Stainless Steel Seamless Pipe Specifications

Stainless Steel Seamless Pipe

Stainless steel seamless pipe is manufactured without a longitudinal welded seam and provides a continuous pipe structure throughout the product body.

Compared with welded stainless steel pipe, seamless pipe is commonly selected for applications involving pressure, elevated temperature, corrosive media or demanding industrial operating conditions.

It combines the corrosion resistance of stainless steel with the structural consistency of seamless pipe and is widely used in chemical processing, oil and gas, petrochemical equipment, heat exchangers, boilers, power generation, food processing, water treatment and industrial piping systems.

We supply seamless stainless steel pipes in different grades, standards, outside diameters, wall thicknesses, lengths and surface conditions according to customer specifications.

Common Grades

Available grades may include:

• 304

• 304L

• 316

• 316L

• 321

• 310S

• 904L

• Duplex stainless steel grades where available

Actual availability depends on pipe size, standard and order quantity.

Available Standards

Common standards may include:

• ASTM A312

• ASTM A269

• ASTM A213

• ASTM A789

• ASTM A790

• EN 10216-5

• Other international standards available upon request

Product Advantages

Seamless Structure

The pipe contains no longitudinal welded seam, providing a continuous structure and consistent pipe body performance.

Excellent Corrosion Resistance

Depending on the selected grade, stainless steel seamless pipe offers strong resistance to moisture, oxidation and many chemical environments.

Suitable for Pressure Applications

Seamless stainless steel pipes are commonly used in pressure piping, heat exchangers, boilers and industrial fluid systems.

High and Low Temperature Capability

Different stainless steel grades can be selected according to operating temperature and service environment.

Flexible Specifications

Outside diameter, wall thickness, length, steel grade, surface condition and pipe end can be customized according to project requirements.

International Standard Supply

Products can be supplied according to commonly used ASTM, EN and other international specifications.

Typical Applications

Stainless steel seamless pipes are widely used in:

• Chemical processing

• Petrochemical equipment

• Oil and gas

• Heat exchangers

• Boilers

• Pressure piping

• Power generation

• Food and beverage equipment

• Pharmaceutical equipment

• Water treatment

• Marine applications

• Industrial fluid systems

• Mechanical equipment

Surface Condition

Available surface conditions may include:

• Pickled

• Annealed

• Bright Annealed

• Polished

• Customized surface treatment

Actual surface finish options depend on grade, size and manufacturing requirements.

Pipe End Options

Available pipe ends may include:

• Plain End

• Beveled End

• Threaded End

• Customized End Processing

Processing Services

Additional processing services may include:

• Cutting to length

• Beveling

• Threading

• Polishing

• Marking

• Surface treatment

• Customized packing

Quality Inspection

Depending on the applicable standard and order requirements, inspection may include:

• Chemical composition analysis

• Mechanical property testing

• Tensile testing

• Dimensional inspection

• Outside diameter inspection

• Wall thickness inspection

• Surface inspection

• Hydrostatic testing

• Eddy current testing

• Ultrasonic testing

• Other non-destructive testing where required

Mill Test Certificates and additional inspection documents can be supplied according to the agreed specification.

Packing

Stainless steel seamless pipes can be packed according to product size, surface requirements and transportation conditions.

Common packing methods include:

• Bundles

• Plastic wrapping

• Protective end caps

• Wooden cases where required

• Export seaworthy packing

• Customized packing

Shipping

We support commonly used international trade terms, including:

• FOB

• CFR

• CIF

Shipping arrangements can be made according to quantity, dimensions and destination port.

How to Get an Accurate Quotation

For an accurate stainless steel seamless pipe quotation, please provide:

• Steel grade

• Standard

• Outside diameter

• Wall thickness

• Length

• Quantity

• Surface requirement

• Pipe end

• Destination port

Send us your required specifications and quantity to receive a detailed quotation.