Hollow Cylinder Forgings
Open-die forged hollow cylinders supplied as-forged, rough machined or finish machined to an approved drawing.
Hollow / cylinder forgings
Large & Custom Hollow / Cylinder Forgings
Heavy-wall forged cylinders, shells, sleeves and hollow sections for pressure equipment, energy, offshore and industrial machinery.
Hollow forging product types
Manufacturing routes
by hollow geometry.
Bore geometry, wall section, material, heat treatment, machining allowance and inspection level are reviewed as one manufacturing route. These are drawing-based manufacturing capabilities, not stocked catalogue products.
Forged Cylinders
Custom cylinders developed around finished OD, bore, length, material properties and service requirements.
Heavy-Wall Cylinders
Thick-section cylinders reviewed for forging soundness, heat-treatment response and through-wall inspection.
Forged Sleeves
Heavy sleeves for machinery, pressure equipment and wear or support applications.
Forged Shell Sections
Shell and vessel sections manufactured with project-specific machining stock and testing requirements.
Forged Pipe Sections
Seamless heavy-wall sections produced to drawing rather than standard commercial pipe dimensions.
Hydraulic Cylinder Barrels
Forged barrel blanks reviewed against bore machining, wall section, properties and dimensional requirements.
Custom Hollow Forgings
Drawing-specific hollow bodies and cylindrical components for heavy industrial equipment.
Manufacturing range
Drawing-specific
hollow forging review.
No unverified diameter, bore, length, wall thickness or weight limits are published. Engineering confirms feasibility from the drawing, material grade, section geometry, final properties, machining route and inspection requirements.
Specification basisProject
dependent
dependent
Send OD, ID or bore, overall length, wall thickness, material, quantity and required testing for technical review.
- Outside Diameter
- Project dependent — contact engineering
- Inside Diameter / Bore
- Project dependent — contact engineering
- Overall Length / Height
- Project dependent — contact engineering
- Wall Thickness
- Project dependent — contact engineering
- Unit Weight
- Project dependent — contact engineering
- Material
- Confirmed against geometry, section and property requirements
- Heat Treatment
- Specified per material and required mechanical properties
- Machining
- As-forged / rough machined / finish machined, subject to drawing review
- Inspection
- UT / MT / PT / PMI and dimensional inspection as specified
Materials
Representative hollow
forging material families.
Material availability depends on cylinder geometry, wall section, heat-treatment route, mechanical properties and sourcing. Final grade acceptance is confirmed during engineering review.
Carbon / Low-Temperature / High-Strength Carbon Steel
ASTM A105 · ASTM A350 LF2 · ASTM A694 F65
Alloy Steel
42CrMo4 / AISI 4140
Stainless Steel
ASTM A182 F304 / F316 / F316L
Duplex Stainless Steel
ASTM A182 F51 / 2205
High-Temperature Alloy Steel
ASTM A182 F91 / F92
Listing a representative grade does not imply availability for every hollow geometry or wall section.
Manufacturing process
Controlled hollow route
from billet to shipment.
The applicable piercing, forming, heat-treatment and inspection route is established from the approved drawing, material grade and project ITP.
Raw Material→Heating→Upsetting→Piercing→Hollow Forging→Heat Treatment→Machining→NDT→Final Inspection→Shipment
Manufacturing equipment
Forging power and
hollow-processing control.
Quality & inspection
Wall soundness, properties
and dimensional control.
Inspection procedures, coverage, acceptance criteria and reporting are agreed before production. Additional testing is performed where required by the purchase specification and ITP.
Applications
Hollow forgings by
equipment duty.
Application review connects pressure, loading, wall section and service conditions with material, heat treatment, machining, inspection and documentation.
Oil & Gas
Heavy-wall pressure components, equipment cylinders and forged pipe sections.
Power Generation
Generator, turbine and plant-equipment sleeves, shells and hollow bodies.
Petrochemical
Pressure-equipment shells, cylinders and process-equipment components.
Mining & Heavy Equipment
Hydraulic barrels, heavy sleeves and machinery cylinders.
Marine & Offshore
Equipment shells and structural hollow forgings with project-specific inspection.
Industrial Machinery
Custom cylinders, sleeves and bore-machined hollow components for OEM equipment.
Engineering RFQ
Send the hollow forging requirement
for technical review.
Provide the finished or rough-machined drawing, material specification, quantity, heat treatment, machining and inspection requirements.
Confidential drawing handling · NDA support available before submission.