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Product Selection Guide

BOC Shielding gases - easy to choose, easy to use.

The following chart will help you choose the shielding gas best suited for your welding job considering the material to be welded, its section thickness and the process used. In case multiple gases are found to be suitable, they are mentioned in descending order of preference.

Carbon Manganese and Low-alloy steels	Austenitic Stainless Steels
Aluminium	Copper
Copper Alloys (GMA brazing)	Nickel & nickel alloys
Titanium

Material Welded : Carbon - Manganese & Low-alloy steels

Section Thickness	Welding / Cutting Process
	GMAW	GTAW	PLASMA CUTTING
Thin	Argoshield Light Specshield Ar-O2-3 (oily surfaces)	Pureshield Argon
Medium	Argoshield Universal	Pureshield Argon
Heavy	Argoshield Heavy Specshield Ar-CO2-1&2 (FCAW & QT steels)	Pureshield Argon	Pureshield Argon Specshield Ar-H2-3

Note : Section thickness : Thin = 1-4 mm, Medium = 2-12 mm, Heavy = 10 mm and above.

Material Welded : Austenitic Stainless Steels

Section Thickness	Welding / Cutting Process
	GMAW	GTAW	PLASMA CUTTING
Thin	Stainshield Plus Stainshield	Stainshield TIG Pureshield Argon	Pureshield Argon, Specshield Ar-H2-3
Medium	Stainshield Universal Stainshield Plus Stainshield	Stainshield TIG Pureshield Argon, Specshield Ar-H2-1 (mechanised welding)	Pureshield Argon, Specshield Ar-H2-3
Heavy	Stainshield Universal	Stainshield TIG Specshield Ar-H2-2 (mechanised welding)	Pureshield Argon, Specshield Ar-H2-3

Note : Section thickness : Thin = 1-4 mm, Medium = 2-12 mm, Heavy = 10 mm and above.

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Material Welded : Aluminium

Section Thickness	Welding / Cutting Process
	GMAW	GTAW	PLASMA CUTTING
Thin	Specshield Ar-He-1 Pureshield Argon	Specshield Ar-He-1 Pureshield Argon	Pureshield Argon, Specshield Ar-H2-3
Medium	Specshield Ar-He-2 Pureshield Argon	Specshield Ar-He-2 Pureshield Argon	Pureshield Argon, Specshield Ar-H2-3
Heavy	Specshield Ar-He-3 Pureshield Argon	Specshield Ar-He-3 Pureshield Argon	Pureshield Argon, Specshield Ar-H2-3

Note : Section thickness : Thin = 1-4 mm, Medium = 2-12 mm, Heavy = 10 mm and above.

Material Welded : Copper

Section Thickness	Welding / Cutting Process
	GMAW	GTAW	PLASMA CUTTING
Light	Pureshield Argon Specshield Ar-He-2	Pureshield Argon Specshield Ar-He-2	Pureshield Argon, Specshield Ar-H2-3
Heavy	Pureshield Argon Specshield Ar-He-2	Pureshield Argon Specshield Ar-He-3	Pureshield Argon, Specshield Ar-H2-3

Note : Section thickness : Light = 1-9 mm, Heavy = 10 mm and above.

Material Welded : Copper Alloys (GMA brazing)

Section Thickness	Welding / Cutting Process
	GMAW	GTAW	PLASMA CUTTING
All	Specshield Ar-O2-1	Pureshield Argon Specshield Ar-He-1	Pureshield Argon, Specshield Ar-H2-3

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Material Welded : Nickel & Nickel Alloys

Section Thickness	Welding / Cutting Process
	GMAW	GTAW	PLASMA CUTTING
All	Pureshield Argon Specshield Ar-He-1	Pureshield Argon Specshield Ar-He-1	Pureshield Argon, Specshield Ar-H2-3

Material Welded :Titanium

Section Thickness	Welding / Cutting Process
	GMAW	GTAW	PLASMA CUTTING
Light	Iolar-1 Argon, Specshield Ar-He-1	Iolar-1 Argon, Specshield Ar-He-1	Pureshield Argon, Specshield Ar-H2-3
Heavy	Iolar-1 Argon Specshield Ar-He-2	Iolar-1 Argon, Specshield Ar-He-2	Pureshield Argon, Specshield Ar-H2-3

Note : Section thickness : Light = 1-9 mm, Heavy = 10 mm and above.

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