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NIHONWELD NSW-2594
AWS Specification: AWS A5.4 E2594-16
JIS Specification:
Other Specification:

COATED ELECTRODE FOR SUPER-DUPLEX STAINLESS STEELS

APPLICATION AND DESCRIPTION:

Coated electrode with an austenitic-ferritic microstructure (duplex – 40% ferrite). The weld metal can be applied for operation temperatures up to 250 °C and is resistant in chloride containing medias against pitting as well as crevice and stress corrosion.

For butt welding and cladding of steels and castings with austenitic – ferritic structure, of the same or similar composition, which are used for pumps, vessels, piping systems etc. attacked by chloride containing solutions. But also for impellers and other components which require hight strength combined with corrosion attack. Pitting index: > 40.

Base Materials:

 

UNS

Alloy

EN 10088

Material N°

CLI

S31803

 

X2CrNiMoN22-5-3

1.4462

URANUS 45

S32304

35N

X2CrNi23-4

1.4362

URANUS 35N

S32550

52N

G-X2CrNiMoCuN26 6 3

1.4517

URANUS 52N

 

52N+

X2CrNiMoCuN25-6-3

1.4507

URANUS 52N+

S32750

2507

X2CrNiMoN25-7-7

1.4410

 

S32760

100

X2CrNiMoCuWN25-7-4

1.4501

URANUS 70N

S32900

329

X3CrNiMoN27-5-2

1.4460

 

TYPICAL ALL WELD METAL CHEMICAL  COMPOSITION (%):

 

C

Si

Mn

Cr

Ni

Mo

Cu

N

Fe

<0.040

0.5

1.5

25.0

9.3

4.0

0.7

0.23

base

 

TYPICAL ALL WELD METAL MECHANICAL PROPERTIES:

 

Rp0,2 (MPa)

Rm (MPa)

A5(%)

KV (J)

 

720

 

850

 

25

+20°C 70

- 40°C 45

WELDING CURRENT AND INSTRUCTIONS:

 

Electrode

Ø x L (mm)

2.5 x 300

3.2 x 350

4.0 x 350

Current

( A )

50 – 75

70 – 100

90 - 150

 

Rebaking: 2-3 hours at 250-300 °C. Guide electrodes with a slight declination and weld with a short arc. Interpass temperature: < 170°C.

TEST RESULT

The information contained or otherwise referenced herein is presented only as “typical” without guarantee or warranty, and Industrial Welding Corporation expressly disclaims any liability incurred from any reliance thereon. Typical data and Test results for mechanical properties, deposit or electrode composition and other properties were obtained from a weld produced and tested according to prescribed standards, and should not be assumed to be the expected results in a particular application or weldment. Actual results will vary depending on many factors, including, but not limited to, weld procedure, plate chemistry and temperature, weldment design and fabrication methods. Users are cautioned to confirm by qualification testing, or other appropriate means, the suitability of any welding consumable and procedure before use in the intended application.