1.4980
1.4980 / A-286 / T200
Stainless austenitic Cr-Ni steel with outstanding heat resistance and ductility at low temperatures. The mechanical-technological properties can be specifically adjusted by precipitation hardening. Good creep strength. The remelted variant (ESU or VAR) offers maximum homogeneity and improved corrosion resistance.
The material 1.4980 is an iron-nickel-chromium alloy. The additional alloying elements aluminum and titanium allow this material to undergo precipitation hardening (aging) through the formation of intermetallic phases. The addition of molybdenum increases the mechanical properties and resistance to creep at high temperatures.
At temperatures up to 700°C, the material 1.4980 offers excellent high-temperature strength and is clearly superior to low-alloy steels or common stainless steels. Components for high mechanical stress and creep strength requirements at ambient temperatures up to 700°C.
Application examples
| Parts for gas turbines in aviation and power plant construction | Thermal process engineering |
| Oil and gas offshore technology | Non-magnetic cryogenic equipment |
| Turbines, compressors and rotors | Automotive industry |
| Fasteners | Nuclear energy technology |
| Chemical process industry | Cryogenics |
| Material: 1.4980 / Alloy A-286 | UNS: S66286 | AISI: 660 |
| DIN EN: 10269 02/14 | VdTÜV Datasheet: 435/3 | Others: ASTM A 453, A 453M -17 Grade B ASTM A 638 /A 638M -20 Type 2 ASME BPVC II. A SA- 453 /SA-453M 2021 SAE-AMS 5732/J 2018-10 ANSI/NACE MR 0175 /ISO15156-3 2015 ANSI/NACE MR 0103 / ISO17945:2015 (only chem. Analysis) |
| Specification, Class | Yield strength [N/mm²] | Tensile strength [N/mm²] | Fracture constriction [Z] | Stretch [%] | Hardness [HBW] | Notched bar impact work @ RT -196 °C [J] CVN |
| DIN | ≥ 600 | 900 – 1150 | ≥ 18 | ≥ 15 | – | ≥ 50 ≥ 40 |
| A453, A-C / A638 | ≥ 585 | ≥ 895 | ≥ 18 | ≥ 15 | 248 – 341 | – – |
| A453, D (≤ 63,5 mm) | ≥ 725 | ≥ 895 | ≥ 18 | ≥ 15 | 248 – 341 | – – |
| A453, D (> 63,5 mm) | ≥ 655 | ≥ 825 | ≥ 18 | ≥ 15 | 248 – 341 | – – |
| Specification, Class | Temperature [° C] | Time Yield Limit [N/mm²] | Testing time [h] | Stretch [%] |
| A453, A-C | 650 | ≥ 358 | ≥ 100 | ≥ 5 |
| A638 | 650 | ≥ 450 | ≥ 23 | ≥ 3 |
| Specification, Class | Temperature [°C] / Duration | Cooling medium | |
| Solution annealing(+AT) | A453, A / A638, Type 1 A453, B / A638, Type 2 ~DIN, ~VdTÜV | 900 ± 14 / min. 2 h 980 ± 14 / min. 1 h | Water Water |
| Precipitation hardening(+P) | A453 / ~A638 / ~DIN / ~VdTÜV | 720 ± 14 / min. 16 h | Air |
| C | Si | MN | P | S | Cr | Mo | Ni | V | Ti | Al | B | |
| min. | 0,03 | – | 1,00 | – | – | 13,5 | 1,0 | 24,0 | 0,10 | 1,90 | – | 0,003 |
| max. | 0,08 | 1,00 | 2,00 | 0,025 | 0,015 | 16,0 | 1,5 | 27,0 | 0,5 | 2,30 | 0,35 | 0,100 |
The material 1.4980 should be machined in the annealed condition if possible. Because of its tendency to work harden, a low cutting speed should be selected. The depth of cut should be selected so that a previous work hardening zone can be undercut. If possible, the cutting tool should be kept constantly engaged.
IMPORTANT DOCUMENTS
All information on the properties and recommendations on the usability of the material and its forms of delivery are given after careful research and to the best of our knowledge. However, no guarantee can be assumed. In the case of an order, they always require a special written agreement.
SUBMIT REQUEST
| Dr. Stefan Pretterhofer
Phone |
