J607RHQG
Description:
JQ · J607RHQG is ultra-low hydrogen sodium type high toughness electrode with good welding process performance, easy arc start, soft arc, little spatter, easy slag removal, fine and beautiful welding wave forming and full position welding. Deposited metal purification, refinement is good, with good low temperature impact toughness and crack resistance, still has a high impact toughness at -60 ℃.
use:
For pressure vessel with 590N / mm2 tensile strength crack-free steel structure welding, such as: the structure of the welding of vinyl tank.
Deposited metal chemical composition (%)
| C | Mn | Si | S | P | Ni | Mo |
guarantee value | ≤0.10 | ≥0.80 | ≤0.50 | ≤0.015 | ≤0.020 | 2.00 ~ 2.70 | 0.10 ~ 0.30 |
Example value | 0.056 | 1.02 | 0.30 | 0.004 | 0.013 | 2.43 | 0.15 |
Deposited metal mechanical (580 ℃ × 2h) can
Pilot projects | Rm (N / mm 2 ) | ReL / Rp 0.2 (N / mm 2 ) | A (%) | KV 2 (J) -60 ° C |
guarantee value | ≥590 | ≥490 | ≥17 | ≥60 |
Example value | 630 | 535 | 25 | 120 |
Deposited metal diffusion hydrogen content: ≤ 2.5ml / 100g (chromatography or mercury method)
X-ray detection requirements: I-level
Reference current (DC +)
Electrode diameter (mm) | Φ3.2 | Φ4.0 | Φ5.0 |
Welding current (A) | 80 ~ 120 | 130 ~ 180 | 170 ~ 240 |
Precautions:
1. Welding before the electrode to be 350 ~ 400 ℃ baking 1.5 hours, placed in a 100 ~ 150 ℃ incubator, with the use of take.
2. Welder must be welded before the removal of rust, oil, water and other impurities.
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