Welded Stainless Steel Pipe / Tubing

Product Introduction

Welded Stainless Steel Pipe / Tubing is manufactured by forming stainless steel strip or plate and joining the edges through a controlled welding process. Available in common grades such as 304, 304L, 316, 316L, 321, and 310S, with ERW and LSAW options selected according to pipe size and application. Welded pipes offer consistent dimensions, good corrosion resistance, and flexible production options for a wide range of industrial requirements. They are widely used in water treatment, chemical processing, construction, oil & gas, food processing, and industrial equipment. Customized diameters, wall thicknesses, lengths, surface finishes, and end treatments are available according to project requirements.

Specifications

Specification	Details
Product Type	Welded Stainless Steel Pipe / Tubing
Material Grade	SS304 / SS304L / SS316 / SS316L / SS321 / SS310S / etc.
Standard	ASTM / ASME / JIS / DIN / EN / Other applicable standards
Welding Process	ERW / LSAW
Outer Diameter	6 mm – 2000 mm / Customized
Wall Thickness	0.5 mm – 50 mm / Customized
Length	5.8 m / 6 m / 11.8 m / 12 m / Customized
Surface Finish	Pickled / Polished / Satin / Mirror / 8K
Polished Finish	180# / 240# / 320# / 400# / 600#
End Treatment	Plain Ends / Beveled Ends / Threaded
Weld Condition	As Welded / Processed according to requirements
Customization	Grade / Diameter / Wall Thickness / Length / Surface / End Treatment / Processing

Need a Customized Solution?

If you cannot find a welded stainless steel pipe / tubing for your project, please contact Queen Metal. We provide customized solutions based on your required grade, dimensions, standard, surface finish, end treatment, and application.

Send us your specifications, technical requirements, drawings, or parameter files, and our team will provide a suitable quotation and supply solution.

Email: ding@queenmetal.com

Applications & Industries

Industry	Typical Applications
Chemical & Petrochemical	Process piping, chemical equipment and fluid transportation
Oil & Gas	Industrial piping, transportation systems and structural applications
Water Treatment	Water supply, wastewater and treatment systems
Construction	Structural piping, architectural and building applications
Food & Beverage	Processing equipment and sanitary piping systems
Pharmaceutical	Process and sanitary equipment
Industrial Equipment	Machinery, equipment and fabrication
Infrastructure	Large-diameter piping and industrial infrastructure

Quality Assurance & Testing

Quality Control	Details
Material Verification	Stainless steel grade and chemical composition according to applicable standards
Dimensional Inspection	Outer Diameter / Wall Thickness / Length
Surface Inspection	Surface condition and finish
Weld Inspection	Weld appearance and condition
NDT Testing	Available according to product type and order requirements
Hydrostatic Testing	Available according to applicable standards
Mechanical Testing	Tensile Strength / Yield Strength / Elongation according to applicable standards
MTC	Material Test Certificate available according to order requirements
Third-Party Inspection	Available upon request

Packaging & Logistics

Item	Details
Packaging	Export-standard stainless steel pipe packaging
Protection	Plastic caps / Waterproof protection / Steel strapping
Bundle Packing	Bundled according to pipe size and transportation requirements
Wooden Cases	Available according to product type and shipping requirements
Loading	Container / Bulk shipment
MOQ	According to grade, size and order requirements
Lead Time	Confirmed according to product availability and order quantity

FAQS

1. What stainless steel grades are available for welded pipes?

Common grades include 304, 304L, 316, 316L, 321, and 310S. Other grades can be supplied according to applicable standards and project requirements.

2. What welding processes are available?

Queen Metal can supply welded stainless steel pipes using ERW (Electric Resistance Welding) and LSAW (Longitudinal Submerged Arc Welding) processes, depending on pipe dimensions, material, and application.

3. What is the difference between ERW and LSAW stainless steel pipe?

ERW pipes are typically produced by resistance welding formed steel strip, while LSAW pipes are formed from steel plate and welded along the longitudinal seam. The appropriate process depends on the required diameter, wall thickness, standard, and application.

4. What sizes of welded stainless steel pipe can you supply?

Outer diameters can range from 6 mm to 2000 mm, with wall thicknesses from 0.5 mm to 50 mm, subject to manufacturing process and product requirements. Customized dimensions are available.

5. Can welded stainless steel pipes be customized?

Yes. Queen Metal can provide customized grades, diameters, wall thicknesses, lengths, surface finishes, end treatments, and processing according to project requirements.