ASTM B622 Hastelloy C22 Pipes

Hastelloy C22, also known as Alloy 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.

ASTM B622 Hastelloy C22 Seamless Pipes Specification	ASTM B622 / ASME SB622 / UNS N010276 / UNS NO6022
ASTM B622 Hastelloy C22 Seamless Pipes Grades	ASTELLOY C276 / HASTELLOY C22 / ALLOY C276 / ALLOY C22
ASTM B622 Hastelloy C22 Seamless Pipes Type	ot Rolled / Cold Drawn / Welded / ERW
ASTM B622 Hastelloy C22 Seamless Pipes Outer Diameter Size	Seamless - 1/4" NB to 6" NB (Nominal Bore Size) Welded / ERW- 1" NB to 16" NB (Nominal Bore Size)
ASTM B622 Hastelloy C22 Seamless Pipes Wall Thickness	Schedule 10 to Schedule 160
ASTM B622 Hastelloy C22 Seamless Pipes Length	5 to 7 Meters, 09 to 13 Meters, Single Random Length, Double Random Length And Customize Size.
ASTM B622 Hastelloy C22 Seamless Pipes Ends	Plain Ends / Beveled Ends
ASTM B622 Hastelloy C22 Seamless Pipes Delivery Conditions	As Rolled, Cold Drawn, Hot Finish, Stress Relieved, Annealed, Hardened, Tempered
ASTM B622 Hastelloy C22 Seamless Pipes Coating	Electropolish, Mechanical Polish, Satin Finish, Passivated
ASTM B622 Hastelloy C22 Seamless Pipes Other Testing	NACE MRO175, Hardness Test, Flare, Hydrostatic Test, Eddy Current test, Grain Size Test, Eddy Current, Annealed, Tempered, Stress Relieved etc.
ASTM B622 Hastelloy C22 Seamless Pipes Dimension	All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM And ASME
ASTM B622 Hastelloy C22 Seamless Pipes Value Added Services	Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment
ASTM B622 Hastelloy C22 Seamless Pipes Packaging	Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
ASTM B622 Hastelloy C22 Seamless Pipes Shipment & Transportation	By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes
ASTM B622 Hastelloy C22 Seamless Pipes Material Test Certificate	Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC

The following table shows the chemical composition of Hastelloy(r) C22(r).

Element	Content (%)
Chromium, Cr	20-22.5
Molybdenum, Mo	12.5-14.5
Tungsten, W	2.5-3.5
Cobalt, Co	2.5 min
Iron, Fe	2-6
Manganese. Mn	0.5 max
Vanadium, V	0.35 min
Silicon, Si	0.08 max
Phosphorus, P	0.02 max
Sulfur, S	0.02 max
Carbon, C	0.015 max
Nickel, Ni	Remainder

The physical properties of Hastelloy(r) C22(r) are outlined in the following table.

Properties	Metric	Imperial
Density	8.69 g/cm³	0.314 lb/in³
Melting point	1399°C	2550°F

The Mechanical Properties of Hastelloy(r) C22(r) are displayed in the following table.

Properties	Metric	Imperial
Elastic modulus	206 MPa	29878 psi

The thermal properties of Hastelloy(r)C22(r) are given in the following table.

Properties	Metric	Imperial
Thermal conductivity (at 100°C/212°F)	11.1 W/mK	6.4 BTU in/hr.ft².°F

The hastelloy alloy C276 / C22 Pipes and Tubes is used in the following applications:-

Chlorination systems
Flue gas scrubbers
Outlet ducting and stack liners for power plants, pulp and paper bleach plants, sulfur dioxide scrubbers, and weld overlay of less corrosion resistant metals
Acid production and pickling systems
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
Pollution control stack liners, ducts, dampers, scrubbers, stack-gas reheaters, fans and fan housings
Flue gas desulfurization systems
Chemical processing components like heat exchangers, reaction vessels, evaporators, and transfer piping
Sour gas wells
Pulp and paper production
Waste treatment
Pharmaceutical and food processing equipment