AK-J62CF
Standard:
EN ISO ——
AWS A5.5 E9015-G
GB/T 32533 E6215-G
Characteristics and Applications: AK-J62CF is a 620MPA grade low alloy steel electrode, the coating type is basic low hydrogen sodium type, the arc stability is good, the spatter is small, the weld shape is beautiful, the penetration is moderate, the slag is easy. The deposited metal has excellent ductility and crack resistance. It is suitable for welding 600MPA grade steel such as hydropower volute and pressure pipeline, and the same grade steel such as ship, bridge and building.
Note:
1. The electrode must be baked at 380 ° C for one hour before use.
2. Impurities such as water, oil and embroidery must be removed from the surface of the welding parts.
3. Short arc narrow pass welding, the maximum swing should not exceed three times the line diameter.
Typical Chemical Composition(%):
C:≤0.10 Si:≤0.80 Mn:≥1.00 S:≤0.015 P:≤0.025 Ni: 0.60-1.20 Mo:0.10-0.40
Note: In order to meet the requirements of group G alloy, the undiluted weld metal shall be at least conducive to a minimum value in this table:
Tensile strength (MPa) : ≥620
Yield Stress (MPa) : ≥530
Elongation (%) : ≥17
Impact values (J) : ——
Diffused hydrogen content of molten metal: ≤5.0mL/100g(mercury method or thermal conductivity method)
Molten metal X-ray detection requirements: Grade I
Recommended parameters: (Polarity: DC)
2.5mm: F(H)-70-100A/ V(OH)-60-90A
3.2mm: F(H)-90-130A/ V(OH)-80-120A
4.0mm: F(H)-140-180A/ V(OH)-130-170A
5.0mm: F(H)-170-200A
