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China Ni-Resist Ductile Iron Factory

There are two families of Ni-Resist austenitic cast irons.These are the standard or flake graphite alloys and the ductile or spheroidal graphite alloys. As time passes, the spheroidal grades, because of higher strength, ductility and elevated temperature properties, are becoming more prominent.

Ni-Resist ductile iron is a special type of ductile iron containing a high proportion of nickel, typically above 20%. This unique alloy composition endows Ni-Resist ductile iron with excellent performance and a wide range of applications.

Superior Performance:

Corrosion Resistance: The high nickel content gives this material excellent corrosion resistance, allowing it to maintain stable performance even in harsh environments.

Wear Resistance: Ni-Resist ductile iron exhibits excellent wear resistance, making it suitable for manufacturing parts requiring long-term use and frequent wear.

Strength and Hardness: Compared to ordinary ductile iron,Ni-Resist ductile iron has higher strength and hardness, enabling it to withstand greater loads and pressures.

Wide Applications:

Automotive Industry: In automotive engine parts manufacturing,Ni-Resist ductile iron is widely used in the production of critical components such as cylinder liners, crankshafts, and camshafts.

Machinery Manufacturing: In the machinery manufacturing industry, Ni-Resist ductile iron is commonly used to manufacture gears, bearing housings, rollers, and other parts to improve their wear and corrosion resistance.

Aerospace: In the aerospace field,Ni-Resist ductile iron is used to manufacture turbine blades, engine components, and other critical components operating at high temperatures and pressures.

Chemical Compositions of Spheroidal Graphite Ni-Resist Alloys, %

Common Name	Ni	Cr	Si	Cu	Mn	C max	Other
NiResist D-2W	18.0-22.0	1.75-2.25	1.0-3.0	0.5max	0.70-1.25	3	-
NiResist D-2V	18.0-22.0	1.50-2.00	1.5-2.2	0.5max	0.5-1.5	3	12-20Nb
NiResist D-2B	18.0-22.0	2.75-4.0	1.5-3.0	0.5max	0.70-1.25	3	-
NiCrosist Sphaeroidal D-2C	18.0-22.0	1.0-2.5	4.5-5.5	0.5max	0.5-1.5	3	-
NiResist D-2M	21.0-24.0	0.5max	1.0-3.0	0.5max	1.8-2.4	2.9	-
NiResist D-3A	22.0-24.0	0.2max	1.5-2.5	0.5max	3.75-4.50	2.6	-
NiResist D-3	28.0-32.0	1.0-1.5	1.0-2.8	0.5max	1.0max	2.6	-
NiResist D-4A	28.0-32.0	2.5-3.5	1.0-2.8	0.5max	1.0max	2.6	-
NiResist D-4AA	29.0-32.0	1.5-2.5	4.0-6.0	0.5max	0.5-1.5	2.6	-
NiResist D-428	0-32.0	4.5-5.5	5.0-6.0	0.5max	1.0max	2.6	-
NiResist D-4B	0-36.0	0.1 max	1.0-2.8	0.5max	1.0max	2.4	-
NiResist D-5B	34.0-36.0	2.0-3.0	1.0-2.8	0.5max	1.0max	2.4	-
NiResist D-5S	34.0-37.0	1.15-2.25	4.9-5.5	0.5max	1.0max	2.3	-
NiResist D-6	12.0-14.0	0.2max	2.0-3.0	0.5max	6.0-7.0	3	-

Mechanical Properties of Spheroidal Graphite Ni-Resist Alloys

Alloy	Tensile Strength MPa(ksi)	Yield Strength 0.2% Offset MPa(ksi)	Elongation %	Modulus of Elasticity MPa(ksi)x10³	Charpy Impact Kg-m(ft-lb)	Brinell Hardness
Ni-Resist D-2	370-480 (53-69)	210-250 (30-36)	7-20	112-130 (16-19)	14-27 (101-197)	140-200
Ni-Resist D-2W	370-480 (53-69)	210-250 (30-36)	8-20	112-130 (16-19)	14-27 (101-197)	140-200
Ni-Resist D-2B	390-500 (56-71)	210-260 (30-37)	7-15	112-133 (16-19)	12 (87)	150-255
Nicrosilal Spheronic	370-440 (53-63)	210-260 (30-37)	10-18	-	-	180-230
Ni-Resist D-2C	370-450 (53-64)	170-250 (24-36)	20-40	85-112 (12-16)	21-33 (153-240)	130-170
Ni-Resist D-2M	440-480 (63-69)	210-240 (30-34)	25-45	120-140 (17-20)	24-34 (175-248)	150-180
Ni-Resist D-3A	370-450 (53-64)	210-270 (30-39)	13-18	112-130 (16-19)	16 (117)	130-190
Ni-Resist D-3	370-480 (53-69)	210-260 (30-37)	7-18	92-105 (13-15)	8 (59)	140-200
Ni-Resist D-4A	380-500 (54-71)	210-270 (30-39)	10-20	130-150 (19-21)	10-16 (73-117)	130-170
Ni-Resist D-4	390-500 (56-71)	240-310 (34-44)	1-4	91 (13)	-	170-250
Ni-Resist D-5	370-420 (53-60)	210-240 (30-34)	20-40	112-140 (16-20)	20 (145)	130-180
Ni-Resist D-5B	370-450 (53-64)	210-290 (30-41)	7-10	112-123 (16-18)	7 (56)	140-190
Ni-Resist D-5S	370-500 (53-71)	200-290 (29-41)	10-20	110-145 (16-21)	12-19 (87-138)	130-170
Ni-Resist D-6	390-470 (56-67)	210-260 (30-37)	15-18	140-150 (20-21)	-	120-150

FREQUENTLY ASKED QUESTIONS

What Ni-Resist grades do you supply?

We offer a range of spheroidal graphite Ni-Resist casting grades, including those specified in A439/A439M - 18 These include both ferritic and austenitic variants designed for high corrosion and thermal resistance.

Can you produce Ni-Resist castings to custom specifications?

Yes. We can manufacture Ni-Resist castings to meet specific chemical and mechanical requirements, including adjustments for thermal expansion, wear resistance, or operating temperature.

What is the maximum casting weight for Ni-Resist components?

We can produce Ni-Resist castings up to 60 kg, depending on the alloy grade, design geometry, and intended application.

Are your Ni-Resist castings compliant with recognised standards?

Absolutely. Our Ni-Resist grades are produced in accordance with A439/A439M - 18 and other applicable specifications, with full traceability and quality control.

What industries commonly use Ni-Resist castings?

Ni-Resist alloys are widely used in the automotive, pump, marineand chemical processing sectors — particularly where resistance to heat, corrosion, or thermal shock is critical.

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