Stainless Steel Welded Pipe Specifications

Stainless Steel Welded Pipe

Stainless steel welded pipe is produced by forming stainless steel strip or plate into a cylindrical shape and welding the longitudinal joint.

Compared with seamless stainless steel pipe, welded pipe offers efficient production, good dimensional consistency and competitive cost, making it suitable for large-volume industrial, structural, sanitary and architectural applications.

Stainless steel welded pipes combine the corrosion resistance of stainless steel with flexible manufacturing and a wide range of surface finishing options.

We supply welded 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:

• 201

• 202

• 304

• 304L

• 316

• 316L

• 321

• 310S

• Other stainless steel grades available upon request

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

Available Standards

Common standards may include:

• ASTM A312

• ASTM A269

• ASTM A554

• ASTM A249

• EN 10217-7

• Other international standards available upon request

Product Advantages

Excellent Corrosion Resistance

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

Competitive Cost

The welded manufacturing process provides efficient production and makes welded stainless steel pipe suitable for large-volume commercial and project orders.

Good Dimensional Accuracy

Welded stainless steel pipes can provide stable outside diameter, wall thickness and length tolerances for industrial and structural applications.

Multiple Surface Finishes

Different surface finishes are available for industrial, sanitary, decorative and architectural requirements.

Flexible Specifications

Outside diameter, wall thickness, length, steel grade, surface finish and pipe ends can be customized according to customer requirements.

Export-Oriented Supply

We support international orders with inspection documents, customized marking, export packing and shipping arrangements.

Typical Applications

Stainless steel welded pipes are widely used in:

• Chemical processing

• Food and beverage equipment

• Water treatment systems

• Industrial piping

• Construction

• Structural engineering

• Architectural applications

• Machinery

• Sanitary systems

• Pharmaceutical equipment

• Heat exchangers

• Marine applications

• Furniture and decorative applications

• General engineering

Surface Finish

Available surface finishes may include:

• Pickled

• Annealed

• Bright Annealed

• 2B

• No.4

• Hairline

• Polished

• Mirror

• Customized finish

Actual surface finish options depend on grade, size and application.

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

• Polishing

• Beveling

• Threading

• Drilling

• Marking

• Surface finishing

• Customized packing

Quality Inspection

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

• Chemical composition analysis

• Mechanical property testing

• Dimensional inspection

• Outside diameter inspection

• Wall thickness inspection

• Weld seam inspection

• Surface inspection

• Hydrostatic testing

• Eddy current testing

• Other non-destructive testing where required

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

Packing

Stainless steel welded pipes can be packed according to size, surface condition and transportation requirements.

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 product dimensions, quantity and destination port.

How to Get an Accurate Quotation

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

• Steel grade

• Standard

• Outside diameter

• Wall thickness

• Length

• Quantity

• Surface finish

• Pipe end requirement

• Destination port

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