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NAHAVIWEL Stainless Steel Welding Electrodes NB-309
Product code: NB-309
Brand: NAHAVIWEL
Origin: Việt Nam
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Detailed description
WELDING ELECTRODE NAHAVIWEL NB-309
1. Standard:
- AWS A5.4 – E309-16
- JIS Z 3221 – ES309-16
- EN ISO 3581-A E 23 12 R 1 2
Approved by Vietnam Register: QCVN 64-2015/BGTVT, QCVN 65-2015/BGTVT.
2. Applications and Usage instructions:
NB-309 is suitable for welding 22Cr-12Ni steel, dissimilar metal joint and surfacing mild steel.Typically used for stainless steel pipes in refineries, chemical. Prehear at 250- 3000 C for 1 hour before usage.
Specifications
WELDING ELECTRODE NAHAVIWEL NB-309
1. Diameter & welding current (AC&DC)
|
Diameter(mm) |
Φ2.0 |
Φ2.6 |
Φ3.2 |
Φ4.0 |
Φ5.0 |
|
|
Welding electrode’s length(mm) |
300 |
300 |
350 |
350 |
350 |
|
|
Welding current (A) |
F, FW |
40÷70 |
50÷85 |
80÷120 |
100÷150 |
140÷180 |
|
VU,H,OH |
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) |
|
|
651 |
37 |
|
3. Chemical composition of the weld metal (%):
|
%C |
%Si |
%Mn |
%S |
%P |
%Ni | %Cr |
|
0.06 |
0.67 |
1.24 |
0.009 |
0.026 |
12.93 | 24.2 |
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