ASTM A182 F316L Stainless Steel Forged Tubesheet with Precision Machined Tube Holes for Heat Exchangers

ASTM A182 F316L Stainless Steel Forged Tubesheet

Product Introduction

Forged F316L Tube Sheets for Pressure-Bearing Heat Transfer Equipment

ASTM A182 F316L Tubesheet is a forged stainless steel component used to secure heat exchanger tubes and separate or control process-side fluids within shell-and-tube equipment.

Manufactured from 316L austenitic stainless steel, the tubesheet combines corrosion resistance with good weldability and is suitable for equipment exposed to moisture, chlorides and a range of process fluids.

The tubesheet can be supplied with precision-machined tube holes, shell-side sealing surfaces, pass-partition grooves and bolt holes according to heat exchanger drawings. Tube hole diameter, pitch, layout and drilling tolerance can be controlled according to the required tube-to-tubesheet joining method.

Depending on the equipment design, tube holes can be prepared for roller expansion, seal welding, strength welding or expanded-and-welded tube joints.

Technical Specifications

Typical Dimensions

Product Features

• Precision Tube Hole Machining

Tube holes are CNC machined according to specified diameter, pitch, positional tolerance and tube-sheet layout.

• Multiple Tube Joint Configurations

The tube sheet can be prepared for mechanical expansion, seal welding, strength welding or combined expansion and welding.

• Corrosion-Resistant F316L Construction

F316L stainless steel provides molybdenum-containing austenitic metallurgy for improved resistance to localized corrosion compared with conventional 304L stainless steel.

• Customized Pass Partition

Pass-partition grooves and gasket seating areas can be machined according to the required fluid-flow arrangement.

• Traceable Forged Material

Heat number traceability, PMI and material certification can be provided for pressure equipment projects.

Typical Applications

• Shell & Tube Heat Exchangers

• Fixed Tubesheet Heat Exchangers

• Floating Head Heat Exchangers

• Process Coolers

• Condensers

• Reboilers

• Feedwater Heaters

• Chemical Process Equipment

• Pharmaceutical Process Equipment

• Desalination Equipment

Typical Tube-to-Tubesheet Joints

• Mechanical Expansion

Tube ends are expanded against the tube holes to create mechanical contact and sealing.

• Seal Welding

A weld is applied at the tube-to-tubesheet interface when additional leakage protection is required.

• Strength Welding

The tube is welded to the tubesheet to form a structural tube joint.

• Expansion + Seal Welding

Mechanical expansion is combined with seal welding for applications requiring both mechanical retention and enhanced sealing.

Equivalent Material Grades

Inspection & Documentation

• Positive Material Identification (PMI)

• Ultrasonic Testing (UT)

• Dimensional Inspection

• Tube Hole Diameter Inspection

• Tube Hole Position Inspection

• Flatness Inspection

• Hardness Testing

• Visual Inspection

• EN 10204 3.1 MTC

• EN 10204 3.2 Inspection

FAQ

• What is an F316L tubesheet used for?

It is primarily used in shell-and-tube heat exchangers, condensers, reboilers and other tubular process equipment.

• Can the tube hole pattern be customized?

Yes. Tube diameter, pitch, hole quantity, layout and pass partition can be manufactured according to equipment drawings.

• What tube joining methods are available?

Mechanical expansion, seal welding, strength welding and combined expansion-and-welding configurations can be prepared.

• Can F316L tubesheets be supplied with inspection documentation?

Yes. PMI, dimensional inspection, UT and EN 10204 3.1/3.2 documentation can be supplied according to project requirements.

① Fixed Tubesheet vs Floating Head Tubesheet

• Fixed Tubesheet Heat Exchanger

• Floating Head Heat Exchanger

• Tube Sheet Design

• Thermal Expansion Compensation

② Tube Hole Pattern

• Triangular Pitch

• Rotated Triangular Pitch

• Square Pitch

• Rotated Square Pitch

③ Tube-to-Tubesheet Joint

Tube Expansion / Tube Rolling / Seal Welding / Strength Welding / Tube Hole Grooves / Tube Joint Leakage