NeoNickel > ZERON® 100

ZERON® 100 Welding Consumables

ZERON® 100X is a Super Duplex (Austenite/Ferrite) weld consumable suitable for welding of all grades of Super Duplex stainless steel. It is designed to be used for as welded fabrication and will provide a phase balance within the range 50% +10 /- 20 %, ensuring that all corrosion and mechanical properties are optimised over most section thicknesses. It can also be used for welding of 22% Chromium and 13% Chromium steels.

Specifications to be welded

Wrought Alloys:: ZERON® 100, UNS S32760, S32750, S32550, S32520, S39274, S32950, S31803, S32205, WSt. Nr. 1.4501. ASTM A182 F55, F53
Cast Alloys:: Cast Alloys

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Composition

Element	C	Si	Mn	S	P	Ni	Cr	Mo	N	Cu	W	TYPICAL PRENW
MIN %	-	-	-	-	-	9.0	24.0	3.0	0.20	0.5	0.5	42
MAX %	0.03	1.0	1.0	0.03	0.03	10.0	26.0	4.9	0.30	1.0	1.0	-

Size Availability

Availability

Product	Size Availabilityn
MIG Wiresn	0.8 mm, 1.0 mm, 1.2 mm, 1.6 mm diameter on 12.5 kg spools
TIG Wiresn	1.6 mm, 2.4 mm, 3.2 mm diameters in 10 kg packages
SAW Wires	2.4 mm diameter on 25 kg spools

Cleanliness

Good stainless steel practice is required.

Post Weld Heat Treatment

Duplex steels can only be solution annealed and quenched from 1100°C and so normally a post weld heat treatment is not required. Major casting repairs usually require a solution anneal at >1100°C followed by rapid water quench.

Sometimes and as a last resort a stress relief is required for dimensional stability and further information is available on request. It should be noted that a stress relief will reduce impact and corrosion properties.

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Typical Parameters

Process	TIG	MIG
Shielding Gas	Argon or Ar/N	Ar/He/CO2
Polarity	DC-ve	Pulsed
Voltage	12V	28V
Current	100 Amps	180 Amps
Heat Input	0.8 to 1.5 KJ/mm2	0.8 to 1.5KJ/mm2

All processing parameters are typical and should be adjusted as necessary to optimise weld quality and are dependent on product, section thickness, shielding gas and weld process. For optimum corrosion resistance in the root of pipe welds TIG welding with Ar/2%N or a derivative should be used for the root run and second pass.

Typical Properties

Base Material:: Min 0.2%PS –550 MPa, Min TS – 750MPa, Min Elongation – 25%
Weld Metal:: 0.2%PS – 550MPa, TS –760 MPa, Elongation - 20%

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