VILCHIS 312
WELDING ROD WITH A SPECIALLY FORMULATED COVERING TO WELD MATERIALS WHICH ARE DIFFERENT AS WELL AS STAINLESS STEEL WITH 29% CHROMIUM AND 9% NICKEL
CLASSIFICATION A.W.S: E-312-16
APPLICATIONS: Construction and repair of machinery, templates and tools, hard manganese steel, fast steel, templates for plastic. It is also used in surface preparation for later cladding, with highly resistant carbon steel and in stainless steel joints with mild iron..

CHARACTERISTICS AND PROCEDURE: This electrode has a specially formulated covering to weld materials which are different. Vilchis 312 has all the requirements for high resistance welding which is crack free. It has been successfully used to weld carbon steel or low alloy steel with stainless steel.
The parts to be welded should be as clean as possible. If it is a large part, it should be preheated to 200 C. Keep the arc short and do not let the electrode contact the surface or choke in the weld pool. Best results are obtained with enough amperage to achieve good fusion. Avoid excessive swing. It is best to make stringer weld beads (straight). In vertical and in overhead welding, set the amperage as close to the permissible minimum as possible.


TENSILE RESISTANCE: 8,185 Kg/cm2 (120,000 PSI)
BRINELL HARDNESS: 205 BHN
ELONGATION: 25%
FERRITE No.: 30
POSITIONS: ALL
CURRENT: AC or DC REVERSE POLARITY

FILLER METAL CHEMICAL ANALYSIS %
SIZES
AMPERAGE
C
Mn
Si
Cr
Ni
2.38 mm-3/32"
50-70
0.12
1.70
0.90
29.0
9.5
3.25 mm - 1/8"
80-100
4.0 mm - 5/32"
110-130
5.0 mm - 3/16"
140-170