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Supratherme H4R D&H

The document provides information about an electrode used for welding, including its characteristics, typical chemical and mechanical properties, advantages, moisture and hydrogen content specifications, current and packing data, and identification markings. It can be used to produce tough, ductile welds of radiographic quality in various steels and is suitable for maintenance and heavy welding applications.

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mriyazkl
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91 views1 page

Supratherme H4R D&H

The document provides information about an electrode used for welding, including its characteristics, typical chemical and mechanical properties, advantages, moisture and hydrogen content specifications, current and packing data, and identification markings. It can be used to produce tough, ductile welds of radiographic quality in various steels and is suitable for maintenance and heavy welding applications.

Uploaded by

mriyazkl
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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CODIFICATION: AWS : SFA 5.

1 E7018H4R
IS : 814 EB5426H 3 JX

CHARACTERISTICS AND APPLICATIONS:


Moisture resistant hydrogen controlled basic coated electrode for producing tough and ductile
weld of radiographic quality in boilers, pressure vessels, medium carbon steels, cast steel and
problematic steels. The weld metal is clean and has low level of impurities, thus having unique
properties. The electrode can be used in all conventional positions of welding. Some typical
applications include maintenance welding of all types of C-Mn steels, heavy tensile steels,
heavy structures, plants & equipments subjected to static or dynamic loading. Typical
Applications Include: ♦ Coaches ♦ Wagons ♦ Penstocks ♦ Boilers & Pressure vessels ♦ Earth
moving machines etc.

TYPICAL CHEMICAL COMPOSITION OF ALL WELD METAL:


Element C Mn Si S P
Percent 0.065 1.00 0.40 0.019 0.020

TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL:


UTS YS % El CVN Impact at
(MPa) (MPa) (L=4d) minus 30oC (Joules)
520 460 29.0 70

ADVANTAGE:
Electrodes are Vacuum packed, no need of drying and can be used straight on the job.

MOISTURE AS CONDITIONED : 0.30% Max.

MOISTURE AS EXPOSED : 0.40% Max.

DIFFUSIBLE HYDROGEN CONTENT: 4 ml/100 gms of weld metal Max.

CURRENT & PACKING DATA: AC / DC (+)


Size (mm) Dia x Length 6.3 x 450 5 x 450 4 x 450 3.15 x 450 2.5 x 350
Current Range (Amps) 270-350 220-280 150-180 100-135 80-100
Qty. (Pcs./Carton) 25 35 55 75 125

IDENTIFICATION MARK: NAME PRINTED

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