A286, X6NiCrTiMoVB25-15-2, 1.4980 is an austenitic age-hardenable iron based superalloy Heat resistant steel with high strength, creep resistance, low magnetic permeability and high oxidation resistance. Endurance properties are obtained by emitting MC, M6C carbides by means of nickel, titanium and aluminum.It retains the appropriate mechanical properties to a temperature of about 650 - 700 ℃. In addition, it exhibits suitable strength properties at extremely low temperatures. Heat resistant to a temperature of about 800 - 900 ℃.Used as a steel for aviation and power engineering for heavy-duty rotors, gas turbine blades, steam turbines, pressure equipment parts and reactors, jet engines and rockets, exhaust systems. Also used in cryogenics and cryotechnics.
| AMS 5525 | AMS 5858 | GE B50T1181 | GE B50T12 |
| AMS 5732 | AMS 5804 | DIN 1.4944 | GE B50T81 |
| AMS 5731 | AMS 5853 | DIN 1.4943 | SPS M250 |
| AISI 662 | AMS 5805 | ASTM A638 Grade 660 | |
| AMS 5726 | AMS 5737 | ASTM A453 Grade 660 | |
| AISI 660 | AMS 5734 | AMS 5895 |
Light forging can be performed in the temperature range of 871-1010°C (1600-1850°F). Heavy forging can be done in the temperature range of 1010-1204°C (1850-2200°F).
Pyrotool A can be cold formed.
Pyrotool A can be solution annealed at 982°C (1800°F) and oil quenched, which should be followed by holding at 718°C (1325°F) for 16 h and air cooling. This treatment enhances high strength for the alloy.
This super alloy can be aged at 718°C (1325°F) for 16 h and air cooled to gain high strength. Prior to aging the alloy should solution heat treated.
| Grade | Chemical Composition WT % | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Mn | Si | P | S | Cr | Mo | Ni | V | Ti | Al | B | Ce | |
| X6NiCrTiMoVB25-15-2, 1.4980 | 0.03 - 0.08 | 1.0 - 2.0 | Max 1.00 | Max 0.025 | Max 0.015 | 13.5 - 16.0 | 1.0 - 1.5 | 24.0 - 27.0 | 0.1 - 0.5 | 1.90 - 2.30 | Max 0.35 | 0.003 - 0.010 | - |
| SEW 390 X5NiCrTiMoV26-15, 1.3980 | Max 0.8 | Max 2.0 | Max 1.0 | Max 0.030 | Max 0.015 | 13.5 - 16.0 | 1.0 - 1.5 | 24.0 - 27.0 | 0.1 - 0.5 | 1.9 - 2.3 | Max 0.35 | 0.003 - 0.010 | - |
| X5NiCrTiMoVB25-15-2, 1.4606 | Max 0.08 | 1.0 - 2.0 | Max 1.00 | Max 0.025 | Max 0.015 | 13.0 - 16.0 | 1.0 - 1.5 | 24.0 - 27.0 | 0.1 - 0.5 | 1.90 - 2.30 | Max 0.35 | 0.001 - 0.010 | - |
| Z5NCTDV25-15B, XN26AW, X.N26A.W | Max 0.05 | Max 2.00 | Max 0.75 | Max 0.030 | Max 0.015 | 13.5 - 16.0 | 1.0 - 1.5 | 24.0 - 27.0 | 0.1 - 0.5 | 1.80 - 2.30 | Max 0.40 | 0.0025- 0.008 | - |
| 08Ch15N25T2MFR, EP674, 08Kh15N25T2MFR, 08Х15Н25Т2МФР, ЭП674 | Max 0.08 | 1.2 - 1.7 | Max 0.70 | Max 0.020 | Max 0.015 | 14.0 - 16.0 | 1.1 - 1.6 | 24.0 - 26.0 | 0.2 - 0.4 | 1.90 - 2.40 | Max 0.30 | Max 0.0100 | Max 0.01 |
| Z6NCTDV15-15B, X.N26T.W, XN26TW, X.N 26 T.W | 0.03 - 0.08 | Max 2.00 | Max 1.00 | Max 0.020 | Max 0.015 | 13.5 - 16.0 | 1.0 - 1.5 | 24.0 - 27.0 | 0.1 - 0.5 | 1.90 - 2.30 | Max 0.35 | 0.0025 - 0.008 | - |
