Product code: NB-308
Brand: NAHAVIWEL
Origin: Việt Nam
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.
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 |
- |
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 |