What are the characteristics of SHJ507 electrode

SHJ507 is J507, and the SH in front of it only indicates the manufacturer.

J507 is a low-hydrogen sodium electrode, it is an alkaline electrode, which can weld typical Q235 and other steels in structural steel, and its tensile strength is much greater than that of ordinary electrodes such as E4315, so it is generally welded steel structures with greater force or dynamic load.

The diameter of J507 electrode varies from to to, and can be welded in all positions, and the DC welding machine is selected when welding, and the polarity is reversed. Of course, if there is only an AC welder in the field, you can also use the AC welder, but the current needs to be turned on larger.

The weld forming after J507 welding is more unsightly than acid electrode, if you can use acid electrode when covering the steel structure. Deposition metal chemical composition (%)

J507 Composition C Mn Si Cr Mn P s Tensile Strength.

Content percentage 《 490MPa reference current electrode diameter mm

Select current A 70-90 90-130 130-150 150-190

SHJ507 is J507, and the SH in front of it only indicates the manufacturer.

J507 is a low-hydrogen sodium electrode, it is an alkaline electrode, can weld structural steel in Q335 or above materials, its tensile strength is much larger than E4315 and other ordinary electrodes (so do not need to be on the Q235 steel plate) because it is waste, generally welded steel structures with greater force or dynamic load. For example, the diameter of J507 welding rod of steel structure of ships and cranes is from0, can be used for full-position welding, DC welding machine is used for welding, and the polarity is reversed.

If you can't use the AC welding machine in the field, the seam quality will be more pronounced J507 welded seam forming is more ugly than acid electrode (people who can't), if you can use acid electrode when covering the steel structure. (Nonsense, ask for 507, that has 422 covers).

J507 electrode is comparable to H10MNSI and H10MN2 wire.

JL-J50 is a low alloy steel welding wire. The last two digits indicate the strength, J50 represents the strength grade of the electrode, and J50 represents the tensile strength.

is per square millimeter.

50kg J50 low alloy steel welding wire is mainly used in, grade, Q235 low carbon structural steel, grade, Q245 low carbon structural steel, grade, Q345 low alloy structural steel as welding wire for weld depositing metal filling.

Characteristics of welding wires

Welding wire is a metal welding material that is used as a filler metal or as a wire for conduction. in gas welding.

In arc welding with tungsten gas, the wire is used as a filler metal. in submerged arc welding.

In electroslag welding and other MIG/MAG arc welding, the wire is both a filler metal and a conductive electrode. The surface of the welding wire is not coated with anti-oxidation flux.

For the welding of various steels, it is extremely convenient and easy to adjust the composition and proportion of flux, and the required weld chemistry can be provided. The process performance is good, the weld forming is beautiful, and the joint protection of air slag is used to obtain good forming. Arc stabilizer is added to stabilize the arc and the melt droplet transition is uniform.

The deposition speed is fast, the production efficiency is high, and the current density of flux-cored wire is at the same welding current. Big.

The difference between J502, J506 and J507 electrodes:

1. Composition material: J502 (E5003) belongs to titanium-calcium low-alloy structural steel electrode; J506 (E5016) belongs to low-hydrogen-potassium low-alloy structural steel electrodes; J507 (E5015) belongs to low-hydrogen sodium type low-alloy structural steel electrode.

2. Welding performance: J502 can be used for non-important structures, and its welding process is good but crack resistance; J506 is a low-hydrogen potassium type electrode, which is based on low-hydrogen sodium type and adds arc stabilizer to improve the arc process performance, and can be used AC and DC power supply, but the impact performance of the weld metal has decreased.

J507 cannot weld J507 electrodes matched with Q345 degree alloy structural steel. The process performance is not as good as that of acid electrode, and short arc welding should be used when welding.

3. Applicable welding machine: J502 is suitable for AC welding machine or DC welding machine with no-load voltage not less than 70V; J506 electrode contains arc stabilizer, and AC welding machine with no-load voltage not less than 70V can be used.

J507 electrode does not contain arc stabilizer and can only use ZX5 thyristor (thyristor.

DC welding machine, ZX7 inverter DC welding machine, AX series arc welding generator welding. Ordinary silicon rectifier welding machines such as zxgzxe1 are affected by the input voltage, and the welding current fluctuates greatly, and the welding parameters cannot be finely adjusted.

It's not all alkaline electrodes. J502 (E5003), acid electrode, belongs to titanium-calcium type low-alloy structural steel electrode. J506 (E5016), alkaline electrode.

It belongs to low-hydrogen potassium type low-alloy structural steel electrode. J507 (E5015), alkaline electrode, belongs to low-hydrogen-sodium type low-alloy structural steel electrode. The above three electrodes are suitable for welding Q345 (16Mn) grade strength of low alloy steel.

What is the difference between J502 J506 J507 electrode.

Dear, hello, I'm glad to answer for you, what is the difference between J502 J506 J507 electrode Answer: The welding power supply can be AC-DC dual-purpose, J507 is an alkaline low-hydrogen electrode J422; J506 can be used for both AC and DC, and J502 is an acid electrode; J506, but the no-load voltage of the AC power supply is required to be above 90V. 506 is worse than 507 arc stability, fluoride content is more (fluoride is serious harm to the welder's body), welding power supply can be used AC; 507 can only use DC, many small factories because of the cheap AC welding machine will be used according to the electrode coating classification, their strength is 50kg, the applicable steel is the same, J501 coating is titanium oxide type, 502 is titanium calcium type, 503 ilmenite type, 504 is iron oxide type, 505 is cellulose type, 506 is low hydrogen potassium type, 507 is low hydrogen sodium type.

1 5 is an acid electrode, 6 and 7 are alkaline electrodes. 1 6 welding power supply AC or DC is OK, 507 can only be used DC. Acid electrode has strong oxidation, is not very sensitive to water, rust, etc., and has simple welding operation, but poor dehydrogenation effect, low low temperature impact performance, and poor crack resistance; Alkaline electrode has strong reducibility, is sensitive to water, rust, etc., and has a lot of welding fumes, which has the advantage of good dehydrogenation effect and good plasticity.

It has excellent low-temperature impact performance and crack resistance. J422 and J502 are acid electrodes, and the welding power supply can be used for both AC and DC; J506 and J507 are alkaline low-hydrogen electrodes; J506 can be used for both AC and DC, but the no-load voltage of AC power supply is required to be above 90V, and J507 can only be reversed by DC power supply.

J507RH is a high-toughness and low-alloy electrode with ultra-qingjinzhi low-hydrogen sodium type coating, with excellent welding process performance, good plasticity, stable low-temperature impact toughness and crack resistance to seepage of the weld metal, DC reverse connection, and good all-position welding operability.

Uses: It is used for the welding of low-alloy steel and pressure tolerant resistors, pressure pipes and other important steel structural parts with higher requirements for impact toughness.