Introduction
G-CoCr28 is a cobalt-base heat-resistant casting alloy covered by EN 10295. Casting production and service suitability must follow the applicable specification and component requirements.
| Field | Value |
|---|---|
| Designation | G-CoCr28 (EN 2.4778) |
| Material Type | Cobalt Alloy |
| Sub Type | Cobalt-base Alloys |
| Product Form | casting |
Manufacturing Process
Equivalent Grades
N/A
Similar Materials
N/A
Reference Standards
| Standard | Standard Title | Edition | Specification | Identifier |
|---|---|---|---|---|
| EN 10295 | Heat resistant steel castings | 2002 | G-CoCr28 | — |
Related Casting Products
Physical Properties
N/A
Chemical Composition
| Element | EN 10295Edition 2002 · wt.%Cast analysis |
|---|---|
| C | 0.05–0.25 |
| Si | 0.50–1.50 |
| Mn | ≤ 1.50 |
| P | ≤ 0.040 |
| S | ≤ 0.030 |
| Cr | 27.00–30.00 |
| Ni | ≤ 4.00 |
| Fe | balance |
| Co | 48.0–52.0 |
| Mo | ≤ 0.50 |
| W | ≤ 0.60[1] |
| Nb | ≤ 0.50 |
Notes
EN 10295 · Edition 2002
[1] W: Unless otherwise agreed: limit for element unspecified in; no intentional addition except for finishing the heat.
Heat Treatment
NO HEAT TREATMENT
Mechanical Properties
| Property | EN 10295Edition 2002[1] |
|---|---|
| Yield Strength | ≥ 235 MPa |
| Tensile Strength | ≥ 490 MPa |
| Elongation | ≥ 6 % |
Notes
EN 10295 · Edition 2002
[1] All properties in this column: Room temperature
Welding Conditions
N/A
Applications
At the cobalt-base heat-resistant casting-family level, typical applications include custom cast components for elevated-temperature industrial service; selection must account for the specified service environment.
Last Updated: October 13, 2026