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Quality 1.3980
General Product Description
Material number 1.3980
Short name according to EN 1.3980
AISI / UNS / Alloy Grade 660B, UNS S66286
Applicable standards SEW 390
Treatment hardened
Variations
| Quality | Treatment | Shape | Dimension (mm) |
|---|---|---|---|
| 1.3980 | hardened |  Round | 6,5 - 310 |
Description
The areas of application for 1.3980 are power plant construction, mechanical engineering, power generation
Chemical composition (in %)
| C | Cr | Mo | Mn | Si | P | Ni | S | V | Al | T | B | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | - | 13,5 | 1,0 | - | - | - | 24,0 | - | 0,10 | - | 1,9 | 0,003 |
| Max | 0,08 | 16,0 | 1,5 | 2,0 | 1,0 | 0,03 | 27,0 | 0,015 | 0,50 | 0,35 | 2,3 | 0,01 |
| Element | Min | Max |
|---|---|---|
| C | - | 0,08 |
| Cr | 13,5 | 16,0 |
| Mo | 1,0 | 1,5 |
| Mn | - | 2,0 |
| Si | - | 1,0 |
| P | - | 0,03 |
| Ni | 24,0 | 27,0 |
| S | - | 0,015 |
| V | 0,10 | 0,50 |
| Al | - | 0,35 |
| T | 1,9 | 2,3 |
| B | 0,003 | 0,01 |
Mechanical properties (precipitation hardened)
Tensile strength Rm 900–1200 N/mm2
0.2% proof stress Rp0.2 ≥ 600 N/mm2
Elongation at break A5 ≥ 15 %
Notched impact energy (ISO-V) ≥ 40 J
Hardness 300-380 HB
Magnetizability No
Typical areas of application
power plant construction
Mechanical engineering
power generation
turbine equipment
Aerospace Industry
General properties (precipitation hardened)
Corrosion Resistance
Weldability
Forgeability
Tensionability
Note
All information in this data sheet has been compiled to the best of our knowledge and belief. It is for information purposes only and does not constitute a assured property or guarantee. For the suitability of the material in specific applications, we recommend carrying out appropriate inspections and tests. Any liability for damage or errors is excluded.