GX5CrNi19-10 (EN 1.4308) Austenitic Stainless Steel Casting Material

Austenitic Stainless Steel

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Introduction

GX5CrNi19-10 is an austenitic stainless steel casting grade covered by EN 10213, EN 10283, ISO 11972. Typical applications include cast pump and valve components, pipe fittings, manifolds and filter-press parts.

FieldValue
DesignationGX5CrNi19-10 (EN 1.4308)
Material TypeStainless Steel
Sub TypeAustenitic Stainless Steel
Product Formcasting

Manufacturing Process

Investment Casting
Shell Molding Casting
Sand Casting

Equivalent Materials

StandardMaterial Grade
ASTM A351
ASTM A743
ASTM A744
CF8

Similar Materials

N/A

Reference Standards

StandardStandard TitleEditionSpecificationIdentifier
EN 10213Steel castings for pressure purposes2007+A1:2016GX5CrNi19-10EN 1.4308
EN 10283Corrosion resistant steel castings2019GX5CrNi19-10EN 1.4308
ISO 11972Corrosion-resistant cast steels for general applications2023GX5CrNi19-10EN 1.4308

Physical Properties

PropertyValue / UnitNoteSource
Density7.88 kg/dm³Test at 20 °CEN 10213; EN 10283
Thermal Expansion16.8 ×10⁻⁶/KTemperature range: 20–100 °CEN 10213
Thermal Expansion17.9 ×10⁻⁶/KTemperature range: 20–300 °CEN 10213
Thermal Expansion18.6 ×10⁻⁶/KTemperature range: 20–500 °CEN 10213
Thermal Conductivity15.2 W/(m·K)Test at 50 °CEN 10213
Thermal Conductivity16.5 W/(m·K)Test at 100 °CEN 10213
Specific Heat530 J/(kg·K)Test at 20 °CEN 10213
Magnetic PropertyNot or slightly magneticEN 10213
Specific Heat530 J/(kg·K)Test at 20 °CEN 10283
Thermal Conductivity15.2 W/(m·K)Test at 50 °CEN 10283
Thermal Conductivity16.5 W/(m·K)Test at 100 °CEN 10283
Thermal Expansion16.8 ×10⁻⁶/KTemperature range: 20–100 °CEN 10283
Thermal Expansion17.9 ×10⁻⁶/KTemperature range: 20–300 °CEN 10283
Thermal Expansion18.6 ×10⁻⁶/KTemperature range: 20–500 °CEN 10283

Chemical Composition

ElementEN 10213Edition 2007+A1:2016 · wt.%Cast analysisEN 10283Edition 2019 · wt.%Cast analysisISO 11972Edition 2023 · wt.%
C≤ 0.07≤ 0.07≤ 0.07
Si≤ 1.50≤ 1.50≤ 1.5
Mn≤ 1.50≤ 1.50≤ 1.5
P≤ 0.040≤ 0.040≤ 0.040
S≤ 0.030≤ 0.030≤ 0.030
Cr18.00–20.0018.00–20.0018.0–20.0
Ni8.00–11.008.00–11.008.0–11.0
Cu≤ 0.50≤ 0.50[1]— / Not specified

Notes

EN 10283 · Edition 2019

[1] Cu: Applies unless otherwise agreed; unspecified elements shall not be intentionally added without purchaser agreement except for finishing the heat.

Heat Treatment

EN 10213–2007+A1:2016 · +AT

StepOperationTemperatureCooling
1Informative: solution annealing1050–1150 °C[1]water quench

EN 10283–2019 · +AT

StepOperationTemperatureCooling
1solution annealing1050–1150 °Cwater

ISO 11972–2023 · Solution treated

StepOperationTemperatureCooling
1solution treatment1050–1150 °C[2]quench

Notes

EN 10213 · Edition 2007+A1:2016

[1] +AT: Treatment temperatures are given for information; required delivery condition is specified separately.

ISO 11972 · Edition 2023

[2] Solution treated: Depending on thickness, accelerated air cooling.

