Mar-M509

Mar-M509 is a cobalt based precipitation hardening equiaxed cast superalloy, with carbide as the main strengthening phase and service temperature below 1050 ℃.

Equivalent Grades

Trademark	GB	GOST	ASTM	UNS	DIN	W.Nr.	NF	BS	JIS	SS
–	K6509	–	Mar-M509	–	–	–	–	–	–	–

Chemical Composition, %

Alloy

Mar-M509

0.55-0.65

≤0.4

≤0.1

≤0.015

23.0-24.0

9.0-11.0

Bal

6.5-7.5

0.15-0.25

3.0-4.0

0.3-0.6

≤1.5

Typical Physical and Mechanical Properties (RT, Solution Annealed)

Density, g/cm3	Melting Point, ℃	Tensile Strength, MPa	Yield Strength, MPa	ELongation, %	Hardness, HRB
8.86	1346-1395	780	465	5	/

Available Products and Specifications

Rod, Bar, Wire and Forgings	–
Plate, Sheet and Strip	–
Pipe and Tube	–
Welding Product	–
Others	–

Features

The Cr content in the alloy accounts for about 23%, and the carbide forming elements such as tantalum, tungsten and titanium are added at the same time, so the alloy has excellent heat-resistant corrosion resistance and high temperature strength.

Applications

The alloy is only used to make hot end components such as gas turbine engine turbine blades working below 1050 degrees. It is recommended to be applied to engines with harsh service conditions such as aeroengines and advanced marine engines