RATNA 7018W (AWS/SFA-5.5: E 7018-W1 H4)

Hydrogen Controlled Low Alloy Steel Electrode for Weathering Steels

Classification:

AWS/SFA-5.5: E 8018 W2
IS-1395: E 55BG 126Fe

Characteristics:

A Hydrogen controlled basic coated electrode for welding weathering steels. Weld metal relatively high resistance to atmospheric corrosion. Very low level of diffusible hydrogen in welds. Weld metal gives radiographic quality.

Application:

Welding of weathering steels such as SAILCOR-A & CORTEN A & B, and equivalents.
Medium tensile corrosion-resistant structural steels.
Welding of high tensile steels.

Re-Dry Condition:

Re-dry the electrode at 300°C for 1 hour before use.

ALL WELD CHEMICAL COMPOSITION %
C	Mn	Si	Cr	Ni	Cu	V
0.12 Max.	0.40–0.70	0.40–0.70	0.15–0.30	0.20–0.40	0.30–0.60	0.08 Max.

ALL WELD MECHANICAL PROPERTIES :
YS (N/mm²)	UTS (N/mm²)	EL % (l=4d)	CHARPY “V” NOTCH IMPACT AT
415 Min.	490 Min.	22 Min.	-20°C: 50–80 J

DIMENSION, CURRENT CONDITION & PACKING DATA
Size(mm) (DXL)	Size(inch) (DXL)	Current Condition (DC+/AC 70V)	No. of Pcs./pkt.	No. of Pcs./Case
2.50 / 2.40	3/32”	70–100	170	640
3.15 / 3.20	1/8”	100–140	110	440
4.00	5/32”	150–190	72	288
5.00	3/16”	200–250	50	200