Nickel Alloy 825/ N08825 Heat Exchanger Tube For Chemical Equipment With BA/AP Surface
Grade: Alloy 825; Alloy 600; Alloy 601; Alloy 800; TP304 ; TP304H ; TP304L ; TP316 ; TP316L; S31803
Standard: ASTM B622; ASTM B516; ASTM B444; ASTM B829, etc
Size :Routine OD : 19.05mm,25.4mm,31.8mm,38.1mm
WT : 1.2-2.77mm
Length : According to customer needs up to 20m
Heat Exchange Tube Application :
a) Petroleum , chemical enterprise , super heater of boiler and heat exchanger
b) High temperature-resistant transmission fluid pipe in power station
c) Ship with pressure pipe
d) Exhaust purification device
e) Construction and ornament
f) solar industry , military , semiconductor etc
Heat Exchange Tube Production Process :
1 . We use Cold Drawn technology to produce U bend tube
2 . U bend tubes produce will accordance to customer's drawings
3 . To avoid oxidation , inert gas (Argon) is passed through tubes ID at the required flow rate
4 . The radius is checked for its OD and wall thinning with the recommended specification
5 . We'll choose three different position or as customer's require to make sure tubes quality . We'll do physical properties and micro-structure test
6 . Visual inspection for waviness and cracks is done with Dye Penetrant Test
7 . Each tube is then hydro tested at the recommended pressure to check for leakage
Nickel Alloy 825 Heat Exchange Tube Chemical composition:
% | Ni | Fe | Cr | C | Mn | Si | S | Mo | Cu | Ti | Al |
min | 38 | 22 | 19.5 | 2.5 | 1.5 | 0.6 | |||||
max | 46 | 23.5 | 0.05 | 1 | 0.5 | 0.03 | 3.5 | 3 | 1.2 | 0.2 |