E(R)2553

I. APPLICATIONS:

For welding super duplex stainless steel grades chemical composition approx. 24-27% Cr, 6-9% Ni, 3-4% Mo, 0.10-0.25% N alloyed also with Cu and/or W

II. DESCRIPTION:

NT-2553 is highly suitable for welding ferritic-austenitic superduplex steels. By virtue of specific alloy composition the deposit has, in addition to high tensile strength and toughness, also excellent resistance to stress corrosion cracking and pitting corrosion. The operating temperature is -50 °C up to +250 °C. Well suited for the conditions in the offshore field.

III. TYPICAL CHEMICAL COMPOSITION OF WELD METAL (%):

C	Si	Mn	Cr	Ni	Mo	Cu	N
0.02	0.4	1.23	25.53	9.52	3.73	0.8	0.21

IV. TYPICAL MECHANICAL PROPERTIES OF WELD METAL :

Tensile Strength N/mm2 (Ksi)	Yield Point N/mm2 (Ksi)	Elongation %
760 (110)	590 (86)	28

V. SIZES AVAILABLE AND RECOMMENDED CURRENTS:

Diameter (mm)	1.6	2.4	3.2
Length (mm)	1000	1000	1000
Amps	80-110	130-160	160-200