Que hàn thép VD-9016-G

Liên hệ

  • Welding low-carbon and low-alloy steel (Ni – Mo steel)
  • Under the load up to 670 Mpa
  • Suitable for boiler, delivery pipe, etc.
  • Welded joints are ductile and endure pressure at -200
  • Easily welding at difficult positions such as 3G, 4G, etc.
  • High deposition coefficient

Applied standards

  • ASME/AWS: A5.5 E9016-G
  • EN ISO 2560-A-E50 2 Z B

Characteristics – applications: 

  • VD– 9016-G is the electrode under low-hydrogen group. Weld metal is supplemented with Nickel and Molipden content, so the welded points are ductile under high load and pressure at -200  Welding slags are easily blistered and cleaned without splashing and explosion. Metal is quickly condense, so it is easy to weld at 3G and 4G positions.
  • Suitable for welding low-carbon and low-alloy steel (Ni up to 1.4 % ; Mo up to 0.4%). Under the load of 620 ~ 680 Mpa and endurance bending strength such as basin, delivery pipe, etc.

Chemical composition (%):

C Mn Si P S Ni Mo
Required 0.05~0.1 1.0~1.5 0.3~0.75 ≤0.02 ≤0.02 0.9~1.4 0.1~0.4
Obtained 0.07 1.17 0.67 0.01 0.007 1.2 0.36

Mechanical property of weld metal:

Yield strength
(Mpa)		 Tensile strength
(Mpa)		 Elongation
(%)		 Impact value
(J)
Required ≥ 530 ≥ 620 ≥17 Not required
Obtained 540 670 27 -200C: 120

Instructions for use:

  • Clean oil, grease and dust before welding
  • Dry the electrode at 300 ~350 0 C for 30 ~60 minutes before welding
  • Process welding edges as regulated
  • Select appropriate welding current to avoid possible defects
  • Lining weld beads should use a Ø3.2 electrode.
  • Use AC or DC± power
  • Size of the electrode and used current:
Diameter (mm) Φ 3.2 Φ 4.0 Φ 5.0
Length (mm) 350 400 400
Amperage (A) Flat welding 100~140 140~180 180~220
Vertical welding & Bare welding 80~120 120~160 160~200