Welded Pipe

Welded Pipe from Plate

Welded tubing from plate is tubing manufactured by rolling flat plate into a tubular shape and applying a longitudinal weld seam. Unlike standard mill tubing, plate-formed welded tubing allows outside diameter, wall thickness, and length to be defined prior to forming, making it suitable for custom, heavy-wall, and large-diameter applications.

Sandmeyer Steel Company produces welded tubing formed from plate for applications requiring dimensional control beyond standard mill tube offerings. Welded tubing is manufactured from plate sourced from Sandmeyer Steel’s on-site inventory and supplied for mechanical, structural, and process applications requiring custom dimensions and material control.

Welded pipe is produced with a single longitudinal weld seam and, where specified, supplied in long lengths without circumferential welds. Wall thickness is defined prior to forming based on plate thickness, and nominal pipe size is established during rolling.

Materials Offered

Welded pipe is produced from stainless steel and select nickel alloy plate sourced directly from Sandmeyer Steel’s on-site inventory. This plate-based approach supports material traceability and consistency throughout the manufacturing process.

Manufacturing Capabilities

Welded tubing is manufactured by rolling plate into tubular form and applying a longitudinal weld seam. Plate-based forming supports custom outside diameters, wall thicknesses, and length requirements beyond standard mill tubing.

Capabilities & Size Range

• Pipe sizes from 4″ NPS through 48″ NPS, schedule 5 through 160
• Wall thickness from 0.1875″ through 3″
• Rolled and welded cylinders up to 96″ diameter
• Single longitudinal weld seam; long lengths available without circumferential welds
• Where specified, walls from 0.1875″ through 2″ thick may be autogenously welded without filler metal to conform to ASME SA-312 requirements

What is welded tubing made from?

Welded tubing is made from flat stainless steel or nickel alloy plate that is rolled into tubular form and welded with a longitudinal seam. Starting from plate allows wall thickness and outside diameter to be controlled before forming.

How is welded tubing different from welded pipe?

Welded tubing is typically specified by outside diameter and wall thickness, while welded pipe is specified by nominal pipe size and schedule. Welded tubing is commonly used for structural and mechanical applications requiring custom dimensions rather than pressure-rated piping standards.

When is plate-formed welded tubing used instead of mill tubing?

Plate-formed welded tubing is used when standard mill tube sizes, wall thicknesses, or lengths are not available. It is often selected for heavy-wall, large-diameter, or custom-dimension applications.

Production Time

Immediate access to plate inventory allows welded tubing projects to move efficiently from material selection through production, supporting efficient timelines for both standard and custom requirements.

Contact Sandmeyer Steel Company for Welded Pipe

Contact Sandmeyer Steel today to discuss welded pipe requirements or request a quote.