NF709 | NF709 Material Datasheet
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| Material Number | Material Name | Material Number (single) | Standard | Scope | Standard Status | Country | Successor | VDA 231-106 classification | Application temperature [°C] | |
|---|---|---|---|---|---|---|---|---|---|---|
| NF709 (VdTÜV WB 563-2 : 2010-03) | NF709 | NF709 | VdTÜV WB 563-2 : 2010-03 | VdTÜV WB 563-2 : 2010-03 replaced by VdTÜV WB 563-2 : 2012-12 | Replaced | Germany | NF709 | 1.1.2 | 20 - 750 | 1) |
| 1) Remark: Valid for seamless pipes high temperature steel cold and warm formable Application range 20 to 750°C: - for pressure equipment according to guideline 97/23/EG - for pressure vessels according to AD 2000-data sheet W2 - nuclear application as far as nuclear rules and material-related specifications allow the application Melting: - electric arc process with following AOD-process or vacuum induction process Microstructure: - solution annealed austenitic microstructure with grain size 4 to 7 according to EN ISO 643/ASTM E112 |
Chemical Composition
| B [%] | C [%] | Cr [%] | Mn [%] | Mo [%] | N [%] | Nb [%] | Ni [%] | P [%] | S [%] | Si [%] | Ti [%] | Remainder | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| 1) Source: blur |
Material Compliance
| REACh | RoHS |
|---|---|
| blur | blur |
Mechanical Properties
| Semi-finished Product | Condition | Nominal Size [mm] | Temperature [°C] | Specimen Direction | Tensile Strength [MPa] | Yield Strength (0.2% offset) [MPa] | Elongation A [%] | |
|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | blur | 1) | ||
| blur | blur | blur | blur | blur | blur | 1) | ||
| blur | blur | blur | blur | blur | blur | 1) | ||
| blur | blur | blur | blur | blur | blur | 1) | ||
| blur | blur | blur | blur | blur | blur | 1) | ||
| blur | blur | blur | blur | blur | blur | 1) | ||
| blur | blur | blur | blur | blur | blur | 1) | ||
| blur | blur | blur | blur | blur | blur | 1) | ||
| blur | blur | blur | blur | blur | blur | 1) | ||
| blur | blur | blur | blur | blur | blur | 1) | ||
| 1) Source: blur |
Physical Properties
| Semi-finished Product | Condition | Temperature [°C] | Young's Modulus [GPa] | Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] | |
|---|---|---|---|---|---|
| blur | blur | blur | blur | 1)2) | |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| 1) Source: blur | |||||
| 2) Remark: blur |
Toughness Data (Impact)
| Semi-finished Product | Condition | Temperature [°C] | Specimen Shape | Specimen Direction | Notch Impact Energy [J] | |
|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | 1)2) |
| 1) Source: blur | ||||||
| 2) Remark: blur |
Welding and Joining
| Procedure | Condition | Welding and Joining - Evaluation | Nominal Size [mm] | Information | |
|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | blur | blur | 1) |
| 1) Source: blur |
Creep Rupture Behaviour
| Semi-finished Product | Nominal Size [mm] | Temperature [°C] | Creep Tensile Strength at 10^4 h [MPa] | Creep Tensile Strength at 10^5 h [MPa] | |
|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| blur | blur | blur | blur | blur | 1)2) |
| 1) Source: blur | |||||
| 2) Remark: blur |
Heat Treatment
| Semi-finished Product | Heat Treatment | Nominal Size [mm] | Temperature [°C] | Medium | |
|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | 1) |
| blur | blur | blur | 1)2) | ||
| 1) Source: blur | |||||
| 2) Remark: blur |
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 |
|---|---|---|---|---|---|---|---|---|---|
| blur | blur |
Linear-elastic
| Temperature [°C] | Young's modulus [GPa] | Bulk modulus [GPa] | Shear modulus [GPa] | Poisson's ratio |
|---|---|---|---|---|
| blur | blur | |||
| blur | blur | |||
| blur | blur | |||
| blur | blur | |||
| blur | blur | |||
| blur | blur | |||
| blur | blur | |||
| blur | blur | |||
| blur | blur | |||
| blur | blur |
Yield strength
| Temperature [°C] | 0.1% Proof strength [MPa] | 0.2% Proof strength [MPa] | Yield strength [MPa] |
|---|---|---|---|
| blur | blur | ||
| blur | blur | ||
| blur | blur | ||
| blur | blur | ||
| blur | blur | ||
| blur | blur | ||
| blur | blur | ||
| blur | blur | ||
| blur | blur | ||
| blur | blur | ||
| blur | blur |
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
Alternating stress
| Temperature [°C] | Stress ratio | Mean stress [MPa] | Alternating stress [MPa] | Cycles |
|---|---|---|---|---|
| blur | blur | blur | blur | |
| blur | blur | blur | blur | |
| blur | blur | blur | blur |
Coefficient thermal expansion
| Related Temperature [°C] | Temperature [°C] | Coefficient thermal expansion [10^-6*K^-1] |
|---|---|---|
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
Designation
| Designation | Material number | Source |
|---|---|---|
| blur | blur | blur |
| blur | blur |
Classification
| WIAM Material | Treatment | Semi-finished product | Dimension [mm] | Load type | Failure criteria | Rolling direction | Maximum stress [MPa] | Strain at maximum stress [%] | Source description |
|---|---|---|---|---|---|---|---|---|---|
| blur | blur | blur |
Linear-elastic
| Temperature [°C] | Young's modulus [GPa] | Bulk modulus [GPa] | Shear modulus [GPa] | Poisson's ratio |
|---|---|---|---|---|
| blur | blur | |||
| blur | blur | |||
| blur | blur | |||
| blur | blur | |||
| blur | blur | |||
| blur | blur | |||
| blur | blur | |||
| blur | blur | |||
| blur | blur |
Coefficient thermal expansion
| Related Temperature [°C] | Temperature [°C] | Coefficient thermal expansion [10^-6*K^-1] |
|---|---|---|
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
| blur | blur | blur |
Classification
| WIAM Material | Treatment | Semi-finished product | Dimension [mm] | Load type | Failure criteria | Rolling direction | Maximum stress [MPa] | Strain at maximum stress [%] | Source description |
|---|---|---|---|---|---|---|---|---|---|
| blur | blur | blur | blur |
Yield strength
| Temperature [°C] | 0.1% Proof strength [MPa] | 0.2% Proof strength [MPa] | Yield strength [MPa] |
|---|---|---|---|
| blur | blur | ||
| blur | blur | ||
| blur | blur | ||
| blur | blur | ||
| blur | blur | ||
| blur | blur | ||
| blur | blur | ||
| blur | blur | ||
| blur | blur | ||
| blur | blur | ||
| blur | blur |
Tensile strength
| Temperature [°C] | Tensile strength [MPa] |
|---|---|
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |
| blur | blur |