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ASTM B622 Hastelloy C276 / UNS N10276 Nickel Alloy Steel Seamless Tube Heat Exchanger Tube

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Ms. Vivi Zhao

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ASTM B622 Hastelloy C276 / UNS N10276 Nickel Alloy Steel Seamless Tube Heat Exchanger Tube

Brand Name:	Yuhong
Model Number:	ASTM B622 Hastelloy C276 Nickel Alloy Steel Seamless Tube
MOQ:	500kgs
Price:	Negotiable
Packaging Details:	Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Payment Terms:	TT, LC

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

China

Certification:

ABS, BV, DNV, CCS, LR

Product Name:

Heat Exchanger Tube

Standard:

ASTM B622 , ASME SB622

Material:

Hastelloy C276, UNS N10276, DIN 2.4819

Size:

OD : 6mm~ 50.8mm , WT: 0.5mm~ 15mm, L: Max:34m/pc

Ends:

PE , BE

Testing:

UT, ET, HT, PMI

Application:

Heat Exchanger, Cooling , Heating, Condenser, Tube Bundle

Highlight:

ASTM B622 Hastelloy C276 Seamless Tube, UNS N10276 Nickel Alloy Heat Exchanger Tube

Product Description

ASTM B622 Hastelloy C276 Tube UNS N10276 Nickel Alloy Steel Seamless Heat Exchanger Tube

A seamless tube manufactured to ASTM B622 specifications from Hastelloy C276 (UNS N10276), a highly corrosion-resistant nickel alloy—designed specifically for use in heat exchangers where extreme chemical and chloride environments would quickly destroy standard stainless steel or other less resistant materials.

Why C276 for Heat Exchangers?

This material is selected when standard stainless steels (304/316) or even higher grades like Alloy 625 or 825 fail. It offers:

Uniform Corrosion: Resistant to a wide range of aggressive chemicals, including sulfuric acid, hydrochloric acid, wet chlorine, formic and acetic acids.
Pitting & Crevice Corrosion: High Pitting Resistance Equivalent Number (PREN) ensures survival in chloride-laden environments (seawater cooling, brine, flue gas desulfurization).
Stress Corrosion Cracking (SCC): Highly resistant to chloride-induced SCC, which is a common failure mode in 300-series stainless steel heat exchangers.
Fabrication: It is readily cold worked (bent, U-bent, rolled) and welded.

Equivalent Grade of ASTM B622 Hastelloy C276 / UNS N10276 Nickel Alloy Steel Seamless Heat Exchanger Tube

STANDARD	UNS	WNR.	AFNOR	EN	JIS	OR	GOST
Hastelloy C276	N10276	2.4819	-	NiMo16Cr15W	NW 0276	ЭП760	ХН65МВУ

Chemical Composition % of ASTM B622 Hastelloy C276 / UNS N10276 Nickel Alloy Steel Seamless Heat Exchanger Tube

Hastelloy C276	Ni	C	Mo	Mn	Si	Fe	P	S	Co	Cr
Hastelloy C276	Balance	0.010 max	15.00 – 17.00	1.00 max	0.08 max	4.00 – 7.00	0.04 max	0.03 max	2.5 max	14.50 – 16.50

Mechanical Properties of ASTM B622 Hastelloy C276 / UNS N10276 Nickel Alloy Steel Seamless Heat Exchanger Tube

Density	Melting Point	Yield Strength (0.2%Offset)	Tensile Strength	Elongation
8.89 g/cm3	1370 °C (2500 °F)	Psi – 52,000 , MPa – 355	Psi – 1,15,000 , MPa – 790	40 %

Critical Testing (Beyond ASTM B622)

For heat exchanger service, buyers often add:

Positive Material Identification (PMI) – 100% of tubes to verify alloy composition.
Eddy current testing (ET) – Mandatory in many specifications (e.g., TEMA “R” class) to detect through‑wall defects.
Flattening & flange tests – To verify ductility for tube expansion.
Intergranular corrosion test (ASTM G28 Method A) – Confirms the low‑carbon stabilization is adequate, especially if the tubing will be exposed to sensitizing temperatures during welding.

Application:

Flue Gas Desulfurization (FGD): Reheaters and quench nozzles in coal-fired power plants.
Chemical Processing: Handling sulfuric acid, hydrochloric acid, and phosphoric acid.
Pharmaceutical: High-purity environments where contamination cannot be tolerated.
Offshore Oil & Gas: Seawater heat exchangers, particularly in topside facilities where chloride corrosion is extreme.
Waste Treatment: Evaporators and crystallizers.

ASTM B622 Hastelloy C276 / UNS N10276 Nickel Alloy Steel Seamless Tube Heat Exchanger Tube 0

Ratings & Review

Overall Rating

3.7

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

4 stars

67%

3 stars

33%

2 stars

1 stars

All Reviews

Rashid

United Arab Emirates Dec 10.2025

Helpful (2)

Good oxidation resistance, matches well with the T9. No scaling or thinning noticed.

Ivan Volkov

Russian Federation Nov 11.2025

Helpful (3)

As an engineer in Siberia, I tested these fin tubes in extreme cold (-30°C). The ASTM A213 T11 steel performed well with no thermal cracks, and cooling efficiency met expectations (88%). That said, the Russian-language documentation had translation errors in technical terms, causing minor confusion during installation.

Rajesh Kumar

India Apr 19.2025

Helpful (3)

Cost and reliability are key for Indian refineries. We installed these fin tubes in Mumbai’s cooling towers, achieving 16% energy savings versus local suppliers. ASTM A213 T11 compliance ensured no failures during monsoon humidity (90%+ RH), and the low price saved $8K upfront.

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Fired Heater Parts

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Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube

Copper Alloy Steel Heat Exchanger Tube

Titanium Alloy Steel Heat Exchanger Tube

Alloy Steel Heat Exchanger Tube

U Bend Heat Exchanger Tube

Carbon Steel Heat Exchanger Tubes

Boiler Tube

Nickel Alloy Steel Boiler Tube

Stainless Steel Boiler Tube

Duplex Stainless Steel Boiler Tube

Alloy Steel Boiler Tube

Carbon Steel Boiler Tube

Fired Heater Parts

Baffle Plate

Tubesheet

products details

Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube