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NSW-308
AWS Specification: ER-308
JIS Specification:

NONE

Other Specification:

FOR STAINLESS STEEL

 

I. APPLICATIONS:

The main application is for welding austenitic steel with the same analysis as the weld metal (AISI304 stainless steel, etc.) and can also be used for the welding of AISI301 and AISI302 stainless steel.

II. DESCRIPTION:

NSW-308 is a lime titania coated welding electrode for welding of 18% Cr – 8% Ni stainless steel.

 III. NOTES ON WELDING:

  • Remove dirts such as oil and dust from the groove.

  • Normally, pre-heat is not necessary.

  • Keep the arc length as short as possible.

  • Rebake the electrode at 200°C for 60 minutes before use.

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

 

C

Mn

Si

P

S

Cr

Ni

Cu

0.06

1.86

0.45

0.026

0.011

20.03

9.75

0.03

 V. TYPICAL MECHANICAL PROPERTIES OF WELD METAL:

 

Tensile Strength

N/mm2 (Ksi)

Elongation

%

593 (86)

46

VI. WELDING POSITIONS: ALL POSITION

VII. SIZES AVAILABLE AND RECOMMENDED CURRENTS (AC or DC + ):

 

Size

(mm)

Dia.

2.5

3.2

4.0

5.0

Length

300

350

350

350

Current Range

F

55-80

70-120

100-140

150-210

VU, OH

50-70

65-105

85-135