Stainless Steel Electrode
NEXA 309 - 16
Dissimilar Steel Welding
AWS A/SFA 5.4 E309 -16
Applications
- Dissimilar joints between stainless steels and low alloy or carbon steels
- Welding of AISI 309 type steels
- For buffer layer on low alloy and carbon steels
- Joining corrosion resistant clad steels
Characteristics
- Rutile type medium coating
- Highest resistance to cracking
- Low dilution on mild and low alloy steels due to higher alloy content
- 23/12 type deposit
- Exhibit excellent corrosion and oxidation resistance upto 1100°C
- Radiographic quality welds
Chemical Composition
| C | Mn | Si | Cr | Ni |
|---|---|---|---|---|
| 0.15 max | 0.5-2.5 | 1.0 max | 22-25 | 12-14 |
Mechanical Properties
| UTS (MPa) | El% |
|---|---|
| >550 | >30 |
Welding Currents (AC (70 OCV) /DCEP)
| 2.50mm x 350mm | 3.15mm x 350mm | 4.00mm x 350mm |
|---|---|---|
| 50-70 | 70-100 | 110-140 |
Product Specifications
Current Type
AC (70 OCV) /DCEP
Welding Positions
Packaging
- 10 KG Carton, 5 Vacuum Packed Packets of 2KGs Each
Conditions (Pre-Drying)
- 250-300°C for minimum 1 hr.