ER62-B3 (2.25Cr-1Mo) Wire
2.25Cr-1Mo wire for hydrogenation reactors and high-temperature pressure equipment.
Material overview
ER62-B3 (2.25Cr-1Mo) Wire is included in the Heat-Resistant Steel Welding Consumables catalog. Specialty alloy for industrial applications. Key characteristics for evaluation include Higher Cr-Mo for creep and hydrogen resistance and preheat and controlled PWHT. Typical applications include boiler and refinery components and high-temp piping. The dataset currently includes 8 property records covering chemical composition and mechanical properties. Associated standards include A5.28, A5.5, and GB/T 17854, and product form records cover Solid Wire / GTAW-GMAW Wire 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
- Higher Cr-Mo for creep and hydrogen resistance
- preheat and controlled PWHT
Typical applications
- Hydroprocessing reactors
- boiler and refinery components
- high-temp piping
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 |
|---|---|---|---|
| C | 0.05-0.12 | wt% | Typical value |
| Cr | 2.0-2.5 | wt% | Typical value |
| Mo | 0.9-1.2 | wt% | Typical value |
| Mn | 0.4-1.3 | wt% | Typical value |
| Si | 0.3-0.7 | wt% | Typical value |
Mechanical properties
| Property | Value | Unit | Condition / standard |
|---|---|---|---|
| Tensile strength | min 620 | MPa | After PWHT |
| Yield strength 0.2% | min 500 | MPa | After PWHT |
| Elongation | min 17 | % | After PWHT |
Standards and specifications
Forms, applications, and capabilities
Product forms
- Product form
- Product form
Industries
- Petrochemical & Chemical
- Industry
- Industry
Capabilities
- Capability
- Capability
- Heat Treatment
- Nondestructive & Laboratory Testing