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X15CrNiSi25-4 | 1.4821 Material Datasheet

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Material Description

Material Number Material Name Material Number (single) Standard Scope Standard Status Country Predecessor VDA 231-106 classification Application temperature [°C]
1.4821 (DIN EN 10095 : 2018-12) X15CrNiSi25-4 1.4821 DIN EN 10095 : 2018-12 Supersedes DIN EN 10095 : 1999-05 Valid Germany X15CrNiSi25-4 1.1.2 550 - 1100 1)
1) Remark: The austenitic-ferritic heat-resistant steel X15CrNiSi25-4 is resistant to the effects of hot gases and products of combustion at temperatures above 550 °C. It is applicable up to 1100 °C (highest application temperature in air). The material is resistant to oxidizing, sulfureous gases shows resistance to reducing, sulfureous, carburizing, nitrogenous and oxygen deficient gases. Application in a temp. range of 400 to 500°C and 600 to 850 °C should be avoided due to the embrittlement risk. Permanent application temp. accounts for 900 °C. Application for oven components and fittings, for winding ropes, rails, drums.

Chemical Composition

C [%] Cr [%] Mn [%] N [%] Ni [%] P [%] S [%] Si [%] Remainder
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Material Compliance

REACh RoHS
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Mechanical Properties

Semi-finished Product Condition Nominal Size [mm] Temperature [°C] Specimen Direction Tensile Strength [MPa] Yield Strength (0.2% offset) [MPa] Elongation A [%] Hardness HB | HBW
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Physical Properties

Temperature [°C] Density [g/cm³] Young's Modulus [GPa] Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] Differential Coefficient of Thermal Expansion [10^-6*K^-1] Thermal Conductivity [W/(m*K)] Thermal Diffusivity [10^-6 m²/s] Specific Electrical Resistance [µΩm] Mean Specific Heat Capacity [kJ/(kg*K)] True Specific Heat Capacity [kJ/(kg*K)] Magnetizeability
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Welding and Joining

Welding and Joining - Evaluation
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Creep Rupture Behaviour

Temperature [°C] Creep Tensile Strength at 10³ h [MPa] Creep Tensile Strength at 10^4 h [MPa] 1% Creep Limit at 10³ h [MPa] 1% Creep Limit at 10^4 h [MPa]
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Heat Treatment

Heat Treatment Temperature [°C] Medium
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Cross Reference

Material Name Country Standard
X20CrNiSi25-4 Germany SEW 470
X15CrNiSi25-4 Europe EN 10095
X20CrNiSi25-4 1)
1) Source: Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach

Producer/Supplier/Trade names

Tradename Supplier
BGH 4821 BGH Edelstahl Siegen GmbH 1)
HC 24 N Dörrenberg Edelstahl GmbH, Engelskirchen 1)
1.4821 INOX-Stahlgesellschaft mbH, Nürtingen 1)
1.4821 NIRONIT Edelstahlhandel GmbH, Rosengarten 1)
X20CrNiSi25-4 pauly STAHLHANDEL, Essen 1)
1.4821 Remystahl GmbH & Co. KG, Hagen 1)
1.4821 ZAPP AG, Ratingen 1)
1) Source: Stahlschlüssel 2016, Verlag Stahlschlüssel Wegst GmbH, Marbach

Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Density

Temperature [°C] Density [g/cm³]
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Linear-elastic

Temperature [°C] Young's modulus [GPa] Bulk modulus [GPa] Shear modulus [GPa] Poisson's ratio
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Alternating stress

Temperature [°C] Stress ratio Mean stress [MPa] Alternating stress [MPa] Cycles
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Coefficient thermal expansion

Related Temperature [°C] Temperature [°C] Coefficient thermal expansion [10^-6*K^-1]
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Specific heat

Temperature [°C] Specific heat [kJ/(kg*K)]
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Thermal conductivity

Temperature [°C] Thermal conductivity [W/(m*K)]
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Electrical resistivity

Temperature [°C] Specific electrical resistance [µΩm]
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Designation

Designation Material number Source
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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