Mechanical Properties

Core Mechanical Properties

EN 10213 — 2007+A1:2016 · Table 3 — Normative

Property+AT
Yield Strength (Rp1.0)≥ 200 MPa[1]
Tensile Strength440–640 MPa[1]
Elongation≥ 30 %[1]
Impact Energy≥ 60 J[1]

EN 10283 — 2019 · Table 2 — Normative

Property+AT
Yield Strength (Rp0.2)≥ 175 MPa
Yield Strength (Rp1.0)≥ 200 MPa
Tensile Strength≥ 440 MPa
Elongation≥ 30 %
Impact Energy≥ 60 J[2]
Notes
  • wall thickness ≤ 150 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.

ISO 11972 — 2023 · Table 2 — Normative

PropertySolution treated
Yield Strength (Rp0.2)≥ 175 MPa
Tensile Strength≥ 440 MPa
Elongation≥ 30 %
Impact Energy≥ 60 J[3]
Yield Strength (Rp1.0)≥ 200 MPa
Notes
  • wall thickness ≤ 150 mm; Room temperature; Test blocks used to verify mechanical properties shall not exceed 150 mm thickness. Properties for samples removed from castings shall be agreed between manufacturer and purchaser.

Additional Mechanical Properties

Elevated-Temperature Properties

EN 10213 — 2007+A1:2016 · Table 6 — Normative

Property+AT
Yield Strength (Rp1.0)≥ 160 MPa[4]
≥ 125 MPa[5]
≥ 110 MPa[6]
Low-Temperature Properties

EN 10213 — 2007+A1:2016 · Table 5 — Normative

Property+AT
Impact Energy≥ 60 J[7]

Notes

EN 10213 · Edition 2007+A1:2016

[1] Yield Strength (Rp1.0)/Tensile Strength/Elongation/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 (Rp1.0): Test at 100 °C; Verification of elevated-temperature yield values is subject to agreement at enquiry and order.

[5] Yield Strength (Rp1.0): Test at 200 °C; Verification of elevated-temperature yield values is subject to agreement at enquiry and order.

[6] Yield Strength (Rp1.0): Test at 300 °C; Verification of elevated-temperature yield values is subject to agreement at enquiry and order.

[7] Impact Energy: Test at -196 °C; Test block; maximum thickness 150 mm; Optional by agreement at enquiry and order

EN 10283 · Edition 2019

[2] Impact Energy: KV2 as specified in

ISO 11972 · Edition 2023

[3] Impact Energy: Verification of impact tests is required only when indicated by the customer.

Welding Conditions

EN 10213–2007+A1:2016

RequirementValue
PreheatNo preheat[1]
Interpass TemperatureAt manufacturer discretion unless otherwise agreed[2]
Post-weld Heat Treatment+AT (solution annealing), normally liquid quenching; air quenching may be agreed for very small, thin castings. May be omitted for high-temperature use.[3]

EN 10283–2019

RequirementValue
PreheatNo preheat[4]
Interpass TemperatureAt manufacturer discretion unless otherwise agreed
Post-weld Heat TreatmentSolution annealing followed by water quenching[5]
Post-weld Heat TreatmentSolution annealing followed by water quenching[6]

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.

EN 10283 · Edition 2019

[4] Preheat: Preheat depends on casting geometry, thickness and climatic conditions.

[5] Post-weld Heat Treatment: minor welds; Air quenching may be agreed for very small, thin castings according to corrosion conditions.

[6] Post-weld Heat Treatment: major welds; Air quenching may be agreed for very small, thin castings according to corrosion conditions.

Applications

GX5CrNi19-10 is used for cast pump and valve components, pipe fittings, manifolds and filter-press parts. Other documented applications include equipment for food and beverage production, chemical processing, textiles and paper manufacture. Other cast components used in this material family include impellers and covers.

Typical settings include chemical and pharmaceutical plants, food and beverage machinery, and filling, mixing and liquid-handling systems.

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Last Updated: November 6, 2026

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