GX4CrNiMo16-5-2 (EN 1.4411) Martensitic Stainless Steel Casting Material
Martensitic Stainless Steel
Introduction
GX4CrNiMo16-5-2 is a martensitic stainless steel grade specified in EN 10283 for corrosion-resistant cast components. Casting process options include Investment Casting, Shell Molding Casting and Sand Casting, subject to the applicable specification and component requirements.
| Field | Value |
|---|---|
| Designation | GX4CrNiMo16-5-2 (EN 1.4411) |
| Material Type | Stainless Steel |
| Sub Type | Martensitic Stainless Steel |
| 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 |
|---|---|---|---|---|
| EN 10283 | Corrosion resistant steel castings | 2019 | GX4CrNiMo16-5-2 | — |
Related Casting Products
Physical Properties
EN 10283–2019
| Property | Value | Note |
|---|---|---|
| Density | 7.8 kg/dm³ | Test at 20 °C |
| Specific Heat | 460 J/(kg·K) | Test at 20 °C |
| Thermal Conductivity | 17 W/(m·K) | Test at 50 °C |
| Thermal Conductivity | 18 W/(m·K) | Test at 100 °C |
| Thermal Expansion | 11.0 ×10⁻⁶/K | Temperature range: 20–100 °C |
| Thermal Expansion | 11.8 ×10⁻⁶/K | Temperature range: 20–300 °C |
| Thermal Expansion | 12.3 ×10⁻⁶/K | Temperature range: 20–500 °C |
Chemical Composition
| Element | EN 10283Edition 2019 · wt.%Cast analysis |
|---|---|
| C | ≤ 0.06 |
| Si | ≤ 0.80 |
| Mn | ≤ 1.00 |
| P | ≤ 0.035 |
| S | ≤ 0.025 |
| Cr | 15.00–17.00 |
| Ni | 4.00–6.00 |
| Mo | 1.50–2.00 |
| Cu | ≤ 0.30[1] |
| V | ≤ 0.08[1] |
Notes
EN 10283 · Edition 2019
[1] Cu/V: Applies unless otherwise agreed; unspecified elements shall not be intentionally added without purchaser agreement except for finishing the heat.
Heat Treatment
EN 10283–2019 · +QT
| Step | Operation | Temperature | Cooling |
|---|---|---|---|
| 1 | quenching | 1020–1070 °C | air or liquid |
| 2 | tempering | 580–630 °C | — |
Mechanical Properties
| Property | EN 10283Edition 2019[1] |
|---|---|
| Yield Strength (Rp0.2) | ≥ 540 MPa |
| Tensile Strength | ≥ 760 MPa |
| Elongation | ≥ 15 % |
| Impact Energy | ≥ 60 J[2] |
Notes
EN 10283 · Edition 2019
[1] All properties in this column: wall thickness ≤ 300 mm; Test block; maximum thickness 150 mm; Room temperature; Yield and tensile strength also apply to the casting up to the maximum specified wall thickness.
[2] Impact Energy: KV2 as specified in
Welding Conditions
EN 10283–2019
Notes
EN 10283 · Edition 2019
[1] Preheat: Preheat depends on casting geometry, thickness and climatic conditions.
[2] Post-weld Heat Treatment: minor welds
[3] Post-weld Heat Treatment: major welds
Applications
Typical casting applications include cast enclosures and internal components for pumps, valves and fittings.
Last Updated: October 13, 2026