ECoCr-E Stellite 21 Electrode/Rod
Molybdenum-bearing cobalt deposit with good toughness.
Material overview
ECoCr-E Stellite 21 Electrode/Rod is included in the Cobalt Alloy Welding Consumables catalog. Molybdenum-bearing cobalt deposit with good toughness. Key characteristics for evaluation include HRC 25-35, ductile, and thermal shock and corrosion resistant. Typical applications include Hot-forging dies, valve plugs, and chemical equipment. The dataset currently includes 7 property records covering chemical composition and mechanical properties. Associated standards include A5.21 and A5.13, and product form records cover Bar / Rod and Covered Electrode. Final chemistry, mechanical properties, heat treatment, dimensions, inspection, and documentation must be confirmed against the applicable specification and mill certificate.
Key characteristics
- HRC 25-35
- ductile
- thermal shock and corrosion resistant
Typical applications
- Hot-forging dies
- valve plugs
- chemical equipment
Grade names and equivalents
Technical properties
Typical values are for reference only. Final chemistry, mechanical properties, heat treatment, dimensions, inspection, and documentation are confirmed against the applicable specification and MTC/COA before order acceptance.
Chemical composition
| Property | Value | Unit | Condition / standard |
|---|---|---|---|
| Co | balance | wt% | Typical value |
| Cr | 25-29 | wt% | Typical value |
| Mo | 5-6 | wt% | Typical value |
| Ni | 1.5-3.5 | wt% | Typical value |
| C | 0.2-0.35 | wt% | Typical value |
| Fe | 3 max | wt% | Typical value |
Mechanical properties
| Property | Value | Unit | Condition / standard |
|---|---|---|---|
| Hardness | 25-35 HRC | HRC | As deposited |
Standards and specifications
Forms, applications, and capabilities
Product forms
- Bar / Rod
- Product form
Industries
- Industry
- Petrochemical & Chemical
Capabilities
- Capability
- Capability
- Heat Treatment
- Nondestructive & Laboratory Testing