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HASTELLOY C22 ELBOW 90 / 180 DEG BUTT-WELDED NICKEL ALLOY FITTING

What is Hastelloy C22?

Hastelloy C22 is a versatile austenitic nickel-chromium-molybdenum-tungsten alloy with enhanced resistance to pitting, crevice corrosion and stress corrosion cracking. The high chromium content provides good resistance to oxidizing media while the molybdenum and tungsten content give good resistance to reducing media. This nickel steel alloy also has excellent resistance to oxidizing aqueous media including wet chlorine and mixtures containing nitric acid or oxidizing acids with chlorine ions. Other corrosives Hastelloy C-22 has resistance to are oxidizing acid chlorides, wet chlorine, formic and acetic acids, ferric and cupric chlorides, sea water, brine and many mixed or contaminated chemical solutions, both organic and inorganic.

This nickel alloy also offers optimum resistance to environments where reducing and oxidizing conditions are encountered in process streams. This is beneficial in multi- purpose plants where such “upset” conditions occur frequently. This nickel alloy resists the formation of grain-boundary precipitates in the weld heat-affected zone, thus making it suitable for most chemical process applications in the as-welded condition. Hastelloy C22 can't be used in service temperatures above 1250° F due to the formation of detrimental phases which form above this temperature.

Characteristics of Hastelloy C22:

Resistant to pitting, crevice corrosion and stress corrosion cracking
Outstanding resistance to both reducing and oxidizing media
Excellent resistance to oxidizing aqueous media
Exceptional resistance to a wide variety of chemical process environments including strong oxidizers such as ferric acids, acetic anhydride, and seawater and brine solutions
Resists the formation of grain-boundary precipitates in the weld heat-affected zone
Excellent weldability

Chemical Composition

Grade	C	Mn	Si	S	Co	Ni	Cr	Fe	Mo	P
C22	0.010 max	0.50 max	0.08 max	0.02 max	2.50 max	50.015 min*	20.00 – 22.50	2.00 – 6.00	12.50 – 14.50	0.02 max

Mechanical Properties

Element	Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
Hastelloy C22	8.69 g/cm3	1399 °C (2550 °F)	Psi – 1,00,000 , MPa – 690	Psi – 45000 , MPa – 310	45 %

Equivalent Grade

STANDARD	WERKSTOFF NR.	UNS	JIS	GOST	EN	OR
Hastelloy C22	2.4602	N06022	NW 6022	–	NiCr21Mo14W	–

Surface Treatment Options

BPE Surface Finish Code	CSI Surface Finish Code	Product Contact Surface (Max Ra)*	Product Contact Surface Finish Treatment (ID)	Non-Product Contact Surface (Max Ra)	Non-Product Contact Surface Finish Treatment (OD)	Dimensions & Tolerances (BPE) or (CSI)
SF1	PL	20 µ-inch (0.51 µm)	Mechanical Polish/As Drawn	32 µ-inch (0.81 µm)	Mechanical Polish	BPE
SF5	PO	20 µ-inch (0.51 µm)	Electropolished	32 µ-inch (0.81 µm)	Mechanical Polish	BPE
SF6	P25	25 µ-inch (0.64 µm)	Electropolished	32 µ-inch (0.81 µm)	Mechanical Polish	BPE
N/A	PU	Mill Finish	Unpolished/Mill	Mill Finish	Unpolished/Mill	CSI

Applications:

Pharmaceutical industries use alloy C-22 fittings and tubing to avoid contamination caused by corrosion related failures
Cellophane manufacturing
Chlorination systems
Pesticide production
Incineration scrubber systems
Chemical process industry in equipment like flue gas scrubbers, chlorination systems, sulfur dioxide scrubbers, pulp and paper bleach plants, pickling systems, and nuclear fuel reprocessing
Waste water processing

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Categories	Steel Fitting
Brand Name:	YUHONG
Model Number:	ASTM B366 C22 ELBOW
Certification:	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin:	CHINA
MOQ:	1PC
Price:	Negotiable
Payment Terms:	T/T, L/C AT SIGHT
Supply Ability:	According to Client Requirements
Delivery Time:	Depends on quantity
Packaging Details:	According to Client Requirements / Ply-wooden Case / Iron Case etc.
Product Name:	Nickel Alloy 180° Elbow
Type:	Butt Weld
Schedule:	SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Size:	1/8"NB TO 48"NB IN
Applications:	Cellophane Manufacturing, Chlorination Systems, Pesticide Production, Incineration Scrubber Systems, Etc.
Packaging:	PLY-WOODEN CASE OR WOODEN PALLET