Product Description
Material Summary
lncoloy 825 is an austenitic nickel-iron-chromium-molybdenum-copper alloy containing high levels of chromium, nickel, copper, and molybdenum to provide high levels of corrosion resistance to both moderately oxidizing and moderately reducing environments. This balance of alloying elements grants this alloy exceptional resistance to both chloride stress corrosion cracking, as well as crevice corrosion and general corrosion. It is the high level of nickel in combination with the amount of molybdenum and copper in this nickel alloy produces substantially improved corrosion resistance in a corrosive environment such as reducing environments compared to stainless steel. The addition of titanium in this alloy also helps to stabilize the alloy against intergranular corrosion. Chloride stress corrosion cracking is a type of localized intergranular corrosion on materials that are put under tensile strength, in high temperatures and in an environment that includes oxygen and chloride ions such as seawater.
As an austenitic, nickel alloy, the material is ductile over a wide range of temperatures from cryogenic to well more than 1000 °F (538 °C). Fabricability is typical for a nickel alloy, with the material readily formable and weldable by a variety of techniques.
Chemical Composition
| Grade |
Ni |
Cr |
Fe |
Mn |
C |
Cu |
Si |
S |
Al |
Ti |
Mo |
| Alloy 825 |
38 - 46 |
19.5 - 23.5 |
≥22.00 |
≤1.0 |
≤0.05 |
1.50-3.00 |
≤0.5 |
≤0.03 |
≤0.2 |
0.06 -1.2 |
2.50 - 3.50 |
Mechanical Properties
| Grade |
Condition |
Tensile Strength
ksi(MPa) |
Yield Strength
ksi(MPa) |
Elongation(%) |
| N08825 |
Annealed |
≥85(586) |
≥35(241) |
≥30 |
| N08825 |
Hot finished annealed |
≥75(517) |
≥25(172) |
≥30 |
| N08825 |
Cold-worked
annealed |
≥85(586) |
≥35(241) |
≥30 |
| N08825 |
Hot-forming quality |
- |
- |
- |
Product application
APPLICATIONS
Alloy 825 is widely used in oil and gas applications. Other uses include chemical process equipment, exhaust systems, and power generation. CRA offers specialty alloy 825 seamless pipe & tube for use in multiple industries and applications, including:
- Corrosive well conditions containing the presence of CO2 , H2S, and chlorides, in temperatures up to 300°F, without the presence of sulfur
- Tubing, Casing, & Liners
- Base Pipe for Sand Screens
- Swell Packers
- Exhaust Systems
- Chemical Processing
- Power Generation
- Geothermal
- Carbon Capture & Sequestration (CCS)
Certifications
FAQ
Are you a factory or a trading company?
We are a company with two mill and one warehouse,produce Stainless Steel/(Super)Duplex Steel/ Nickel Alloy seamless tube&pipes.
But we also can provide welded stainless steel pipes and pipe fittings, coils, sheets, bar, plates etc. if you need. Because we know this market well
Do you have any certificate?
We have approvals of ISO9001:2015,ISO14001:2015,ISO45001:2018, BV Ocean& Offshore Ship Classification Societies, GOST, TUV, PED AD2000 etc.
And will get ABS/NORSOK/DNV/CU-TR(EAC) soon.
What is your delivery time?
It mainly depends on your demanded volume and material grade. The time of delivery is usually around0.5- 1 month(1*40HT as usual).
We can send it out in 5 days if it has stock.
What is your payment terms?
Our usual payment term is 30% deposit and the rest against B/L. L/C is also acceptable. And the shipping terms are EXW,FOB, CFR,CIF.Whichever you like.
How can you guarantee the quality of my goods?
All material are 100% PMI tested and measured before shipping. We also accept third part inspection andEN10204.3.1B Mill test certificate for all materials.
How do you make our business long-term and good relationship?
1.We keep good quality and competitive price to ensure our customers benefit.
2. We respect every customer and we sincerely do business with them, sustain our service level before and after every deal.
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