Mild Steel Welding Electrode J422 E4303
APPLICATIONS:
Used for welding important low-carbon steel structures and low-alloy steel structures with low strength grades, such as Q235, 09MnV, 09Mn2, and etc.
CHARACTERISTICS:
J422 is a rutile type electrode. Can be welding by both AC & DC power source and can be for all-position. It have excellent welding performance as stable arc, little spatter, easy slag removal and reignition-ability etc.
ATTENTION:
In generally, don't need to re-dry the electrode before welding. When it be affected with damp, should be re-dry it at 150℃-170℃ for 0.5-1 hour.
WELDING POSITIONS:
PA, PB, PC, PD, PE, PF
X-ray flaw detection: Ⅱ level
DEPOSIT COMPOSITION (Quality Score): %
|
Items |
C |
Mn |
Si |
S |
P |
Ni |
Cr |
Mo |
V |
|
Requirements |
≤0.10 |
0.32-0.55 |
≤0.30 |
≤0.030 |
≤0.035 |
≤0.30 |
≤0.20 |
≤0.30 |
≤0.08 |
|
Typical Results |
0.08 |
0.37 |
0.14 |
0.018 |
0.022 |
0.030 |
0.035 |
0.005 |
0.004 |
MECHANICAL PROPERTIES:
|
Items |
Tensile Strength Rm/MPa |
Yield Strength Rel/Rp0.2 MPa |
Elongation A/% |
Charpy V-Notch KV2(J)0℃ |
|
Requirements |
430-560 |
≥330 |
≥22 |
≥47 |
|
Typical Results |
480 |
420 |
28 |
80 |
TYPICAL OPERATING PROCEDURES: (AC,DC)
|
Diameter (mm) |
2.0 |
2.5 |
3.2 |
4.0 |
5.0 |
|
Current (A) |
40-70 |
60-90 |
90-140 |
160-210 |
220-270 |
PACKAGING:
5kgs/box, 4boxes/carton, 20kgs/carton, 50cartons/pallet. 21-26MT per 1X20" FCL.
OEM/ODM:
We support OEM/ODM and could make packaging according to your design, please contact us for detail discussion.
Shijiazhuang Tianqiao Welding Materials Co., Ltd was founded in 2007. As professional welding electrode manufacturer, we have strong technical force, complete product testing equipment so that we can keep stable product quality. Our products include kinds of welding electrodes with the brand of "Yuanqiao", "Changshan", such as low carbon steel, Iow alIoy steel, heat-resistant steels, low temperature steel, stainless steel, cast iron, hard surfacing welding electrodes and various mixed welding powder.
The products are widely used in various national economic fields, such as machinery, metallurgy, petroleum chemical industry, boiler, pressure vessel, the ships, the buildings, bridges, and so on, The products are sold to all over the country, and well received by the vast users. Our products have excellent performance, stable quality, elegant welding molding, and good slag removal, good ability to resist rust, Stomata and crack, good and stable deposited metal mechanics performance. Our products are one hundred percent exported and have sold world widely, mainly to US, Europe, South America, Australia, Africa, Middle East, Southeast Asia and etc. Our products meet customers’ warm welcome due to the excellent quality, outstanding performance and competitive price.
