Cobalt #12 CTD Electrode
Class: ECoCr-B
AWS: A5.13
DURAMAX COBALT #12 CTD ELECTRODE
Conforms to Certification: AWS A5.13 | ASME SFA 5.13
Weld Process: Shielded Metal Arc
| AWS Chemical Composition Requirements | ||
| C = 1.0 – 1.7 | Mn = 2.0 max | Si = 2.0 max |
| Cr = 25 – 32 | Ni = 3.0 max | Mo = 1.0 max |
| Fe = 5.0 max | W = 7.0 – 9.5 | Co = Remainder |
| Other = 1.0 max | ||
Product Description:
DURAMAX Cobalt #12 SMAW electrodes provide excellent hot hardness and abrasion resistance and good corrosion resistance. These properties make DMCobalt#12 well suited for wood cutting saws and bars and for industrial cutting applications for carpet, plastics, paper and chemical industries. This electrode is recommended for metal–to-metal abrasion involving high temperature and/or corrosive media with moderate impact. The weld deposits are smooth and it acquires a high polish in use. This alloy is nonmagnetic and is not forgeable. It can be machined with difficulty using carbide tools. It bonds well to all steels, including stainless.
| Typical Applications: |
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| – Chain Saws Blades | – Chain Saw Bars | ||
| – Saw Teeth | – Extrusion Dies | ||
| Deposited Chemical Compositon % (Typical) | |||
| C = 1.5 | Mn = 0.9 | Si = 1.1 | |
| Cr = 28.7 | Ni = 2.6 | Mo = 0.1 | |
| Fe = 3.1 | W = 8.5 | Co = Balance | |
| Typical Deposit Characteristics: |
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| – Abrasion Resistance | Excellent | – Hardness | HRC 34 – 47 |
| – Impact Resistance | Good | – Hot Weld Hardness | Excellent |
| – Corrosion Resistance | Good | – Deposit layers | 2 Layers Max |
| – Magnetic | No | – Metal-to-Metal Wear | Excellent |
| – Machineability | Difficult use Carbide tools | – Deposit Cross Check | No |
Recommended Operation of Welding Rods
Flat Welding
| Diameter | Amps DCEP |
| 1/8 | 90 – 120 |
| 5/32 | 145 – 165 |
| 3/16 | 175 – 195 |