| LW X4NiCrTi25-15, 1.4944, LW 4944 | Max 0.08 | Max 2.00 | Max 1.00 | Max 0.025 | Max 0.015 | 13.5 - 16.0 | 1.0 - 1.5 | 24.0 - 27.0 | 0.1 - 0.5 | 1.90 - 2.30 | Max 0.35 | 0.003 - 0.010 | - |
| UNS S66286, K66286 | Max 0.08 | Max 2.00 | Max 1.00 | Max 0.040 | Max 0.030 | 13.5 - 16.0 | 1.0 - 1.5 | 24.0 - 27.0 | 0.1 - 0.5 | 1.90 - 2.35 | Max 0.35 | 0.001 - 0.010 | - |
| A-286, Alloy 286, Grade 660 | Max 0.08 | Max 2.00 | Max 1.00 | Max 0.040 | Max 0.030 | 13.5 - 16.0 | 1.0 - 1.5 | 24.0 - 27.0 | 0.1 - 0.5 | 1.90 - 2.35 | Max 0.35 | 0.001 - 0.010 | - |
| 06Cr15Ni25Ti2MoAlVB, GH 2132, GH132 | Max 0.08 | Max 2.00 | Max 0.04 | Max 0.040 | Max 0.030 | 13.5 - 16.0 | 1.0 - 1.5 | 24.0 - 27.0 | 0.1 - 0.5 | 1.90 - 2.35 | Max 0.35 | 0.001 - 0.010 | - |
| Mechanical properties | ||
|---|---|---|
| Tensile strength | Rm | 900 - 1150 MPa |
| Yield point | Re | > 600 MPa |
| Elongation | A | > 15% |
| Density | ρ | 8.00 kg/dm3 |
| Modulus of elasticity | E | 211 GPa |
| Coefficient of thermal expansion | α | 17.0 - 18.5 ⋅ 10-1 |
| Heat conductivity | λ20℃ | 13 W ⋅ m-1 |
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.9 g/cm3 | 0.286 lb/in3 |
| Melting point | 1399°C | 2550°F |
Welding processes of super alloy Pyrotool A are similar to that of stainless steels. The area to be welded has to be properly cleaned. Preheating or post welding heat treatment is not required.
Super alloy Pyrotool A can be machined using all the common processes. Cemented carbide tools are recommended for use during turning operations.
A286, UNS S66286, 660, X6NiCrTiMoVB25-15-2, 1.4980, 1.4980, 1.3980, 1.4606, 1.4944, X 6 NiCrTiMoVB 25-15-2, 4980, X5NiCrTiMoVB25-15-2, 1.4606, Z5NCTDV25-15B, Z 5 NCTDV 25-15 B, XN26AW, X.N26A.W, 08Ch15N25T2MFR, EP674, EP 674, 08Х15Н25Т2МФР, ЭП674, Z6NCTDV15-15B, Z 6 NCTDV 15-15 B, X.N26T.W, XN26TW, X.N 26 T.W, X4NiCrTi25-15, 1.4944, LW 4944, S66286, S 66286, K66286, K 66286, A-286, A 286, Alloy 286, 06Cr15Ni25Ti2MoAlVB, EZ6NCT25, FE-PA2601, FE-PA92-HT, Grade 660, DIN 1.4944, DIN X6NiCrTiMoV26-15, DIN 1.4944.4, DIN 1.4980, DIN X5NiCrTi26-15, DIN X6NiCrTiMoVB25-15-2, AFNOR X6NiCrTiMoV26-15, AFNOR X6NiCrTiMoVB25-15-2, BS X6NiCrTiMoV26-15, BS X6NiCrTiMoVB25-15-2, AISI S66286, AISI HEV-7, SAE 660, SAE S66286, SAE HEV-7, JIS SUH660, JIS SUS616, EN X6NiCrTiMoV26-15, EN 1.4944, EN X6NiCrTiMoVB25-15-2, EN 1.4980, UNS S66286, ISO X6NiCrTiMoVB25-15-2, ISO 4606-661-86-X, ISO 4980-662-86-X, ISO PM42J
| Grade | Shape | Dimensionmm | Qty.kg |
|---|---|---|---|
| A286 | Round bar | Φ8mm | 0.914 |
| A286 | Round bar | Φ16.50mm | 818 |
| A286 | Round bar | Φ18mm | 292 |
| A286 | Round bar | Φ25mm | 989 |
| A286 | Round bar | Φ26mm | 1565 |
| A286 | Round bar | Φ125mm | 1689 |
| A286 | Round bar | Φ155mm | 3986 |
| A286 | Round bar | Φ185mm | 6985 |
Steel grade
Special steel