RATNA 7018 H4R (AWS A 5.1 E7018 H4R)

New vacuumed packed moisture resistant hydrogen controlled electrode

Classification: AWS A/ SFA 5.1 E 7018 H4R

IS 814 : EB 5426H3JX

Characteristics:

Truly the first indigenous moisture resistant, hydrogen controlled, vacuum packed, basic coated electrode which is welder friendly and is recommended forWelding of mild and medium carbon steel, high strength steel, cast steel and problematic steels. The electrode is vacuum packed and hence does not require expensive redrying at 250°C for 2 hours or a higher temperature. The weld metal is clean and has lowest level of impurities thus having unique properties of resistance to ageing.

Typical Application: All maintence applications including welding of all types of carbon-manganese steels, high tensile, heavy structures, plants and subject to static or dynamic loading. Can be used as a buffer layer before hard facing.

RE-DRY CONDITION : No need of drying. The electrodes are vacuum packed hence can be used straight on the job

ALL WELD CHEMICAL COMPOSITION %

C	Mn	Si	S	P
0.050-0.095.	0.80-1.40	0.30-0.70	0.030 Max	0.030 Max

ALL WELD MECHANICAL PROPERTIES:

YS

(N/mm²)

UTS

(N/mm²)

EL %

(l=4d)

CHARPY “V” NOTCH

IMPACT AT

450-520

520-600

24-32

-40⁰C : >60 J

DIEMENSION, CURRENT CONDITION & PACKING DATA

Size(mm) (DXL)	Size(inch) (DXL)	Current Condition (DC+/AC 70V)	Kgs/pkt.	Kgs/Case
2.50/ 2.40 X 350	3/ 32” X 14”	70-100	2	20
3.15/ 3.20 X 450	1/ 8” X 18”	100-140	2	20
4.00 X 450	5/ 32” X 18”	140-190	2	20
5.00 X 450	3/ 16” X 18”	190-240	2	20

Customer packing on request.