ASTM B163 N02201 Nickel Alloy Heat Exchanger Tube

Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of astm b163 n02201 nickel alloy heat exchanger tube in China. With abundant experience, we warmly welcome you to wholesale customized astm b163 n02201 nickel alloy heat exchanger tube from our factory. For price consultation, contact us.

 

What isASTM B163 N02201 Nickel Alloy Tube ?

ASTM B163 N02201 nickel alloy heat exchanger tubing consists of seamless, low-carbon Nickel 201 pipe designed specifically for high-temperature condenser and heat transfer applications. It features a minimum nickel content of 99.0% and an extremely low carbon content (maximum 0.02%) to prevent graphitization. Characterized by high-purity nickel properties, it offers excellent corrosion resistance and can operate safely at temperatures up to 1230°F.Unlike standard Nickel 200, this material is suitable for safe operation in the temperature range from above 600°F up to 1230°F.

 

ASTM B163 Nickel Alloy Tube Manufacturer in China

ASTM B163 N02201 heat exchanger tubes supplied by GNEE are manufactured by hot extrusion plus multi-pass cold drawing, with the deformation rate per pass strictly controlled between 15% and 25% to ensure the stability of the metallographic structure. Intermediate bright annealing is performed at 760–925 ℃ under argon gas protection to eliminate residual stress and prevent surface oxidation. The dimensional tolerances reach ±0.05 mm for outer diameter and ±5% for wall thickness, meeting the strict requirements of heat exchangers for dimensional accuracy. The outer diameter of ASTM B163 N02201 seamless heat exchanger tubes ranges from 6 mm to 76.2 mm, and the wall thickness ranges from 0.75 mm to 4.0 mm, which can meet the requirements of minimum wall thickness or average wall thickness. It also supports cut-to-length and customized U-bend tube processing according to engineering drawings. Surface treatment options include pickled surface and bright annealed surface.

Certification
When specified in the purchase order or contract, a report of the test results will be furnished.

 

Note:
All tubes shall be supplied as per applicable ASTM B163 /B163M Specification
Mill test certificates will be issued
We can provide EN 10204 3.1 Certification according to the needs of you

 

Equivalent Materials for ASTM B163 N02201 Heat Exchanger Tubes

ASTM/ASME	ISO	EN	DIN	JIS	GB
Nickel 201/UNS N02201	NW 2201 / Ni 99.2	2.4061 / LC-Ni 99	2.4061	NW 2201	NS4101

 

ASME SB163 N02201 Chemical Composition (%)

Ni	Cu	Fe	Mn	C	Si	S
≥99.0%	≤0.25%	≤0.40%	≤0.35%	≤0.02%	≤0.35%	≤0.01%

 

Mechanical Properties

	Tensile Strength	Yield Strength (0.2% offset)	Elongation in 2 in. or 50 mm	Rockwell Hardness
Annealed	345	83	40	/
Stress-relieved	414	207	15	B62max

 

ASTM B163 Condenser and Heat Exchanger Dimension Tolerance

Material	Nominal Outside Diameter, in.(mm)	Outside Diameter, in.(mm)		Wall Thickness,% Average Wall		Wall Thickness,% Minimum Wall		Length,in.(mm)
UNS N02200,UNS N02201,UNS N04400		Over	Under	Over	Under	Over	Under	Over	Under
	1/2 to 5/8 (12.7 to 15.9),excl	0.005(0.13)	0	12.5	12.5	25	0	1/8 (3.2)	0
	8/5 to 1-1/2 (15.9 to 38.1), incl	0.005(0.13)	0.005(0.13)	10	10	20	0
	Over 1-1/2 to 3 (38.1 to 76.2), incl	0.010(0.25)	0.010(0.25)	10	10	22	0	Under 30 ft (9.1m)↑

 

What is the hardness of ASTM B163 N02201 tubing?

According to ASTM B163, the hardness of N02201 in the annealed condition is typically Rockwell B 70 or lower. This makes it very easy to secure to heat exchanger tubesheets via tube expansion during installation.

 

What is the difference between Nickel 201 and Nickel 200?

Carbon content: Nickel 200 has a carbon content of ≤ 0.15%, whereas Nickel 201 has a carbon content of ≤ 0.02%.
Temperature limits: Nickel 200 undergoes intergranular embrittlement due to carbon precipitation at temperatures exceeding 315°C (600°F). In contrast, Nickel 201 is specifically designed for high-temperature environments above 315°C and can withstand operating conditions exceeding 600°C.
Hardness: Nickel 201 is slightly softer than Nickel 200.

 

N02201 Industrial Applications

Chemical Processing: Reactors, heat exchangers handling caustic soda, chlorine.
Electronics: Semiconductor furnace components, lead frames.
Aerospace: Hydraulic lines, fuel injection systems.
Food/Pharma: Distillation columns, ultra-pure fluid transfer.
Energy: Molten salt reactors, alkaline fuel cells.

 

If you need further assistance, please let me know:What dimensions or wall thicknesses you are looking forThe specific operating temperature or chemical environment of your systemI can help provide sizing guidelines or match alternative alloy standards if needed

Contact now

 

 

 

Quality Control

Before leaving the factory, every batch of products undergoes 100% eddy current testing (ECT), hydrostatic testing, PMI (Positive Material Identification), chemical composition analysis, tensile testing, flattening testing, flaring testing, hardness testing, dimensional inspection, and surface inspection to ensure full compliance with ASTM B163 standards and customer technical specifications.

 

High-quality transport packaging

The finished products are individually sealed in plastic bags and finally packed into fully enclosed, heavy-duty wooden crates. This ensures that, during transport and storage, the pipe surfaces do not come into contact with any harmful substances that could cause high-temperature embrittlement.

FAQ

Q: How do you guarantee that the carbon content is truly below 0.02%?
Incoming raw material inspection: Spectroscopic and chemical analyses are performed on every batch of steel ingots.
Finished product test report (MTC): A certificate compliant with EN 10204 3.1 is provided with the shipment, clearly recording the precise carbon content for that specific Heat No.

 

Q: Do pure nickel tubes offer higher heat exchange efficiency than stainless steel?
A: Yes. The thermal conductivity of pure nickel is approximately 67 W/(m·K), which is 4–5 times that of stainless steel (approx. 15 W/m·K). This means using N02201 can significantly improve heat exchange efficiency and even allow for a more compact overall heat exchanger design.

 

Q: Why are lead times for N02201 usually longer than for stainless steel?
A: Raw material scarcity: Pure nickel ingots are not typically kept in stock and must be smelted to order.
Processing difficulty: Pure nickel is highly ductile and "sticky," placing extreme demands on tooling and processing techniques during cold drawing, which results in slower production speeds.
Production scheduling: As a specialty alloy, it typically requires a lead time of 45–60 days.

 

Q: Do you accept Third-Party Inspections (TPI)?
A: Absolutely. We frequently accommodate on-site inspections by agencies such as SGS, TUV, BV, and Lloyd's, covering activities like witnessing sampling, tensile testing, dimensional checks, and packaging acceptance.

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