Nickel Alloy 201 Flanges

Nickel Alloy 201 Flanges are high-temperature, corrosion-resistant fittings made from a low-carbon, commercially pure nickel alloy (UNS N02201). With a nickel content of 99% minimum and low carbon (0.15% max), the alloy resists graphitization and intergranular corrosion above 600°F (315°C). Its chemical makeup also includes iron 0.4% max, manganese 0.35% max, silicon 0.1% max, copper 0.25% max, and sulfur 0.01% max. These flanges show excellent strength and reliability with a tensile strength of 67,000 psi (462 MPa), yield strength of 21,500 psi (148 MPa), elongation of 45%, density of 8.9 g/cm³, and a melting point of 1446 °C (2635 °F). Metracore Alloys manufactures these flanges with precision, ensuring durability in harsh and demanding environments.

Nickel alloy 201 flanges supplier, Nickel alloy 201 flanges manufacturer, Nickel 201 flanges price

Available in sizes from 1/2″ to 60″, Nickel 201 Flanges are produced to ASTM B564 / ASME SB564 standards. They are valued for their corrosion resistance in acids, alkalis, and neutral salts. The alloy also forms a stable oxide film, offering strong oxidation resistance. High tensile strength and flexibility make them dependable in both low and high temperatures. With excellent weldability Nickel 201 weld neck flanges and other types maintain integrity during fabrication without the risk of intergranular corrosion. Their safe temperature performance up to 315°C ensures reliability in continuous service.

These flanges serve in industries where purity, heat resistance, and corrosion protection are critical. In petrochemical and chemical plants, they handle aggressive media with ease. The pulp and paper industry uses them in caustic environments.

Power plants rely on them in high-pressure systems, while the food sector uses them to avoid contamination. Offshore oil and gas fields depend on Nickel 201 blind flanges for their seawater resistance.

They are also common in caustic evaporators, sodium hydroxide handling, heat exchangers, and condensers. Manufacturing involves forging, machining, threading, and grooving, followed by heat treatment and strict quality checks.

Nickel 201 SO flanges, Nickel 201 blind flanges, Nickel 201 flat face flange

Each of our flanges are supplied with Material Test Certificates (MTC) in line with EN 10204 3.1 and EN 10204 3.2. To ensure safe delivery we offer packaging like wooden crates, pallets, cardboard boxes, and bubble wrap depending on size and type. As a trusted Nickel 201 Flanges manufacturer we deliver products ready for crucial service in chemical, marine and power industries.

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Table of Content

Nickel Alloy 201 Flanges Specification

Types of Nickel Alloy 201 Flanges

Manufacturing Types of Nickel Alloy 201 Flanges

Nickel Alloy 201 Flanges Face Forms

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Technical Details of Nickel Alloy 201 Flanges

Equivalent Grades of ASTM B564 Nickel 201 Flanges

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
Nickel 201	2.4068	N02201	NW 2201	NA 12	НП-2	–	LC-Ni 99

Nickel Alloy 201 Flanges Chemical Composition

Grade	C	Mn	Si	S	Cu	Fe	Ni
Nickel 201	0.02 max	0.35 max	0.35 max	0.01 max	0.25 max	0.40 max	99.0 min

Nickel 201 Alloy Flanges Mechanical Properties

Element	Density	Melting Point	Tensile Strength	Yield Strength (0.2% Offset)	Elongation
Nickel 201	8.9 g/cm3	1446 °C (2635 °F)	Psi – 67000 , MPa – 462	Psi – 21500 , MPa – 148	45 %

Dimensions of Nickel 201 Flanges

Standard	Class	Diameter	Bolt Circle Diameter	Number of Bolts	Bolt Size	Diameter of Bolt Hole
AS4087	PN14	95	67	4	M12	14
AS 2129 Flange	Table C	95	67	4	13	14
	Table D	95	67	4	13	14
	Table E	95	67	4	13	14
	Table F	95	67	4	13	14
	Table H	114	83	4	16	17
	Table J	114	83	4	16	17
ANSI B16.5	ANSI 150	89	60	4	13	16
	ANSI 300	95	67	4	13	16
	ANSI 600	95	67	4	13	16
	ANSI 900	121	83	4	19	22
	ANSI 1500	121	83	4	19	22
ISO 7005 (DIN) Flange	PN6	80	55	4	M10	11
	PN10	95	65	4	M12	14
	PN16	95	65	4	M12	14
	PN20	90	60.5	4

Pressure Ratings of Nickel ASTM B564 UNS N02201 Alloy Flanges

Standard	Pressure Rating
DIN	PN10 PN25 PN40 PN6 PN16 PN64
ANSI	150 LBS 600 LBS 1500 LBS 300 LBS 900 LBS 2500 LBS
UNI / EN / DIN	6 Bar 10 Bar 16 Bar 25 Bar 40 Bar
JIS	20K 16K 5K 40K 63K 10K 30K

Size of Nickel Alloy 201 Stainless Steel Flanges

Size in (In)	Size in (Mm)	No of Bolts	Bolt UNC Size	RF Stud Length	Stud ISO Size	Machine Flange Bolt Len
1/2	15	4	1/2	55	M14	50
3/4	20	4	1/2	65	M14	50
1	25	4	1/2	65	M14	55
1 ^1/2	40	4	1/2	70	M14	65
2	50	4	5/8	85	M16	70
3	80	4	5/8	90	M16	75
3 ^1/2	90	8	5/8	90	M16	75
6	150	8	3/4	100	M20	85
8	200	8	3/4	110	M20	90
10	250	12	7/8	115	M24	100
1 ^1/4	32	4	1/2	70	M14	55
2 ^1/2	65	4	5/8	90	M16	75
5	125	8	3/4	95	M20	85
16	400	16	1	135	M27	115
18	450	16	1 1/8	145	M30	125
20	500	20	1 1/8	160	M30	140

Manufacturing Process of Nickel Alloy 201 Flanges

Nickel Alloy 201 Flanges Application

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