Name: STAVITRODE A 56
Brand: Stanvac

STAVITRODE A 56

DESCRIPTION & APPLICATIONS :

Weld metal from this high build-up electrode withstands extreme compressive stresses.

Applications: underlayments on carbon and low alloy steels, or a stand alone overlay giving medium hard, tough build-ups for rails, shafts and similar components.

Microstructure: martensite with some carbides.

Welding technique: use a stringer or 3 x weave pattern, and the "whip" technique when welding vertically.

International specifications: DIN 8555 E1-UM-250 (AWS - none).

UNIQUE FEATURES :

Tough alloy that suits underlayments and medium hard overlays alike.
Machines excellently.
Does particularly well in vertical and horizontal position welding.
Welding positions: flat, horizontal, vertical up.
Current: DC reverse (+), or AC (70 OCV +).

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KEY SPECIFICATIONS :

Alloying elements in iron based alloy	Hardness (Rockwell C)	Hardness (Brinell)
C, Mn, Si, Cr, Mo	25 - 27	270

RECOMMENDED AMPERAGE SETTINGS :

Diameter (mm)	Minimum amperage (A)	Maximum amperage (A)
3.25 (1/8")	100	140
4.00 (5/32")	140	180
5.00 (3/16")	180	230

DEPOSITION RATES :

Diameter (mm)	Length (mm)	Weld metal / electrode	Electrodes per kg (lb) of weld metal	Arc time of deposition min/kg (lb)	Amperage setting
3.25 (1/8")	450 (18")	22 g (.77 oz)	44 (20)	47 (21)	120
4.00 (5/32")	450 (18")	39 g (1.33 oz)	26 (12)	39 (18)	160
5.00 (3/16")	450 (18")	65 g (2.34 oz)	15 (7)	28 (13)	205

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What is STAVITRODE A 56 used for?

It is a high build-up electrode for underlayments on carbon and low alloy steels, and also a stand alone overlay for medium hard tough build-ups on rails, shafts and similar parts exposed to extreme compressive stresses.

Can the STAVITRODE A 56 deposit be machined?

Yes. The deposit has a martensitic structure with some carbides at 25 - 27 HRC (270 Brinell) and excellent machinability.

Which current and welding positions suit STAVITRODE A 56?

Use DC reverse (+) or AC at 70 OCV, welding in the flat, horizontal or vertical up position. Set 100 - 140 A for 3.25 mm, 140 - 180 A for 4.00 mm and 180 - 230 A for 5.00 mm.

Which welding technique is advised for STAVITRODE A 56?

Weld in a stringer or 3 x weave fashion. For vertical welding, use the "whip" technique.