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NF709 Material Datasheet

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Material Description

Material Number Material Name Standard Scope Standard Status Country Predecessor VDA 231-106 classification Application temperature [°C]
NF709 (VdTÜV WB 563-2 : 2021-09) NF709 VdTÜV WB 563-2 : 2021-09 Supersedes VdTÜV WB 563-2 : 2012-12 Valid Germany NF709 1.1.2 20 - 750 1)
1) Remark: Heat-resistant and corrosion-resistant seamless austenitic steel tubes and pipes for pressure equipment acc. to directive 2014/68/EU, for pressure vessels according to AD 2000 W2, and for nuclear engineering.

Chemical Composition

B [%] C [%] Cr [%] Mn [%] Mo [%] N [%] Nb [%] 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] Elongation A [%]
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Physical Properties

Condition Temperature [°C] Young's Modulus [GPa] Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1]
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Toughness Data (Impact)

Condition Nominal Size [mm] Temperature [°C] Specimen Shape Specimen Direction Notch Impact Energy [J]
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Welding and Joining

Procedure Welding and Joining - Evaluation
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Creep Rupture Behaviour

Condition Temperature [°C] Creep Tensile Strength at 10^4 h [MPa] Creep Tensile Strength at 10^5 h [MPa]
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Heat Treatment

Heat Treatment Temperature [°C] Medium
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Cross Reference

Material Name Country Standard
SUS310J2TB Japan METI KA-SUS310J2TB 1)
A213 Grade TP310MoCbN USA ASTM A213 1)
Grade TP310MoCbN USA ASTM A213 1)
TP310MoCbN USA ASTM A213 1)
S31025 USA UNS 1)
SA-213 CC2581 USA ASME SA-213 1)
CC2581 USA ASME SA-213 1)
22Cr-25Ni-1.5Mo-Nb-N USA 1)
NF709 Germany VdTÜV WB 563/2
1) Source: Nippon Steel Corporation, Seamless Steel Tubes and Boiler pipes (P008en_03_202004f), 2020

Producer/Supplier/Trade names

Tradename Supplier
NF709 Nippon Steel Corp., Hikari City

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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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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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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Linear-elastic

Temperature [°C] Young's modulus [GPa] Bulk modulus [GPa] Shear modulus [GPa] Poisson's ratio
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Coefficient thermal expansion

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