JQ-TH500-NQ-Ⅲ
JQ-TH500-NQ-Ⅲ is a submerged arc welding wire of high strength steel, which has excellent welding performance with effortless slag removal ability and optimal bead appearance.
Working with sintered-flux JQ-SJ101NQ, the product is applicable for welding weathering steel with 500MPa tensile strength.It is mainly used in the fields such as rolling stock, construction machinery and so on.
Chemical components of welding wire (%)
|
Item
|
C
|
Mn
|
Si
|
S
|
| Example value | 0.055 | 1.35 | 0.25 | 0.010 |
| Item | P | Cr | Ni | Cu |
| Example value | 0.011 | 0.35 | 0.27 | 0.26 |
Mechanical properties of deposited metal
|
Test itemCombined welding-flux
|
Rm
(MPa) |
ReL/Rp0.2
(MPa) |
A
(%) |
KV2 (J)
-40℃ |
| JQ-SJ101NQ | 568 | 466 | 29 | 90 |
Reference specification(DC )
|
Wire diameter（mm）
|
Φ2.5
|
Φ3.2
|
Φ4.0
|
Φ5.0
|
| Electric current（A） | 350~500 | 400~550 | 470~600 | 550~650 |
| Voltage（V） | 27~30 | 28~31 | 28~32 | 30~34 |
