Sümer Gaz

VARIGON® — Argon–hydrogen/helium mixtures

Varigon H6.5

Varigon H6.5 is an argon–hydrogen mixture. Hydrogen increases heat transfer, so welding speed rises and penetration deepens; its reducing effect also limits oxidation of the weld. It is used for TIG and plasma welding of austenitic stainless steels. It is not suitable for hydrogen-sensitive materials.

Cylinder volume and filling pressure vary by application. Tell us what you need and we will determine the right class and size together.

Varigon H6.5

Technical data

Composition

  • Argon (Ar) %35
  • Hydrogen (H₂) %65
Classification DIN EN ISO 14175 — R1-ArH-65
Product family VARIGON® — Argon–hydrogen/helium mixtures

Applications

  • Shielding gas for TIG and plasma welding
  • Deep penetration on austenitic stainless steels
  • Increased welding speed

Frequently asked questions

What is Varigon H6.5?
Varigon H6.5 is an argon–hydrogen mixture. Hydrogen increases heat transfer, so welding speed rises and penetration deepens; its reducing effect also limits oxidation of the weld. It is used for TIG and plasma welding of austenitic stainless steels. It is not suitable for hydrogen-sensitive materials.
What is Varigon H6.5 composed of?
Argon (Ar) %35, Hydrogen (H₂) %65.
Where is Varigon H6.5 used?
Shielding gas for TIG and plasma welding. Deep penetration on austenitic stainless steels. Increased welding speed.
Which standard classifies Varigon H6.5?
DIN EN ISO 14175 — R1-ArH-65
Which cylinder and package options are available for Varigon H6.5?
Sümer Gaz supplies Varigon H6.5 in the following options: 67KL (11.98 m³, Cylinder (50 Litre)).
How do I order Varigon H6.5?
Order through the quotation form or by calling +90 216 592 04 03. Delivery area: the Anatolian side of Istanbul. Pricing depends on quantity and the cylinder return arrangement.

VARIGON® — Argon–hydrogen/helium mixtures — family — other gases

See the full gas guide →

Request a quote

Let’s determine the right gas and the right supply plan for your facility.

Tell us what you need; we will prepare a solution covering gas type, cylinder size and delivery frequency.

Message us on WhatsApp