Que hàn đắp DMn-500-VD

Liên hệ

  • Welding steel having Mn content up to 12 %
  • Welded joints having hardness up to 500 HB and abrasion resistance.
  • Suitable for bucket tooth, ice crusher, bulldozer blade, etc.  
  • Unable to process or cut, possibly grind with stone

Applied standards

  • JIS: Z3251 DFMA – 250-B

Characteristics – applications: 

  • DMn-500 is the electrode having high manganese content. High deposition coefficient and abrasion resistance.
  • Suitable for welding the abraded details having hardness up to 500 HB such as bucket tooth, welding clamp, ice crusher and bulldozer blade. After welding, unable to process or cut.

Chemical composition (%):

C Mn Si P S
Required Not required ≤ 0.035 ≤ 0.035
Obtained 0.8~1.0 10 ~ 12 0.3~ 0.5 0.030 0.025

Mechanical property of weld metal:

Hardness (HB)
Obtained 450-500

Instructions for use:

  • Clean oil, grease and dust before welding
  • Dry the electrode at 200 ~350 0 C for 30 ~60 minutes before welding
  • Keep arc as soon as possible
  • Process welding edges as regulated
  • Select appropriate welding current to avoid possible defects
  • Use direct current – positive electrode for welding (DC+)
  • 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) 120~140 170~200 200~240