GX20Cr14 (EN 1.4027) Martensitic Stainless Steel Casting Material
Martensitic Stainless Steel
Introduction
GX20Cr14 is a martensitic stainless steel casting grade covered by EN 10283. Typical family applications include impellers, pump casings, valve bodies and internal pump and valve parts.
| 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 Materials
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
| Property | Value / Unit | Note | Source |
|---|---|---|---|
| Density | 7.7 kg/dm³ | Test at 20 °C | EN 10283 |
| Specific Heat | 460 J/(kg·K) | Test at 20 °C | EN 10283 |
| Thermal Conductivity | 29 W/(m·K) | Test at 50 °C | EN 10283 |
| Thermal Expansion | 10.5 ×10⁻⁶/K | Temperature range: 20–100 °C | EN 10283 |
| Thermal Expansion | 11.5 ×10⁻⁶/K | Temperature range: 20–300 °C | EN 10283 |
| Thermal Expansion | 12 ×10⁻⁶/K | Temperature range: 20–500 °C | EN 10283 |
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
Core Mechanical Properties
EN 10283 — 2019 · Table 2 — Normative
| Property | +QT |
|---|---|
| Yield Strength (Rp0.2) | ≥ 440 MPa |
| Tensile Strength | ≥ 590 MPa |
| Elongation | ≥ 12 % |
- 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
Martensitic stainless steel EN 10283 GX20Cr14 belongs to a corrosion-resistant steel casting family typically used for components exposed to corrosive environments in general engineering service. 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