Introduction
GX3CrNiMoCuN26-6-3 is a corrosion-resistant stainless steel casting grade specified in ISO 11972. Its chemical composition, mechanical properties and heat treatment are defined by the applicable standard context. CQ family-approved manufacturing options include Investment Casting, Shell Molding Casting and Sand Casting.
| Field | Value |
|---|---|
| Designation | GX3CrNiMoCuN26-6-3 (EN 1.4515) |
| Material Type | Stainless Steel |
| Sub Type | — |
| Product Form | casting |
Manufacturing Process
Investment Casting
Shell Molding Casting
Sand Casting
Equivalent Grades
N/A
Similar Materials
N/A
Reference Standards
| Standard | Standard Title | Edition | Specification | Identifier |
|---|---|---|---|---|
| ISO 11972 | Corrosion-resistant cast steels for general applications | 2023 | GX3CrNiMoCuN26-6-3 | — |
Related Casting Products
Physical Properties
N/A
Chemical Composition
| Element | ISO 11972Edition 2023 · wt.% |
|---|---|
| C | ≤ 0.03 |
| Si | ≤ 1.0 |
| Mn | ≤ 2.00 |
| P | ≤ 0.030 |
| S | ≤ 0.020 |
| Cr | 24.5–26.5 |
| Ni | 5.5–7.0 |
| Mo | 2.50–3.50 |
| Cu | 0.80–1.30 |
| N | 0.12–0.25 |
Heat Treatment
ISO 11972–2023 · Solution treated
| Step | Operation | Temperature | Cooling |
|---|---|---|---|
| 1 | solution treatment | 1120–1150 °C[1] | quench in water |
Notes
ISO 11972 · Edition 2023
[1] Solution treated: After high-temperature solution annealing, optional cooling from 1040 °C to 1010 °C before water quenching may prevent cracks in complex shapes.
Mechanical Properties
| Property | ISO 11972Edition 2023[1] |
|---|---|
| Yield Strength (Rp0.2) | ≥ 480 MPa |
| Tensile Strength | ≥ 650 MPa |
| Elongation | ≥ 22 % |
| Impact Energy | ≥ 60 J[2] |
Notes
ISO 11972 · Edition 2023
[1] All properties in this column: wall thickness ≤ 200 mm; Room temperature; Test blocks used to verify mechanical properties shall not exceed 150 mm thickness. Properties for samples removed from castings shall be agreed between manufacturer and purchaser.
[2] Impact Energy: Verification of impact tests is required only when indicated by the customer.
Welding Conditions
N/A
Applications
At the stainless steel casting-family level, typical applications include valve bodies, pump housings and custom corrosion-service cast components. Suitability must be checked against the specified service conditions and grade requirements.
Last Updated: October 16, 2026