Postalloy® DuraHard™ 2998-SA
Postalloy® DuraHard™ 2998-SA is a martensitic submerged-arc tool steel alloy with Chromium, Molybdenum, Carbon, Manganese, Silicon, and Iron. Provides good low stress abrasion resistance with high compressive strength, as well as good metal- to-metal wear resistance. Deposits are heat-treatable. For use on carbon and alloy steels.
Specifications
Product Type
- Submerged Arc Wire
Applications
- Cable sheaves
- Bed knives
- Steel mill rollers and other forming rolls
- Crane wheels
- Forging dies
Weld Deposit Properties
- Hardness::
- 2 and 3 layers 48-54Rc
- Preheat may be required for certain low alloy, higher carbon steels
- Crack-free deposits can be made with proper procedure
- Machinable:
- No. Grinding only.
Welding Parameters
Current Type: DC Electrode Positive
| Volts | Amps | Diameter | Stick Out |
|---|---|---|---|
| 26-30 | 400-500 | 1/8" (3.2mm) | 11⁄4"-11⁄2"(33-38mm) |
| 29-32 | 425-540 | 5/32" (4.0mm) | 11⁄4"-13⁄4"(33-45mm) |
Welding Procedure:
Flux: Neutral
Position: Flat
Packaging Options
| Diameter | Standard Packaging |
|---|---|
| 1/8" (3.2mm) | 500 lb (226.80 kg) drum |
| 5/32" (4.0mm) | 500 lb (226.80 kg) drum |