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X2NiCrAlTi32-20 | 1.4558 Material Datasheet

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Material Description

Material Number Material Name Material Number (single) Standard Scope Standard Status Country Successor VDA 231-106 classification
1.4558 (DIN EN 10216-5 : 2004-11) X2NiCrAlTi32-20 1.4558 DIN EN 10216-5 : 2004-11 DIN EN 10216-5 : 2004-11 replaced by DIN EN 10216-5 : 2014-03 Replaced Germany X2NiCrAlTi32-20 1.1.2 1)
1) Remark: Steel X2NiCrAlTi32-20, material number 1.4558 is applicated acc. to VdT_V-material specification 474 : 1984-12 for heat exchanger pipes for use as U-pipes in steam generators for pressurized water reactors (grit size-index acc. to EN 103 at least 7 at the straight pipe) for temperatures from -10 to 400 deg. as per KTA 3201.1 and other examined specifications as well as for pressure vessels acc. to TRB 100 and AD-data sheet W 2 at operating temperatures from -10 to 400 deg. The material can be welded in pipe plates using TIG-automatic welding, TIG-hand welding and metal arc welding. It is cold formable for bending radii of at least 4,5 x outside diameter. Heat treatment is not allowed. The material shows owing to its high Ni-content a very high resistance to stress corrosion. The material is highly resistant against stress corrosion because of the high amount of Ni.Furthermore it is very high resistant in nitric acid and organic acids as well as in aqueous media also at high temperatures. Pitting and crevice corrosion sensitiveness are not high but they are significantly higher than at 1.4539. The material is resistant to intercrystalline corrosion both in delivery and welded condition (at tubes for wall thicknesses up to max. 6 mm). Its limit temperature amounts to 400 deg. (operating time up to 100000 h, no intercrystalline corrosion). 1.4558 is only limited applicable in sulphuric and hydrochlorid acid. The steel is standard material for steam generators and feed water heater in power stations.

Chemical Composition

Al [%] C [%] Cr [%] Mn [%] Ni [%] P [%] S [%] Si [%] Ti [%] 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] Yield Strength (1.0% offset) [MPa] Elongation A [%]
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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)]
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Cross Reference

Material Name Country Standard
N08800 USA UNS
N08800 USA ASTM B 407
N08800 USA ASME SB 407

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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Strain life

Temperature [°C] Static hardening coefficient [MPa] Static hardening exponent Cyclic fatigue strength coefficient [MPa] Cyclic fatigue strength exponent Ductility coefficient [Pa] Ductility exponent Cyclic strength coefficient [MPa] Cyclic strain hardening exponent Young's modulus [GPa]
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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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