VILCHIS 7018-A1

WELDING ROD WITH 0.5%  MOLYBDENUM TO BE USED WITH CARBON MOLYBDENUM STEEL IN BOILERS, PRESSURE VESSELS AND HIGH PRESSURE PIPES.

CLASSIFICATION A.W.S: E-7018-A1
IDENTIFICATION: GREY COATING

APPLICATIONS: It is recommended for the construction and repair of vessels and of equipment submitted to high temperatures as pipes, boilers and pressure vessels. Vilchis E-7018AI welding rod is recommended for use with the following steel A.S.T.M. ratings :  A83-59 GR.A and B, A106 -58 GR. C, A212-57 GR.A and B, A216-59 GR.WCA and WCB.A250-58, A252-59 GR.3, A266-57 GR.3, A292-59 GR.1, A306-57 GR.65-70, A336-70AI GR. F1, A356-58 GR. 2, A426-59 GR..2, A426-59 GR.CP1 and CP1S and A161 T1.

CHARACTERISTICS AND PROCEDURE: The weld seams are smooth and are free of cavities and splatter. Its Molybdenum content provides high temperature resistance (up to 500 C). Clean the joint area to remove dirt, scales, grease and rust. Keep the arc short and always use dry electrodes. In case the welding rods were wet, they should be dried for two hours between 375 to 400 C.


TENSILE RESISTANCE: 5,100 - 6,100 Kg/cm2 (72,256 TO 87,000 PSI)
ELASTIC LIMIT: 4,498 - 4,850 Kg/cm2  (63,990 TO 69,000 PSI)
ELONGATION IN 5 cm: 33%
IMPACT TEST: N/A.
BRINELL HARDNESS: 190 BHN
POSITIONS: ALL
CURRENT: AC or DC REVERSE POLARITY

FILLER METAL CHEMICAL ANALYSIS %

SIZES

AMPERAGE

C

Mn

P

S

Si

Mo

2.25 mm - 3/32"

60-85

0.07

1.08

0.03

0.03

0.6

0.53

3.25 mm - 1/8"

100-130

           

4.0 mm - 5/32"

140-180

           

5.0 mm - 3/16"

200-250