MachineU > China Products > Minerals & Metallurgy > Non-ferrous Metal > Nickel
ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube Alloy 625 Seamless Tube
ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube Alloy 625 Seamless Tube
ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube Alloy 625 Seamless Tube
ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube Alloy 625 Seamless Tube
ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube Alloy 625 Seamless Tube
ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube Alloy 625 Seamless Tube
ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube Alloy 625 Seamless Tube
ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube Alloy 625 Seamless Tube
Specifications
Brand Name :
Yuhong
Model Number :
ASTM B444 UNS N06625 Nickel Alloy Seamless Tube
Certification :
ABS, BV, DNV, CCS, LR
Place of Origin :
China
MOQ :
500kgs
Price :
Negotiable
Payment Terms :
TT, LC
Packaging Details :
Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Product Name :
Heat Exchanger Tube
Standard :
ASTM B444, ASME SB444
Material :
UNS N06625, INCONEL 625, DIN 2.4856
OD :
1/4" , 3/8", 1/2", 5/8", 3/4", 1", 1.1/4", etc.
WT :
BWG 25, 22, 20, 18 ... 10
Length :
Fixed length, Random length
Application :
Heat Exchanger, Cooling , Heating, Condenser, Tube Bundle
High Light :
ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube, Alloy 625 Seamless Tube
Description

ASTM B444 UNS N06625 Grade 1 Nickel Alloy Steel Seamless Tube Alloy 625 Heat Exchanger Tube

ASTM B444 UNS N06625 (Alloy 625) Seamless Heat Exchanger Tube is a weld‑free, nickel‑chromium‑molybdenum‑columbium tube manufactured and tested to the ASTM B444 standard. It is specifically designed for heat exchanger service, offering outstanding corrosion resistance (especially in seawater/acids), high strength, and thermal stability. The term excludes “steel” – it is a nickel superalloy, not a steel product.

The key advantages of ASTM B444 UNS N06625 (Alloy 625) seamless heat exchanger tubes, explained simply:

  • Outstanding corrosion resistance – Handles seawater, acids, and chlorides without rusting or pitting.

  • High strength – Stronger than stainless steel, even at high temperatures (up to ~650°C / 1200°F).

  • No weld seams – Seamless construction means no weak points or weld-related corrosion.

  • Resists stress cracking – Won't crack from chloride stress corrosion (a common problem with 300-series stainless steel).

  • Easy to fabricate – Can be bent, rolled, expanded into tube sheets, and welded without special difficulty.

Equivalent Grade of ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube

Grade UNS No Old British Euronorm GOST Japanese JIS
BS En No AFNOR
Inconel 625 N06625 NA 21 NiCr22Mo9Nb 2.4856 NC22DNB4M ХН75МБТЮ NCF 625

Chemical Composition of ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube

Grade C Mn Si Fe S Cr2 Al-Ti Ni
625 min. – – – – – 20.0 – 58.0
max. 0.10 0.50 0.50 5.0 0.015 23.0 0.40 –


Mechanical Properties of ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
625 Psi – 1,35,000 , MPa -930 Psi – 75,000 , MPa – 517 42.5 – –

Application:

1. Offshore Oil & Gas Platforms

2. Chemical & Petrochemical Processing

3. Marine & Desalination

4. Power Generation

5. High-Temperature Heat Exchangers (Up to ~650°C / 1200°F)

6. Pollution Control & Scrubbers

7. Specialty & Corrosive Acid Production

ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube Alloy 625 Seamless Tube

Send your message to this supplier
Send Now

ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube Alloy 625 Seamless Tube

Ask Latest Price
Product Detail
Brand Name :
Yuhong
Model Number :
ASTM B444 UNS N06625 Nickel Alloy Seamless Tube
Certification :
ABS, BV, DNV, CCS, LR
Place of Origin :
China
MOQ :
500kgs
Price :
Negotiable
Contact Supplier
ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube Alloy 625 Seamless Tube
ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube Alloy 625 Seamless Tube
ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube Alloy 625 Seamless Tube
ASTM B444 UNS N06625 Nickel Alloy Steel Heat Exchanger Tube Alloy 625 Seamless Tube

YUHONG HOLDING GROUP CO., LTD

Verified Supplier
3 Years
ningbo
Since 1990
Business Type :
Manufacturer, Importer, Exporter, Trading Company, Seller, Other
Main Products :
Stainless Steel Heat Exchanger Tube, Studded Tube, Duplex Stainless Steel Heat Exchanger Tube
Total Annual :
50M-70M
Employee Number :
50~800
Certification Level :
Verified Supplier
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products Nickel Alloy Steel Heat Exchanger Tube
MachineU China Products Minerals & Metallurgy Non-ferrous Metal Nickel
Contact Supplier
Submit Requirement