X6NiCrTiMoVB25-15-2, 1.4980


X6NiCrTiMoVB25-15-2, 1.4980, 1.3980, 1.4606, 1.4944, A-286, Grade 660 Super alloys contain good oxidation and creep resistance iron-based Super alloys,

X6NiCrTiMoVB25-15-2, 1.4980 - Introduction and Application

Super alloys contain good oxidation and creep resistance iron-based Super alloys 1.4980, X6NiCrTiMoVB25-15-2, A-286, Grade 660

Super alloys or high performance iron-based. these alloys can be strengthened by precipitation hardening, solid-solution hardening and work hardening methods.super alloys contain good oxidation and creep resistance and are available in varied shapes. These alloys can function under high mechanical stress and high temperatures and also in places that require high surface stability. 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.

GradeChemical Composition  WT %
CMnSiPSCrMoNiVTiAlB
X6NiCrTiMoVB25-15-2, X 6 NiCrTiMoVB 25-15-2,1.4980, 49800.03 - 0.081.0 - 2.0<1.00<0.025<0.01513.5 - 16.01.0 - 1.524.0 - 27.00.1 - 0.51.90 - 2.30<0.350.003 - 0.010
X5NiCrTiMoV26-15, X 5 NiCrTiMoV 26-15, 1.3980 SEW 390<0.8<2.0<1.0<0.030<0.01513.5 - 16.01.0 - 1.524.0 - 27.00.1 - 0.51.9 - 2.3<0.350.003 - 0.010
EN X5NiCrTiMoVB25-15-2, 1.4606<0.081.0 - 2.0<1.00<0.025<0.01513.0 - 16.01.0 - 1.524.0 - 27.00.1 - 0.51.90 - 2.30<0.350.001 - 0.010
AFNOR Z5NCTDV25-15B, Z 5 NCTDV 25-15 B, XN26AW - X.N26A.W<0.05<2.00<0.75<0.030<0.01513.5 - 16.01.0 - 1.524.0 - 27.00.1 - 0.51.80 - 2.30<0.400.0025- 0.008
GOST 08Ch15N25T2MFR, EP674, EP 674, 08Kh15N25T2MFR, 08Х15Н25Т2МФР, ЭП674<0.081.2 - 1.7<0.70<0.020<0.01514.0 - 16.01.1 - 1.624.0 - 26.00.2 - 0.41.90 - 2.40<0.30<0.0100
AFNOR Z6NCTDV15-15B, Z 6 NCTDV 15-15 B0.03 - 0.08<2.00<1.00<0.020<0.01513.5 - 16.01.0 - 1.524.0 - 27.00.1 - 0.51.90 - 2.30<0.350.0025 - 0.008
LW X4NiCrTi25-15, 1.4944, LW 4944<0.08<2.00<1.00<0.025<0.01513.5 - 16.01.0 - 1.524.0 - 27.00.1 - 0.51.90 - 2.30<0.350.003 - 0.010
UNS S66286, S 66286, K66286, K 66286<0.08<2.00<1.00<0.040<0.03013.5 - 16.01.0 - 1.524.0 - 27.00.1 - 0.51.90 - 2.35<0.350.001 - 0.010


Physical Properties

The following table shows the physical properties of super alloy A-286.

PropertiesMetricImperial
Density7.92 g/cm30.286 lb/in3
Melting point1399°C2550°F

Mechanical Properties

The mechanical properties of super alloy 1.4980, X6NiCrTiMoVB25-15-2, A-286, Grade 660 are displayed in the following table.

PropertiesMetricImperial
Tensile strength1035 MPa150100 psi
Yield strength (@strain 0.200%)759 MPa110000 psi
Elongation at break25%25%
Reduction of area40%40%
Hardness, Brinell (estimated from Rockwell C value for Brinell test with 3000 kg load/10 mm diameter ball)304304
Hardness, Knoop (estimated from Rockwell C value)330330
Hardness, Rockwell C3232
Hardness, Vickers (estimated from Rockwell C value)318318

Equivalent materials to super alloy 1.4980, A-286 are given in the table below.

AISI 660 - AMS 5525, AMS 5726, AMS 5732, AMS 5734, AMS 5731, AISI 662, AMS 5737, AMS 5804, AMS 5895, AMS 5853, AMS 5805, AMS 5858, DIN 1.4943, SPS M250, DIN 1.4944, GE B50T81, GE B50T12, GE B50T1181, ASTM A453 Grade 660, ASTM A638 Grade 660

Welding

Welding methods used for stainless steels are also recommended for super alloy 1.4980, X6NiCrTiMoVB25-15-2, A-286, Grade 660. The area to be welded should be clean. Post welding heat treatment or preheating is not recommended for this alloy. Better welding results can be obtained when this alloy is solution annealed.

Forging

Conventional machining techniques are used to readily machine super alloy 1.4980, X6NiCrTiMoVB25-15-2, A-286, Grade 660. This machining process involves turning, drilling and milling. In the turning operations, the usage of cemented carbide tools is recommended for high cutting rates.

Heat Treatment

Super alloy A-286 is solution annealed at 982°C (1800°F), oil quenched, held for 16 h at 718°C (1325°F) and finally cooled in air. This heat treatment improves the strength of super alloy 1.4980, X6NiCrTiMoVB25-15-2, A-286, Grade 660.

Applications

Super alloy 1.4980, X6NiCrTiMoVB25-15-2, A-286, Grade 660 is used in gas turbine forgings, fasteners, superchargers, cryogenic equipment, missile components, corrosive deep well hardware and jet engines.


Melted process


X6NiCrTiMoVB25-15-2, 1.4980 - Chemical composition WT %


Mechanical Property of X6NiCrTiMoVB25-15-2, 1.4980


Equivalent grades of X6NiCrTiMoVB25-15-2, 1.4980