Hastelloy C22 PN16 Type 01 Flanges Order

On March 24, 2025, we were pleased to receive a repeat order from our long-standing client in Italy. This order, comprising Hastelloy C22 Type 01 Flanges in various sizes (DN 15 to DN 50) conforming to EN 1092-1, underscores the trust placed in our high-performance alloy products. The specific request for PN16 pressure rating and Type 01 design highlights its application in a demanding piping system. This successful transaction is a testament to the superior reliability of Hastelloy C22 Type 01 Flanges in corrosive environments.

Procurement List

ITEM	DESCRIPTION	Quantity	Unit
1	FLANGES B565 N06022 ( HASTELLOY C22 ) EN1092/1/01/B  PN 16 DN 15	4	EA
2	FLANGES B565 N06022 ( HASTELLOY C22 ) EN1092/1/01/B  PN 16 DN 25	10	EA
3	FLANGES B565 N06022 ( HASTELLOY C22 ) EN1092/1/01/B  PN 16 DN 40	2	EA
4	FLANGES B565 N06022 ( HASTELLOY C22 ) EN1092/1/01/B  PN 16 DN 50	21	EA
5	FLANGES BL. B565 N06022 ( HASTELLOY C22 ) EN1092/1/05 /B  PN 16 DN 25	2	EA
6	FLANGES B565 N06022 ( HASTELLOY C22 ) EN1092/1/01/05 /B  PN 16 DN 50	6	EA

Hastelloy C22 Material

Hastelloy C22 （N06022）is a nickel-chromium-molybdenum-tungsten alloy known for its exceptional corrosion resistance. It is designed to handle the most severe conditions, including oxidizing and reducing media.

Chemical Composition

CHEMICAL	LIMITS	Ni	Fe	Mn	C	Si	S	Cr	Mo	P	W	Co	V
Hastelloy C22	MIN	Balance	2.00					20.00	12.50		2.50
	MAX		6.00	0.50	0.02	0.08	0.02	22.50	14.50	0.02	3.50	2.50	0.35

Mechanical Properties

MATERIAL	T.S (MPA)	Y.S (MPA)	EL %
Hastelloy C22	690 min	276 min	30 min

Type 01 Flanges Introduction

According to the EN 1092-1 standard, Type 01 refers to Plate Flanges . As clearly specified in our Italian client’s order (e.g., FLANGES B565 N06022 EN1092/1/01/B), these flanges are characterized by a flat face and are designed to be connected to the pipe by fillet welding on both the hub and the backside. This design makes Hastelloy C22 Type 01 Flanges cost-effective and easier to align during installation compared to welding neck flanges, while still providing a robust connection suitable for the PN16 pressure rating.

PN16 Type 01 Flanges Dimension

DN	Mating dimensions					Bore diameters	Flange thickness
	Outside diameter	Diameter of bolt circle	Diameter of bolt hole	Bolting
	D	K	L	Number	Size	B1	C1
10	90	60	14	4	M12	18.0	14
15	95	65	14	4	M12	22.0	14
20	105	75	14	4	M12	27.5	16
25	115	85	14	4	M12	34.5	16
32	140	100	18	4	M16	43.5	18
40	150	110	18	4	M16	49.5	18
50	165	125	18	4	M16	61.5	20
65	185	145	18	8b	M16	77.5	20
80	200	160	18	8	M16	90.5	20
100	220	180	18	8	M16	116.0	22
125	250	210	18	8	M16	141.5	22
150	285	240	22	8	M20	170.5	24
200	340	295	22	12	M20	221.5	26
250	405	355	26	12	M24	276.5	29
300	460	410	26	12	M24	327.5	32
350	520	470	26	16	M24	359.5	35
400	580	525	30	16	M27	411.0	38
450	640	585	30	20	M27	462.0	42
500	715	650	33	20	M30	513.5	46
600	840	770	36	20	M33	616.5	55
700	910	840	36	24	M33	c	63
800	1 025	950	39	24	M36		74
900	1 125	1 050	39	28	M36		82
1 000	1 255	1 170	42	28	M39	c	90
1 200	1 485	1 390	48	32	M45	—	c
1 400	1 685	1 590	48	36	M45	—
1 600	1 930	1 820	56	40	M52	—
1 800	2 130	2 020	56	44	M52	—
2 000	2 345	2 230	62	48	M56	—
c  To be specified by the purchaser.

If you wish to learn about other dimensions for Type 01 flanges, please click the link below.

https://www.zzflange.com/category/en-1092-1-dimension/type-01/

Advantages of N06022 Type 01 Flanges

The combination of the superior alloy and the practical flange design creates a product with significant benefits. Hastelloy C22 Type 01 Flanges offer exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, crucial for the chemical industry. Their ability to withstand a wide range of chemicals makes them indispensable. The Type 01 plate design offers excellent cost-performance for many applications where the full integrity of a welding neck is not mandatory, providing easier installation and maintenance. Choosing our Hastelloy C22 Type 01 Flanges means investing in cost-effective corrosion resistance and reliability.

Application Areas

Thanks to their robust properties and practical design, Hastelloy C22 Type 01 Flanges are widely used in industries where corrosion is a primary concern. Key sectors include:

• Chemical and Petrochemical Processing: For less critical but still corrosive lines, tanks, and vessels.
• Pollution Control: Flue gas desulfurization (FGD) systems.
• Pharmaceutical Industry: Process piping requiring easy disassembly.
• Pulp and Paper Industry: Bleach plants and chemical recovery areas.