Low Hydrogen Electrodes

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CLASSIC LH-7016 AWS., A5.1 : E7016

Description: A basic coated low hydrogen electrode produces tough and ductile weld metal suitable for heavy sections of mild, medium and high tensile steels subjected to dynamic loading. Electrode is also suitable for cast iron

Principal Application: Joining of mild, medium tensile, micro alloyed and low alloy steel e.g. IS 2002 GR.1 & 2, IS 2062 Gr. C, IS 1875 Class 2, 2A, 3, ASTM A 633, Ship steel of A, D & E quality, Fe 440B, Fe 490B, SAIMA 410, TISTEN 52,TISTEN 55 and equivalent grades.

Welding position & Current condition: AC70/DC+

Packing : Cardboard

Typical All-Weld Mechanical Properties:

Y.S(N/mm2) U.T.S(N/mm2) Elong (%) CVN Impact
425 540 26 70 at (-30’C)

Typical Weld metal chemistry (wt. %)

C Mn Si S P
0.06
 1.20 0.35 0.025 0.025

CLASSIC LH-W AWS., A5.1 : E7016

Description: A basic medium heavy coated hydrogen controlled electrode with superior welding characteristics for welding of steels of unknown compositions and other critical applications. The electrodes can be used easily in positions. The molten slag – metal control and slag detachability are very good. Weld deposit is having high radiographic soundness.

Principal Application:Principal application: Suitable for joining of steels of unknown composition, steels containing high carbon and high sulphur, low alloy steels, welding of mild steel to high carbon steels, forge steels, repair of cast iron etc.

Welding position & Current condition: AC70/DC+

Packing : Cardboard

Typical All-Weld Mechanical Properties:

Y.S (Mpa) U.T.S (Mpa) Elong (%) CVN Impact
425 540 26 65 at (-30’C)

Typical Weld metal chemistry (wt. %)

C Mn Si S P
0.06 1.20 0.35 0.025 0.025

CLASSIC LH-7018 AWS., A5.1 : E7018

Description: A heavy coated basic – iron powder type hydrogen controlled electrode with very good operating characteristics in flat and other positions. The electrode produces a smooth arc with least spatter and highly controlled molten slag – metal weld pool. The slag detachability is very good and bead is smooth, even shaped and finally rippled. Weld deposit is more than 110% and of high radiographic soundness.

Principal Application:General fabrication, ship, heavy duty structure, earth moving equipment, rotary kiln shell, pressure vessel, boiler, blast furnace.

Welding position & Current condition: AC70/DC+

Packing : Cardboard

Typical All-Weld Mechanical Properties:

Y.S(N/mm2) U.T.S(N/mm2) Elong (%) CVN Impact
430 550 26 60 at (-30’C)

Typical Weld metal chemistry (wt. %)

C Mn Si S P
0.06 1.25 0.35 0.025 0.025

CLASSIC LH-7018 SPL AWS., A5.1 : E7018 – 1

Description: A heavy coated basic – iron powder type hydrogen controlled electrode with very good operating characteristics. The electrode produces a smooth arc with least spatter and highly controlled molten weld pool. The slag detachability is very good and bead is smooth, even shaped and finally rippled. Weld deposit is of high toughness and radiographic soundness.

Principal Application:Joining of mild, medium tensile, micro alloyed and low alloy steel e.g. IS 2002 GR.1 & 2, IS 2062 Gr. C, IS 1875 Class 2, 2A, 3, ASTM A 633, Ship steel of A, D & E quality, Fe 440B, Fe 490B, SAIMA 410, TISTEN 52,TISTEN 55 and equivalent grades and steels for crygonic applications requiring temperature upto -50’C. Suitable for welding of pressure vessels and boilers, high pressure piping jobs, heavy fabrications, cranes, girders, penstocks, root runs of heavy and restrained joints, bridges coaches, heavy machines earth moving equipment etc.

Welding position & Current condition: AC70/DC+

Packing : Cardboard

Typical All-Weld Mechanical Properties:

Y.S(N/mm2) U.T.S(N/mm2) Elong (%) CVN Impact
425 560 26 50 at (-48’C)

Typical Weld metal chemistry (wt. %)

C Mn Si S P
0.06 1.25 0.35 0.025 0.025