SPECIFICATIONS: AWS/SFA 5.4: E309Mo-15
CHARACTERISTICS:
A basic coated all position low carbon electrode which deposits +23%Cr/13%Ni/ 2.5%Mo austenitic stainless steel weld metal. The high alloy content and ferrite level enable the weld metal to tolerate dilution from mild and low alloy steels without hot cracking or brittle structure. It is widely used to apply buffer layers on steel components where final layers are to be deposited using 316L or other stainless steel electrodes. The deposited weld metal is of X-ray quality.
TYPICAL APPLICATIONS:
Welding of similar composition 309Mo type stainless steels, ASTM stainless steels 409, 409S pipe ASTM A249, A312, A409, A814 grades TP 309S, 309.
Weld Metal Analysis (%)
| C | Mn | Si |
| 0.08 max | 0.5-2.5 | 0.30-0.70 |
| S | P | Mo |
| 0.025 max | 0.03 max | 2.0-3.0 |
| Cr | Ni | Cu |
| 22-25 | 14-Dec | 0.50 max |
Mechanical Properties
| UTS | YS | ELN | CVN | |
| (MPa) | (MPa) | % | impact strength | |
| (L=4D) | Temp | Joules | ||
| 550 | 405 | 30 | 0°C | 47 min |
| Min | Min | Min | ||
SCALING TEMPERATURE: 1000°C in air
MICROSTRUCTURE: Consists of austenite with 12 to 28 FN
ASME IX QUALIFICATION: QW-432 F-NUMBER 5 QW-442 A-NUMBER 8
REDRYING: 300°C / 2 hrs.
RECOMMENDED CURRENT AND PACKING DATA :
| SIZE | LENGTH | AMPS | PACKING/BOX | WEIGHT/1000 Pcs (Approx.) |
| (mm) | (mm) | DC (+) | (Pcs) | |
| 2.5 | 350 | 50-75 | 100X5=500 | 20 |
| 3.15 | 350 | 80-120 | 60X5=300 | 32 |
| 4 | 350 | 100-160 | 40X5=200 | 51 |
| 5 | 350 | 130-210 | 25X5=125 | 76 |