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Nickel Based Investment Cast Alloy Specifications

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Nickel Based Alloy Chemistry
	C Max	Mn Max	Si Min-Max	Cr Min-Max	Ni Min-Max	Mo Min-Max	P Max	S Max	Cu Min-Max	Fe Min-Max	Co	V	W	Other	Melting Range
Alloy Type
NI-B N7M Investment Cast	0.07	1.00	1.00	1.0 Max	Bal.	30.0-33.0	0.04	0.03		3.00 Max					2375-2495
NI-C CW-12MW Investment Cast	0.12	1.00	1.00	15.5-17.5	Bal.	16.0-18.0	0.04	0.03		4.5-7.5		0.20-0.40	3.75-5.25		2310-2450
NI-X AMS5390D Investment Cast	0.10	1.00	1.00	20.50-23.00	Bal.	8.00-10.00	0.04	0.03		17.00-20.00	0.50-2.50		0.20-1.00	Se 0.0050 Max B 0.010 Max	2300-2470
NI-625 CW-6MC Investment Cast	0.06	1.00	1.00	20.0-30.0	Bal.	8.00-10.00	0.015	0.015		5.00 Max				Cb(Nb) 3.15-4.50	2325-2375
Monel E M30C Investment Cast	0.30	1.50	1.0-2.0		Bal..		0.03	0.03	26.0-33.0	3.5				Cb(Nb) 1.0-3.0	2300-2350

 

C - Carbon, Mn – Manganese, Si - Silicon, Cr – Chromium, Ni - Nickel, Mo - Molybdenum, P - Phosphorous, S - Sulfur, Cu - Copper, Fe - Iron, Co - Cobalt, V - Vanadium, W - Tungsten, Se - Selenium, B - Boron, Cb - Columbium, Nb - Niobium.

Nickel Based Alloy Properties

 

Nickel Based Alloy Properties
	Condition	Tensile Strength		0.2% Yield Strength		% Elongation Range (2.5 cm or 1”)	Hardness Range or Max
Alloy Type		English psi	Metric MPa	English psi	Metric MPa
NI-B (N7M) Investment Cast	Solution Annealed	76,000- 95,000	525-655	40,000- 60,000	276-414	20-30	90 Rb Max
NI-C (CW-12MW) Investment Cast	Solution Annealed	72,000- 90,000	496-621	40,000- 60,000	276-414	4.0 Min	90 Rb max
NI-X (AMS5390D) Investment Cast	As Cast RT	63-70,000	434-483	41-45,000	283-310	10-15	96 Rb max
NI-625 (CW-6MC) Investment cast	Solution Annealed	70,000-90,000	483-621	40,000- 60,000	276-414	25-35	90 Rb Max
Monel E (M30C) Investment Cast	As Cast	65-80,000	448-552	33-40,000	227-276	25-35	65-80 Rb

 

Mechanical Property values are for information only. They are determined from test bars and do not necessarily apply to castings. Any requirements for mechanical properties that are beyond the above information must be discussed with and agreed to by WPCC.

Cross-Index of Various Alloy Designations For Nickel Based Investment Cast Alloys

 

Nickel Based Alloy Cross-Index
Alloy or Type	AMS	Other Designation
NI-B Investment Cast		ASTM A494 N7M
NI-C Investment Cast		ASTM A494 CW-12MW
NI-X Investment Cast	5390D
NI-625 Investment cast		ASTM A494 CW-6MC
Monel E Investment Cast		ASTM A494 M30C