Postalloy® DuraHard™ 2953-SA
Postalloy® DuraHard™ 2953-SA is an iron base alloy that deposits weld metal similar in composition and heat treatment to H-12 tool steel. Weld deposits are hard and tough, resistant to abrasion, metal-to-metal wear and high compressive loading. Retains hardness at elevated temperatures. The deposit can be applied crack-free when proper welding procedures are followed.
Specifications
Product Type
- Submerged Arc Wire
Applications
- Table rolls
- Pinch rolls
- Scale breaker rolls
- Coiler rolls
- Leveler rolls and runout table rolls
- Brake drums and packing glands
- Cable drums and sheaves
Weld Deposit Properties
- Machinable with carbide tools::
- Difficult
- Abrasion Resistance::
- Good
- Impact Resistance::
- Fair
- Compressive Strength::
- High
- Hardness:
- 51Rc - 55Rc
Welding Parameters
Current Type:
| Volts | Amps | Diameter | Stick Out |
|---|---|---|---|
| 25-29 | 350-500 | 3/32" (2.4mm) | 11⁄4"-11⁄2"(33-38mm) |
| 26-32 | 400-500 | 1/8" (3.2mm) | 11⁄4"-11⁄2"(33-38mm) |
| 28-32 | 450-600 | 5/32" (4.0mm) | 11⁄4"-11⁄2"(33-38mm) |
Welding Procedure:
Recommended Flux - Neutral
Hardness after tempering
Packaging Options
| Diameter | Standard Packaging |
|---|---|
| 3/32" (2.4mm) | 500 lb (226.80 kg) drum |
| 1/8" (3.2mm) | 500 lb (226.80 kg) drum |
| 5/32" (4.0mm) | 500 lb (226.80 kg) drum |