Que hàn thép VD-9016-B3

Liên hệ

  • Welding low-alloy and heatproof steel (Cr – Mo steel)
  • Under the load up to 660 Mpa
  • Suitable for process furnace, burner, etc.
  • Welded joints operate at 4500
  • Easily welding at difficult positions such as 3G, 4G, etc.
  • High deposition coefficient

Applied standards: 

  • ASME/AWS: A5.5 E9016-B3
  • JIS Z3223 DT2416

Characteristics – applications: 

  • VD– 9016-B3 is the electrode under the group of low hydrogen. Metal is supplemented with Cr and Mo, so the welded joints are under high load and temperature. 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-alloy steel (Cr up to 2.5 % ; Mo up to 1.2%) under 620 ~680 Mpa load, working at high temperature such as process furnace, burner, thermoelectricity, hydroelectric power, etc.
C Mn Si P S Cr Mo
Required 0.05~0.12 ≤ 0.9 ≤ 0.6 ≤0.03 ≤0.03 2.0~2.5 0.9 ~1.2
Obtained 0.07 0.7 0.4 0.02 0.004 2.2 0.92

Mechanical property of weld metal:

Yield strength
(Mpa)
Tensile strength
(Mpa)
Elongation
(%)
Impact value
(J)
Heat treatment after welding
(0C xh)
Required ≥ 530 ≥ 620 ≥17 Not required 690±15 x1
Obtained 556 661 19 690±15 x1

Instructions for use:

  • Clean oil, grease and dust before welding
  • Dry the electrode at 300 ~350 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) Ø 3.2 Ø 4.0 Ø 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