YST253 "bi-metal cast iron electrode 

 Description: YST253 xing graphite base coating, high-conductivity metal welding dual-core, this core allows AC welding, DC. When using the AC or in the difficult current conditions, can completely eliminate the possibility of overheating electrode (this phenomenon is common in iron-nickel alloys are common.) 

 Purpose: The iron rod and components for all types of repairs can also be used for cast iron and steel. 

 Base material: gray iron, malleable iron, ductile iron. 

 NFA: FGL 150 to FGL 400 FGS 400-12 to FGS 700-3 

 MN 350-10 to MN 650-3 S-NC20-2 

 DIN: GG-15 to GG-40 GGG-40 to GGG-70 

 GTS-35 to GTS-65 GGG-NiCr20-2 

 ASTM: A48Class 25B to 60B A536 Grade 60-100 

 A439 Type D-2 

 Mechanical Properties: 

 General results of the pilot project 

 Tensile strength σb (MPa) 450-550 

 Yield strength σs MPa)> 300 

 Elongation δ5 (%)> 15 

 Hardness (HB) 220 



 Chemical composition (%): 

 C Si Mn Fe Ni 

 Margin 1.3 0.8 0.3 55 



 Packaging data: 

 Standard 

 Quasi- 

 Package 

 Installation dimensions (mm) 2.5 × 350 3.2 × 350 4.0 × 350 

 Number of 444 per bag 

 Each package (Lbs) 11 11 11 

 Carton Weight (Lbs) 44 44 44 



 Reference current: 

 Ampere (A) 80 120 145 



 Note: 

 AC welding for all-position welding, when the need to improve the groove in the large deposition rate or in up poor, you can use the DC is connected, in some cases, the proposed short-weld welding, and immediately hammer to remove the stress.