GX4CrNiMo16-5-2 (EN 1.4411) Martensitic Stainless Steel Casting Material
Martensitic Stainless Steel
Introduction
GX4CrNiMo16-5-2 is a martensitic stainless steel grade covered by EN 10283. Typical family applications include impellers, pump casings, valve bodies and internal pump and valve parts.
| 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 Materials
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
| Property | Value / Unit | Note | Source |
|---|---|---|---|
| Density | 7.8 kg/dm³ | Test at 20 °C | EN 10283 |
| Specific Heat | 460 J/(kg·K) | Test at 20 °C | EN 10283 |
| Thermal Conductivity | 17 W/(m·K) | Test at 50 °C | EN 10283 |
| Thermal Conductivity | 18 W/(m·K) | Test at 100 °C | EN 10283 |
| Thermal Expansion | 11.0 ×10⁻⁶/K | Temperature range: 20–100 °C | EN 10283 |
| Thermal Expansion | 11.8 ×10⁻⁶/K | Temperature range: 20–300 °C | EN 10283 |
| Thermal Expansion | 12.3 ×10⁻⁶/K | Temperature range: 20–500 °C | EN 10283 |
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
Core Mechanical Properties
EN 10283 — 2019 · Table 2 — Normative
| Property | +QT |
|---|---|
| Yield Strength (Rp0.2) | ≥ 540 MPa |
| Tensile Strength | ≥ 760 MPa |
| Elongation | ≥ 15 % |
| Impact Energy | ≥ 60 J[1] |
- 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.
Notes
EN 10283 · Edition 2019
[1] 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
Martensitic stainless steel EN 10283 GX4CrNiMo16-5-2 is typically used for cast enclosures and internal components for pumps, valves and fittings. Other cast components used in this material family include impellers, pump casings, valve bodies and internal pump and valve parts. These castings are used in water-service pumping systems, industrial process equipment and power-generation facilities.
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Email Us for a QuoteLast Updated: November 6, 2026