DN150 6-Inch Carbon Steel Forged Weld-Neck Flange Class 150 A105
For industrial sourcing
Prepare a clearer RFQ
Include the details below so RELIA can understand the part and discuss the next step with you.
- Drawing, sample, or reference standard
- Material grade and preferred process
- Dimensions, tolerances, and surface finish
- Application, target quantity, and destination
Production timing, packing, and shipping terms are confirmed for each project after specifications and trade terms are agreed.
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Surface TreatmentCNC MachinedApplicationConstruction
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Bolt Hole Diameter1/2"~24"Bolt Hole Quantity6
The DN150 6-inch carbon steel forged weld-neck flange Class 150 A105 enquiry starts at the pipe-to-neck transition. Match the pipe and flange on an accepted drawing before evaluating the bolted interface or installed operating conditions.
Match the pipe wall and weld-neck transition
Confirm nominal-size correspondence, pipe outside diameter, pipe wall, flange bore, neck geometry and weld-end preparation. DN150 and 6-inch naming describes nominal enquiry requirements rather than measured diameters. The shared 1/2"~24" range also cannot establish discrete available sizes.
Twelve actual variants offer Carbon Steel or Stainless Steel and six constructions. Select weld-neck supply explicitly. Blind, slip-on, socket-weld, lap-joint and threaded choices require their own acceptance criteria rather than inheriting the requested neck and weld-end arrangement.
Verify the full flange interface and class basis
Check outside diameter, thickness, facing geometry and roughness, bolt circle, hole quantity/diameter and tolerances together with the mating gasket and fasteners. The Bolt Hole Diameter range and quantity 6 do not define drilling across every size or construction.
Class 150 requires the agreed governing dimensional/rating standard, edition, scope and selected compliance evidence. It is not one constant operating pressure. The two viewed ring and short-hub flange references cannot certify the requested weld-neck geometry, nominal size or pressure class.
Accept A105 manufacture and complete joint duty
A105 requires the chosen carbon steel specification, product form, condition and heat-traceable material/inspection documents. It cannot certify stainless alternatives. Forged and CNC Machined wording needs production and dimensional records; appearance cannot establish either process acceptance or material condition.
For construction duty, identify actual medium composition, pressure, temperature, cycling and mechanical loads. Submit nominal-size mapping, the full neck/interface drawing, pipe wall and weld-end requirements, material/manufacturing evidence and mating assembly details. Assess the welded pipe and bolted joint together when accepting the operating envelope.
Technical information for every product inquiry
Prepare the requirement before final product confirmation.
The product page is a starting point. Drawings, samples, interfaces, materials, quantities and acceptance requirements are reviewed before stock matching or custom production is confirmed.
Discuss this product in your project context.
Share the available drawing, sample, reference, target quantity and application information. Unknown items can remain open for review.
