GX8CrNi12 (EN 1.4107) Stainless Steel Casting Material
Stainless Steel
Introduction
GX8CrNi12 is a stainless steel casting grade covered by EN 10213. Typical family applications include impellers, pump casings, valve bodies and internal pump and valve parts.
| Field | Value |
|---|---|
| Designation | GX8CrNi12 (EN 1.4107) |
| Material Type | Stainless Steel |
| Sub Type | — |
| 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 10213 | Steel castings for pressure purposes | 2007+A1:2016 | GX8CrNi12 | — |
Related Casting Products
Physical Properties
| Property | Value / Unit | Note | Source |
|---|---|---|---|
| Density | 7.7 kg/dm³ | Test at 20 °C | EN 10213 |
| Thermal Expansion | 10.5 ×10⁻⁶/K | Temperature range: 20–100 °C | EN 10213 |
| Thermal Expansion | 11.5 ×10⁻⁶/K | Temperature range: 20–300 °C | EN 10213 |
| Thermal Expansion | 12.3 ×10⁻⁶/K | Temperature range: 20–500 °C | EN 10213 |
| Thermal Conductivity | 26 W/(m·K) | Test at 50 °C | EN 10213 |
| Thermal Conductivity | 27 W/(m·K) | Test at 100 °C | EN 10213 |
| Specific Heat | 460 J/(kg·K) | Test at 20 °C | EN 10213 |
| Magnetic Property | Magnetic | EN 10213 |
Chemical Composition
| Element | EN 10213Edition 2007+A1:2016 · wt.%Cast analysis |
|---|---|
| C | ≤ 0.10 |
| Si | ≤ 0.40 |
| Mn | 0.50–0.80 |
| P | ≤ 0.030 |
| S | ≤ 0.020 |
| Cr | 11.50–12.50 |
| Ni | 0.80–1.50 |
| Mo | ≤ 0.50 |
| Cu | ≤ 0.30 |
| V | ≤ 0.08 |
Heat Treatment
EN 10213–2007+A1:2016 · +QT1
EN 10213–2007+A1:2016 · +QT2
Notes
EN 10213 · Edition 2007+A1:2016
[1] +QT1: Treatment temperatures are given for information; required delivery condition is specified separately.
[2] +QT2: Treatment temperatures are given for information; required delivery condition is specified separately.
Mechanical Properties
Core Mechanical Properties
Conditions are not identical. Compare each stated condition and applicability separately.
Additional Mechanical Properties
Notes
EN 10213 · Edition 2007+A1:2016
[1] Yield Strength (Rp0.2)/Tensile Strength/Elongation/Impact Energy: wall thickness ≤ 300 mm; Properties verified on test blocks of thickness up to 150 mm; applicability to casting wall thickness as stated. Larger governing thickness requires agreement.; Room temperature
[2] Yield Strength (Rp0.2): Test at 200 °C; Verification of elevated-temperature yield values is subject to agreement at enquiry and order.
[3] Yield Strength (Rp0.2): Test at 300 °C; Verification of elevated-temperature yield values is subject to agreement at enquiry and order.
[4] Yield Strength (Rp0.2): Test at 400 °C; Verification of elevated-temperature yield values is subject to agreement at enquiry and order.
Welding Conditions
EN 10213–2007+A1:2016
Notes
EN 10213 · Edition 2007+A1:2016
[1] Preheat: Production welding by the foundry; ferritic/martensitic guidance is informative.; Preheat temperature depends on casting geometry, thickness and climatic conditions.
[2] Interpass Temperature: Production welding by the foundry; ferritic/martensitic guidance is informative.
[3] Post-weld Heat Treatment: Production welding by the foundry; ferritic/martensitic guidance is informative.; In general, production welds are major when prepared cavity depth exceeds 40% of the wall thickness; minor weld corrosion conditions may require special agreement.
Applications
For stainless steel EN 10213 GX8CrNi12, typical cast components 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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Last Updated: November 6, 2026