Cobalt Based Vacuum Melted Superalloys

Home > Products > Superalloy Bars > Cobalt Based Vacuum Melted Superalloys

Product Details

Longda Super alloy company’s Cobalt alloy bars FSX414, CoCrMo,X40,X45 etc are high purity, consistent quality and homogenized that satisfied to our customers home and abroad. Cobalt alloys features and properties are as follows:
• Cobalt alloys have higher melting points than nickel (or iron) alloys. This gives them the ability to absorb stress to a higher absolute temperature.
• Cobalt alloys give superior hot corrosion resistance to gas turbine atmospheres, this is due to their high chromium content.
• Cobalt alloys show superior thermal fatigue resistance and weldability over nickel alloys.
• Composition and Structure
• Cobalt alloys are termed austenitic in that the high temperature “Face Centred Cubic” phase is stabilised at room temperature.

They are hardened by carbide precipitation, thus carbon content is critical. Chromium provides hot corrosion resistance and other refractory metals are added to give solid solution strengthening – tungsten and molybdenum – and carbide formation – tantalum, niobium, zirconium, hafnium.

Cobalt Based Super alloys

Alloy Name	UNS No.	BS NO.	AMS	Rolls-Royce	GE	Snecma	Others
CoCrMo			5384				HS21 , ASTM F75
FSX414					B50A910
X40			5382	MSRR7049 , 7122	C50TF21	DMD403.32	HS31 , PWA648
X45					B50A3748	DMD405.32
MM302							PWA657
MM509					B50TF89	DMD.401-32	PWA647

Cobalt Based Super alloys Chemical Composition

Alloy Name	AI	B	C	Nb	Co	Cr	Fe	Mn	Mo	Ni	Si	Ta	Ti	W	ZR	Others
CoCrMn			0.23		Bal	28.0		0.50	6.0		0.80
FSX414		0.100	0.25		Bal	29.5		0.7		11.0	0.90			7.0
X40			0.25		Bal	25.5		0.8		10.5	0.80			7.5
X45		0.100	0.25		Bal	25.5		0.5		10.5	0.80			7.5
MM302		0.005	0.85		Bal	21.5								10.0	0.02
MM509			0.60		Bal	23.5				10.0		3.5	0.2	7.0	0.45

Products