B16.5 Class 300 4-Inch Stainless Weld-Neck Flange Enquiry | 304/316/321/347
Pour l’approvisionnement industriel
Préparez une RFQ plus claire
Indiquez les éléments ci-dessous afin que RELIA comprenne la pièce et discute avec vous de la prochaine étape.
- Plan, échantillon ou norme de référence
- Nuance du matériau et procédé préféré
- Dimensions, tolérances et finition de surface
- Application, quantité cible et destination
Délais de production, emballage et conditions d’expédition sont confirmés pour chaque projet après accord sur les spécifications et conditions commerciales.
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warranty1 yearcustomized supportOEM, ODM, OBM
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TechnicForgedConnectivityWelding
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shapeEqualhead codeHexagon
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Surface TreatmentSmoothMounting hole diameter0.2 in
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Pipe Class300SizeCustomized Size
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Product nameElbow
This four-inch stainless weld-neck flange enquiry references B16.5, Class 300 and the grades 304, 316, 321 and 347. Actual Flange variants have broad material and millimetre size choices without subtype or exact-grade assignments. Confirm the selected form and nominal size before treating the title as a complete supplied specification.
Identify the neck and bore on the selected section drawing
The reviewed photos include hubbed and closed-centre examples, without mapping a weld-neck form to every variant. Request written variant identification and a section drawing showing the neck profile, bore, wall match and pipe-end preparation. If a closure is actually selected, obtain its separate joint requirements rather than assuming a weld-neck pipe connection. The body Elbow label does not establish an elbow option.
Confirm the four-inch offering and B16.5 dimensions
Ask how the four-inch nominal request relates to the millimetre menu; neither label alone gives the actual bore or supplied range. Establish the applicable B16.5 edition and dimensional inspection evidence. Record outside diameter, thickness, neck dimensions, bore and wall, bolt circle, hole details and exact facing. Check these with the mating pipe, flange, gasket and bolting. Equal, Hexagon, mounting-hole and Customized Size fields do not complete that interface.
Select one grade before assessing Class 300 duty
Choose one exact stainless material with complete specifications and traceability. The four title grades are not automatically interchangeable or jointly qualified; Alloy and Carbon Steel alternatives require separate specifications. Verify Forged and the required face finish beyond Smooth. Class 300 needs its standard, unit and selected material/temperature basis rather than a fixed pressure assumption. Define actual welding preparation and inspection, then assess fluid, pressure, temperature, corrosion and mechanical loads across the pipe attachment and entire bolted joint.
Informations techniques pour chaque demande produit
Préparez le besoin avant la confirmation finale du produit.
La page produit est un point de départ. Plans, échantillons, interfaces, matières, quantités et réception sont examinés avant confirmation du stock ou de la fabrication.
Discutez de ce produit dans le contexte de votre projet.
Partagez plan, échantillon, référence, quantité et application. Les points inconnus peuvent rester ouverts.
