GX10NiCrSiNb32-20 (EN 1.4859) Austenitic Stainless Steel Casting Material
Austenitic Stainless Steel
Introduction
GX10NiCrSiNb32-20 (EN 1.4859) is an austenitic stainless steel casting grade specified in EN 10213. The standard defines delivery conditions and engineering requirements for pressure-containing components. Casting process options include Investment Casting, Shell Molding Casting and Sand Casting, subject to the applicable specification and component requirements.
| Field | Value |
|---|---|
| Designation | GX10NiCrSiNb32-20 (EN 1.4859) |
| Material Type | Stainless Steel |
| Sub Type | Austenitic Stainless Steel |
| Product Form | casting |
Manufacturing Process
Investment Casting
Shell Molding Casting
Sand Casting
Equivalent Grades
Similar Materials
N/A
Reference Standards
Related Casting Products
Physical Properties
EN 10213–2007+A1:2016
| Property | Value | Note |
|---|---|---|
| Density | 8.0 kg/dm³ | Test at 20 °C |
| Thermal Expansion | 15 ×10⁻⁶/K | Temperature range: 20–300 °C |
| Thermal Expansion | 16.3 ×10⁻⁶/K | Temperature range: 20–500 °C |
| Thermal Conductivity | 12.1 W/(m·K) | Test at 50 °C |
| Thermal Conductivity | 13.1 W/(m·K) | Test at 100 °C |
| Specific Heat | 500 J/(kg·K) | Test at 20 °C |
| Magnetic Property | Not or slightly magnetic |
Chemical Composition
| Element | EN 10213Edition 2007+A1:2016 · wt.%Cast analysis | EN 10295Edition 2002 · wt.%Cast analysis |
|---|---|---|
| C | 0.05–0.15 | 0.05–0.15 |
| Si | 0.50–1.50 | 0.50–1.50 |
| Mn | ≤ 2.00 | ≤ 2.00 |
| P | ≤ 0.040 | ≤ 0.040 |
| S | ≤ 0.030 | ≤ 0.030 |
| Cr | 19.00–21.00 | 19.00–21.00 |
| Ni | 31.00–33.00 | 31.00–33.00 |
| Mo | ≤ 0.50 | ≤ 0.50 |
| Cu | ≤ 0.50 | ≤ 0.25[1] |
| Nb | 0.50–1.50 | 0.50–1.50 |
| V | — / Not specified | ≤ 0.12[1] |
| W | — / Not specified | ≤ 0.60[1] |
| Co | — / Not specified | ≤ 1.00[1] |
Notes
EN 10295 · Edition 2002
[1] Cu/V/W/Co: Unless otherwise agreed: limit for element unspecified in; no intentional addition except for finishing the heat.
Heat Treatment
NO HEAT TREATMENT
Mechanical Properties
| Property | EN 10213Edition 2007+A1:2016 | EN 10295Edition 2002[1] |
|---|---|---|
| Yield Strength (Rp0.2) | ≥ 180 MPa[2] ≥ 180 MPa[3] ≥ 155 MPa[4] ≥ 135 MPa[5] ≥ 125 MPa[6] ≥ 120 MPa[7] ≥ 110 MPa[8] ≥ 107 MPa[9] | — / Not specified |
| Tensile Strength | 440–640 MPa[2] 400–600 MPa[10] | ≥ 440 MPa |
| Elongation | ≥ 25 %[2] ≥ 20 %[10] | ≥ 20 % |
| Impact Energy | ≥ 27 J[2] ≥ 27 J[3] | — / Not specified |
| Yield Strength | — / Not specified | ≥ 180 MPa |
Notes
EN 10295 · Edition 2002
[1] All properties in this column: Room temperature
EN 10213 · Edition 2007+A1:2016
[2] Yield Strength (Rp0.2)/Tensile Strength/Elongation/Impact Energy: wall thickness ≤ 50 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
[3] Yield Strength (Rp0.2)/Impact Energy: wall thickness ≤ 150 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
[4] Yield Strength (Rp0.2): Test at 100 °C; Verification of elevated-temperature yield values is subject to agreement at enquiry and order.
[5] Yield Strength (Rp0.2): Test at 200 °C; Verification of elevated-temperature yield values is subject to agreement at enquiry and order.
[6] Yield Strength (Rp0.2): Test at 300 °C; Verification of elevated-temperature yield values is subject to agreement at enquiry and order.
[7] Yield Strength (Rp0.2): Test at 400 °C; Verification of elevated-temperature yield values is subject to agreement at enquiry and order.
[8] Yield Strength (Rp0.2): Test at 500 °C; Verification of elevated-temperature yield values is subject to agreement at enquiry and order.
[9] Yield Strength (Rp0.2): Test at 550 °C; Verification of elevated-temperature yield values is subject to agreement at enquiry and order.
[10] Tensile Strength/Elongation: wall thickness ≤ 150 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; For centrifugal castings in this thickness range: Rm 440–640 MPa; elongation 25%.
Welding Conditions
EN 10213–2007+A1:2016
Notes
EN 10213 · Edition 2007+A1:2016
[1] Preheat: Production welding by the foundry; requirements for austenitic/austenitic-ferritic grades are normative.; Preheat temperature depends on casting geometry, thickness and climatic conditions.
[2] Interpass Temperature: Production welding by the foundry; requirements for austenitic/austenitic-ferritic grades are normative.
[3] Post-weld Heat Treatment: Production welding by the foundry; requirements for austenitic/austenitic-ferritic grades are normative.; 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
At the casting-family level, typical applications include valve bodies, pump casings and other pressure-containing components. Material selection should account for service temperature, loading and the specified delivery condition.
Last Updated: October 16, 2026