STAVITRODE A 31

DESCRIPTION & APPLICATIONS :

Niobium-molybdenum bearing Inconel electrode for joints that are heat resistant and cold-tough, usable in every position.

Typical base metals are inconel, monel, nickel and iron-nickel-chrome alloys, joined to themselves, to alloyed steels or to stainless and heat resisting steels.

Welding technique: thoroughly clean the surface first, then weld at minimum amperage with a very short arc, using a stringer bead or slight weaving. Maintain a root gap of 2 mm, and keep the V between 70 - 80°.

UNIQUE FEATURES :

Excellent out of position welding.
High temperature scaling resistance is excellent.
Even at elevated temperatures, corrosion resistance remains excellent.
Welding positions: flat, vertical up, horizontal, overhead.

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Product details

KEY SPECIFICATIONS :

Base elements
Ni, Cr, Mn, Fe, Nb, Mo

TYPICAL MECHANICAL PROPERTIES :

Yield strength Re N/mm²	Tensile strength Rm N/mm²	Elongation A5 %
400	600	40%

RECOMMENDED WELDING CURRENT :

Diameter (mm)	Current (A)
3.15	70 - 90
4.00	100 - 140

Frequently Asked Questions

What is STAVITRODE A 31 used for?

It joins inconel, monel, nickel and iron-nickel-chrome alloys to themselves, to alloyed steels, and to stainless and heat resisting steels, producing heat resistant and cold-tough joints.

What mechanical properties can be expected from STAVITRODE A 31?

Typical values are 400 N/mm² yield strength, 600 N/mm² tensile strength and 40% elongation (A5).

How should the joint be prepared when using STAVITRODE A 31?

Clean the surface thoroughly and keep a root gap of 2 mm with the V between 70 - 80°. Weld at minimum amperage with a very short arc, using a stringer bead or a slight weaving technique.

Which amperages and welding positions suit STAVITRODE A 31?

Use 70 - 90 A for 3.15 mm and 100 - 140 A for 4.00 mm. It can be welded flat, vertical up, horizontal and overhead.