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ASTM B165 Alloy 400 Nickel Alloy Pipe Alloy Seamless Pipe For Heat Exchanger

Very competitive price and the tubes are well polished, we are very satisfied with Spezilla from our cooperation since year 2010.

—— Nathalie Gulli - Mexico

Spezilla supports our group very well, and now we are approved supplier of goverment, they are reliable and flexible! Spezilla always answers!

—— Jaime Arias - Argentina

Good quality, fast delivery, Spezilla has been supplying heat exchanger tubes for our projects since 2008, we really appreciate your support!

—— Massimiliano Rossi - Italy

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ASTM B165 Alloy 400 Nickel Alloy Pipe Alloy Seamless Pipe For Heat Exchanger

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Large Image :  ASTM B165 Alloy 400 Nickel Alloy Pipe Alloy Seamless Pipe For Heat Exchanger

Product Details:
Place of Origin: CHINA
Brand Name: SPEZILLA
Certification: ISO9001, TS16949, PED, AD2000
Model Number: SMLS
Payment & Shipping Terms:
Minimum Order Quantity: 500KGS
Packaging Details: WOODEN BOXED
Delivery Time: Ex-Mill 15 - 30DAYS
Payment Terms: T/T, L/C
Supply Ability: 100TONS/MONTH
Detailed Product Description
Product Name: Nickel Alloy Seamless Tube Specification: ASMT B165
Test Certificate: EN10204 3.1, EN10204 3.2 Material Grade: UNS N04400
Size Range: 25.4 X 2.11MM Length: 20ft
Finishing Options: Annealed & Pickled Packaging: Wooden Boxed
Shape: Round
High Light:

nickel alloy tubing


polished nickel tubing

ASTM B165 Alloy 400 UNS N04400 WNR 2.436 Nickel Alloy Seamless Pipe for heat exchanger


Alloy 400 (UNS N04400) is a solid-solution alloy that can be hardened only by cold working. It has high strength and toughness over a wide temperature range and excellent resistance to many corrosive environments.

Alloy 400 is widely used in many fields, especially marine and chemical processing. Typical applications are valves and pumps; pump and propeller shafts; marine fixtures and fasteners; electrical and electronic components; springs; chemical processing equipment; gasoline and fresh water tanks; crude petroleum stills, process vessels and piping; boiler feedwater heaters and other eat exchangers; and deaerating heaters.

Thus precipitation-hardening treatments are not required. This combination of elements also is responsible for superior resistance to a wide range of corrosive environments of unusual severity as well as to high-temperature effects such as oxidation and carburization.


Item Code: Alloy400
Tube OD.: 25.40MM
Wall: 2.11MM
Length: 6000MM
Material: Alloy 400 UNS N04400
Standard: ASTM B165
Finish: AP / Annealed & Pickled
Type: Seamless Cold Drawn
Certification: ISO9001:2015
Mill Test Certificate: EN10204 3.1 / 3.2
Packing: Sleeved, Wooden Boxed



Temper Annealed
Tensile Rm 70 ksi (min)
Tensile Rm 480 MPa (min)
R.p. 0.2% Yield 28 ksi (min)
R.p. 0.2% Yield 195 MPa (min)
Elongation (2” or 4D gl) 40 % (min)

Physical Properties (Room Temperature)
Specific Heat (0-100°C) 427 J.kg-1.°K-1
Thermal Conductivity 21.8 W.m -1.°K-1
Thermal Expansion 13.9 μm/μm/°C
Modulus Elasticity 173 GPa
Electrical Resistivity 5.47 μohm/cm
Density 8.83 g/cm3

Chemical Composition (% by weight)
Element Min Max
C - 0.3
Si - 0.5
Mn - 2
S - 0.24
Cu Balance
Fe - 2.5
Ni 63 70


Available Tube Product Forms:



Seam welded and cold redrawn.

Seam welded, cold redrawn and annealed.
Quality Assurance:
Spezilla's welded precision stainless steel tubes are produced acc. to the following process and inspection to assure our quality:
1. Chemical Composition Analysis Test With 100% PMI.
2. Solution Annealing / Bright Annealed.
3. 100% Hydrostatic Test and 100% Eddy Current Test
4. Mechanical Tests includes Tension Test, Flattening Test, Flaring Test, Hardness Test.
5. Impact Test subject to Standard request.
6. Grain Size Test and Intergranular Corrosion Test.
7. Visual Test and Endoscope Test for Surface Quality Test

Typical Applications:

Pollution control

Mixed acid chemicals

Pulp and paper production

Waste treatment

Very high chloride environments

ASTM B165 Alloy 400 Nickel Alloy Pipe Alloy Seamless Pipe For Heat Exchanger 0


Contact Details
Spezilla Tube Co., Ltd. (Shanghai)

Contact Person: Will Ma

Tel: +86 13918539222

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