GX20Cr14 (EN 1.4027) Martensitic Stainless Steel Casting Material
Martensitic Stainless Steel
Introduction
GX20Cr14 (EN 1.4027) is a martensitic stainless steel casting grade specified in EN 10283. The standard covers corrosion-resistant castings for general purposes and defines the applicable delivery conditions and engineering requirements. Casting process options include Investment Casting, Shell Molding Casting and Sand Casting, subject to the applicable specification and component requirements.
| Field | Value |
|---|---|
| Designation | GX20Cr14 (EN 1.4027) |
| 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 | GX20Cr14 | — |
Related Casting Products
Physical Properties
EN 10283–2019
| Property | Value | Note |
|---|---|---|
| Density | 7.7 kg/dm³ | Test at 20 °C |
| Specific Heat | 460 J/(kg·K) | Test at 20 °C |
| Thermal Conductivity | 29 W/(m·K) | Test at 50 °C |
| Thermal Expansion | 10.5 ×10⁻⁶/K | Temperature range: 20–100 °C |
| Thermal Expansion | 11.5 ×10⁻⁶/K | Temperature range: 20–300 °C |
| Thermal Expansion | 12 ×10⁻⁶/K | Temperature range: 20–500 °C |
Chemical Composition
| Element | EN 10283Edition 2019 · wt.%Cast analysis |
|---|---|
| C | 0.16–0.23 |
| Si | ≤ 1.00 |
| Mn | ≤ 1.00 |
| P | ≤ 0.045 |
| S | ≤ 0.030[1] |
| Cr | 12.50–14.50 |
| Ni | ≤ 1.00 |
| Cu | ≤ 0.30 |
| V | ≤ 0.08 |
Notes
EN 10283 · Edition 2019
[1] S: For regulated markets, sulfur content between 0.015 and 0.030 wt.% is recommended.
Heat Treatment
EN 10283–2019 · +QT
| Step | Operation | Temperature | Cooling |
|---|---|---|---|
| 1 | quenching | 950–1050 °C | air or liquid |
| 2 | tempering | 650–750 °C | — |
Mechanical Properties
| Property | EN 10283Edition 2019[1] |
|---|---|
| Yield Strength (Rp0.2) | ≥ 440 MPa |
| Tensile Strength | ≥ 590 MPa |
| Elongation | ≥ 12 % |
Notes
EN 10283 · Edition 2019
[1] All properties in this column: wall thickness ≤ 150 mm; Test block; maximum thickness 150 mm; Room temperature
Welding Conditions
EN 10283–2019
| Requirement | Value |
|---|---|
| Preheat | 200–400 °C |
| Interpass Temperature | ≤ 400 °C |
| Post-weld Heat Treatment | Tempering at the same temperature as the base material |
Applications
Typical applications for this corrosion-resistant steel casting family include components exposed to corrosive environments in general engineering service.
Last Updated: October 13, 2026