NAHAVIWEL Stainless Steel Welding Electrodes NB-308
NAHAVIWEL Stainless Steel Welding Electrodes NB-308

NAHAVIWEL Stainless Steel Welding Electrodes NB-308

Product code: NB-308

Brand: NAHAVIWEL

Origin: Việt Nam

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Detailed description

WELDING ELECTRODE NAHAVIWEL NB-308

1. Standard

- AWS A5.4 – E308-16

- JIS Z 3221 – ES308-16

- EN ISO 3581-A E 19 9 R 1 2

Approved by Vietnam Register: QCVN 64-2015/BGTVT, QCVN 65-2015/BGTVT.

2. Applications and Usage instructions:

NB-308 is suitable for welding type 308 base metal with low or medium carbon content such as steel pipes in refineries, chemical plant, oil and gas industry. Preheat at 250- 3000 C for 1 hour before usage.

Specifications

WELDING ELECTRODE NAHAVIWEL NB-308L

1. Diameter & welding current (AC&DC)

Diameter(mm)

Φ1.6

Φ2.0

Φ2.5

Φ3.2

Φ4.0

Φ5.0

Welding electrode’s length(mm)

250

250/300

300

350

350

350

Welding current (A)

F, FW

25÷50

40÷70

50÷85

80÷120

100÷150

140÷1800

VU,H,OH

25÷50

40÷60

45÷80

70÷110

90÷135

-

 
Note: F (Flat), FW (Fillet Weld), VU (Vertical Upward), H (Horizontal), OH (Overhead).

2. Mechanical properties of the weld metal:

Yield strength (N/mm2)

Tensible strength (N/mm2)

Elongation (%)

Impact value (J/ 00C)

 

591

40

 

3. Chemical composition of the weld metal:

%C

%Si

%Mn

%S

%P

%Ni %Cr

0.024

0.62

1.28

0.01

0.028

9.43 19.7
Sấy khô ở 250-3000 C trong 1 giờ và giữ ở nhiệt độ 100-1500C trước khi sử dụng.
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