Golden Bridge
Golden Bridge E91T1-B3LC (JQ-YR621B3L-1 JQ-YR91B3L) Flux-Cored Welding Wire
Golden Bridge E91T1-B3LC (JQ-YR621B3L-1 JQ-YR91B3L) Flux-Cored Welding Wire
SKU:JQ-YR621B3L-1 JQ-YR91B3L-045-0011
JQ-YR621B3L-1 JQ-YR91B3L
JQ.YR621B3L-1 and JQ.YR91B3L are titanium oxide CO2 gas shielded heat-resistant steel flux-cored welding wires, which have excellent welding performance with smooth arc, low spatter level, effortless slag removal ability and excellent all-position welding performance.
The product is applicable for welding 2.5% Cr - 1% Mo low alloy heat-resistant steel (such as A335-P22 and A387Gr.22) with working temperature below 550℃. It is mainly used in the fields such as petroleum and petrochemical industry, high pressure vessel industry, steam pipeline industry and so on.
Chemical components of deposited metal (%) (shielding gas: CO2)
Item |
C |
Mn |
Si |
S |
P |
Cr |
Mo |
| Example value | 0.036 | 0.71 | 0.31 | 0.005 | 0.011 | 2.11 | 1.00 |
Mechanical properties of deposited metal (shielding gas: CO2)
Item |
Rm (MPa) |
ReL/Rp0.2 (MPa) |
A (%) |
Heat treatment |
| Example value | 700 | 620 | 21 | 690×1h |
Diffusion hydrogen content of deposited metal (thermal conductivity method): ≤10ml/100g
X-ray flaw detection requirements: Level II
X-ray flaw detection requirements: Level II
Reference current (DC+)
Diameter of welding wire (mm) |
φ1.2 |
|
| Current range (A) |
Flat welding | 120-300 |
| Upward vertical welding, overhead position welding | 120-260 | |
| Vertical down welding | 200-300 | |
| Horizontal position welding | 120-280 | |
1. The work piece shall be degreased and derusted before welding.
2. When welding, the gas flow rate is generally 20-25L/min.
3. When welding with flux-cored welding wire, the dry extension length should be 15-25mm.
4. The humidity of welding wire warehouse should be kept below 60%.
5. The welding wire without vacuum package should not be stored for more than half a year and welding wire with vacuum package should not be stored for more than a year
2. When welding, the gas flow rate is generally 20-25L/min.
3. When welding with flux-cored welding wire, the dry extension length should be 15-25mm.
4. The humidity of welding wire warehouse should be kept below 60%.
5. The welding wire without vacuum package should not be stored for more than half a year and welding wire with vacuum package should not be stored for more than a year
