel bar, which is the reason of using J502 welding rod.Different reinforcement materials, the electrode tensile strength is not the same. The strength of the steel bar must be the same as that of the steel bar. The strength of the welding rod once, the steel bar will appear the weld organization intensity is low and the crack; the welding rod strength is higher than the steel bar, the welding seam and the reinforcement will have the bigger peeling force, similarly will crack.Model: J422, brand: E4303 belongs to titanium calcium type low carbon structural steel welding rod. It is suitable for low carbon structural steel with welding tensile strength Q235.Model: J502: E5003, belongs to titanium calcium type low alloy structural steel welding rod. Low alloy structural steel suitable for welding tensile strength Q345 grade.

What does the electrode strip E7108 stand for?

A welding rod is made up of six parts. For example, CHE507CrNiFe13 can be split into:1. (CH) two letter, the Atlantic product code.2. (E) a letter of electrode type.3. (50) two numbers, deposited metal strength or alloy type.4. (7) a number, type of skin and type of current.5. (CrNi) 1~2 letters, additional alloy elements or electrode characteristics.6. (Fe13) letters + two numbers, nominal efficiency of welding rod.1.CH: the Atlantic product code2. electrode type: (see Table 1)Type of electrode 1E carbon steel welding rod, low alloy steel welding rodL low alloy steel welding rod for low temperatureS chromium nickel austenitic stainless steel electrodeH low alloy steel and stainless steel welding rod for heat resistingK chromium stainless steel electrodeC cast iron welding rodN nickel and nickel alloy welding rodR surfacing electrodeCu copper and copper alloy weldingDeposited metal strength and alloy type: Table 2MarknumberStrength (MPa)Major alloy typesRemarksE 42By 0.2 o = 330 B = 420(S)Mn-SiFifty= 400 = 490= 390 = 490Mn-Si (Ni)Fifty-five= 440 = 540Mn-Si-MoSixty= 490 = 590Mn-Si-Mo (Ni)Seventy= 590 = 690Mn-Si-Mo (Ni)Seventy-five= 640 = 740Mn-Si-MoMn-Si-Ni-MoEighty= 690 = 780Mn-Si-Mo-V-NiEighty-five= 740 = 830Mn-Si-Ni-Mo-V-CrH1 xMo to 0.5%Second digit (x)Represents different grades in the same type2 xMo to 0.5% Cr to 0.5%3 xMo0.5 to 1% Cr to 2%4 xMo to 1% Cr to 2.5%5 xMo to 0.5% Cr to 5%7 xMo to 1% Cr to 9%8 xMo to 1% Cr to 11%R1 xOrdinary room temperature2 xOrdinary room temperature

For who knows how to play the electrode symbol is a C with the /

Of this you can copy our go there in the bar in the symbol of intelligent ABC software also has the keyboard right click

What welding rod does 16MnDR use?

1 and 16MnDR belong to low temperature steel.2, welding rod selection grade: J507NiTiB, J507GR, J507RH, J506R, J506RH, more can.

Mainly the advantages and disadvantages of J502 welding rod performance, as well as the development status at home and abroad,

Titanium calcium electrode belongs to J422 (E4303). It has good process, stable arc, beautiful welding seam, but low impact toughness and strength. It is not suitable for welding with high structural performance requirement.J507 low hydrogen type basic welding rod, basically contrary to J422. The process is bad, the arc is unstable, only the direct reverse welding and short arc welding can be used. However, because of the strong hydrogen removal ability, hydrogen cracking and defects are not produced, and the impact toughness is high, which is suitable for welding with high structural performance requirements.Developing and checking textbooks at home and abroad

What is the welding process of duplex stainless steel 2507? What electrode?

The brand of welding rod is: 2209. The electrode must be dried before welding. The drying process is 2 hours at 250 C, and the welding rod must be insulated with electrode.

How to weld stainless steel electrode?

Eighty hours in advance drying 400 hours, the current fast welding

There are several welding electrodes in manual arc welding

1) E4303:E means welding rod, 43 means the tensile strength of deposited metal 430MPa, 0 indicates that the electrode is suitable for metal position welding, and 03 represents welding current type for AC or DC zone reverse, and the coating is titanium(2) E5015 E means welding rod, 50 means the tensile strength of deposited metal 500MPa, and 1 indicates that the electrode is suitable for all position welding. 15 indicates that the electrode is low hydrogen and sodium type, and the direct current is reverse.(3) J422 J indicates that the electrode is the structural steel welding rod, and the 42 represents the tensile strength of the weld metal 420MPa, and 2 indicates that the electrode is made of titanium calcium based leather and is AC and DC positive and negative(4) J507 J indicates that the electrode is a structural steel electrode, and 50 represents the tensile strength of the weld metal 500MPa, and 7 indicates that the electrode is of low hydrogen and sodium type and has a direct reverse connection.