Seamless Incoloy 28 tube
Seamless Incoloy 28 tube is a seamless tube made of nickel-iron-chromium based super austenitic stainless steel. It is designed for extreme corrosive environments. Adding molybdenum(about 3.5%),copper(about 1%)and nitrogen makes it more acid-resistant and stress corrosion cracking-resistant. It also has excellent mechanical strength and high-temperature stability. The seamless structure of Seamless Incoloy 28 tube ensures higher pressure-bearing capacity and medium purity. It is suitable for harsh industrial scenarios.
Seamless Incoloy 28 tube is widely used in highly corrosive environments. These include oil and gas(sour oil wells, subsea pipelines), chemical(sulfuric/phosphoric acid equipment), flue gas desulfurization(FGD)and seawater desalination systems. Its strong acid resistance, chloride corrosion resistance and high-pressure performance make it a key material in tough industrial scenarios. It ensures long-term reliable operation.
Features of Seamless Incoloy 28 tube
Excellent corrosion resistance: Seamless Incoloy 28 tube performs well in strong corrosive media like sulfuric acid, phosphoric acid and chlorides. It is better than common stainless steel(such as 316L)in sulfur - containing oil and gas and acidic environments.
High - temperature adaptability: Seamless Incoloy 28 tube can keep its performance in a wide temperature range from - 200°C to 600°C. It has excellent oxidation resistance.
Strong mechanical properties: Seamless Incoloy 28 tube has high tensile strength(at least 650 MPa)and good ductility. It is suitable for high - pressure piping systems.
Seamless process advantages: Seamless Incoloy 28 tube has no weak points from welding. Its smooth inner wall reduces fluid resistance and prevents impurity buildup.

Applications of Seamless Incoloy 28 tube
In the oil and gas field: Seamless Incoloy 28 tube is often used in subsea oil pipelines, downhole tools and processing equipment of high - sulfur gas wells.
In the chemical processing industry: Seamless Incoloy 28 tube is used as heat exchangers, reactor vessel pipes and waste acid recycling systems in sulfuric/phosphoric acid production.
In environmental protection and energy: Seamless Incoloy 28 tube is often used to make corrosion - resistant parts of flue gas desulfurization(FGD)units and nuclear waste treatment equipment.
In the marine engineering field: Seamless Incoloy 28 tube is used in high - salinity environment pipes and valve components of seawater desalination systems.

|
Parameter |
Typical Range/Options |
Applicable Standards |
|
Outside Diameter (OD) |
6 mm ~ 250 mm (custom sizes available) |
ASTM B163 / ASTM B829 / EN 10305 |
|
Wall Thickness (WT) |
0.5 mm ~ 20 mm (varies with OD) |
ASTM B163 / ASTM B829 / DIN 17456 |
|
Length |
3 m ~ 12 m (custom up to 18 m) |
Customer requirement or industry standard |
|
Shape |
Round (standard), Square/Rectangle (custom) |
As per drawing/agreement |
|
Surface Finish |
Pickled & annealed, bright annealed, polished (Ra ≤ 0.8 μm) |
ASTM B829 / AMS 5558 |
|
Pressure Rating |
SCH 5S ~ SCH 80S (or ASME B36.19) |
ASME B36.19 / ANSI B36.10 |
|
Testing Standards |
Hydrostatic test, Eddy Current (ET), Ultrasonic Testing (UT) |
ASTM E213 / ISO 9303 |
FAQ
Are you a factory or manufacturer?
A: Yes, we are a factory but we generally use our trading company to handle the business abroad. It will be more convenient to receive the remittance and arrange the shipment.
What is the delivery method?
A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.
Why is your product so cost-effective?
A: We cut out the middlemen in the end-to-end manufacturing process and we obtain raw material directly from its source.
Do you do spot quality inspection or full inspection?
A: 100% full inspection for sure. All unqualified products are discarded.
How do you ensure your lead time?
A: From material preparation to machining and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.
What is the MOQ of Seamless Incoloy 28 tube ?
A: Depends on quantity, generally, no MOQ limit.
How to pay for it?
A: A bank transfer (T/T) will be acceptable.
What is the delivery time?
A: around 7-20 days which depends on the quantity and production.
What is kind of the package?
A: Generally, we use a carton case or plywood case with protective material inside to ensure the save of cargo
What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.
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