B16.5 product scope
Common B16.5 requests include plate / ring flanges, weld neck flanges, slip-on flanges, blind flanges, threaded flanges, socket weld flanges and lap joint flanges.
American standard flange range
ANSI / ASME B16.5 flanges for European buyers.
European customers often buy ASME B16.5 flanges together with EN 1092-1, DIN, BS 4504 and UNI items for industrial projects, replacement orders and distributor stock requirements. Hyupshin supports B16.5 RFQs by flange type, class rating, facing, material grade and certificate requirement.
EN 1092-1 focused
ASME B16.5 supported
PN-rated supply
Traceable documents
EN 1092-1Main product range
ANSI B16.5Class-rated American standard
PED / AD 2000 / UKCACertificate references
Importers & stockistsRepeat supply cooperation
European shipment markets
Flange supply support for European importers and distributors.
Hyupshin supports EN 1092-1, DIN, BS 4504, UNI and project-standard flange inquiries for buyers in United Kingdom, Germany, Hungary, Poland, Czech Republic, Croatia, Italy, Serbia, Slovakia, France, Norway, Portugal, Spain, Netherlands, Austria, Ireland, Albania, Bulgaria, Belgium, Greece.
RFQ preparation
Information that makes European standard flange quotation faster.
Standard
EN 1092-1, ANSI / ASME B16.5, DIN, BS 4504, UNI or project drawing.
Flange details
Type, DN size, PN rating, facing, bore and drawing notes.
Material
Carbon steel, low-temperature steel, stainless steel or project grade.
Documents
EN 10204 3.1, inspection, marking, packing and certificate needs.
Focused pages
Related European flange pages
ASME B16.5 Plate Flange
Plate / ring flange RF or FF inquiries for Class 150, 300 and 600 orders.
ASME B16.5 Weld Neck FlangeWNRF, WNFF and RTJ weld neck flange RFQs for pressure piping projects.
ASME B16.5 Slip On FlangeSORF and SOFF slip-on flange references for European buyers ordering American standard flanges.
ASME B16.5 Blind FlangeBlind / blank flange supply with RF, FF or RTJ facing requirements.
ASME B16.5 Class 150 / 300Common Class 150 and Class 300 quotation range.
ASME B16.5 MaterialsASTM A105, A350 LF2, A182 stainless steel and certificate notes.
ASME B16.5 Threaded FlangeNPT threaded / screwed flange page with focused RFQ notes.
ASME B16.5 Socket Weld FlangeSocket weld flange page for SWRF and SWRTJ order checks.
ASME B16.5 Lap Joint FlangeLap joint flange page for stub-end assembly inquiries.
ASME B16.5 Class 400 / 600Class 400 and Class 600 page for pressure-service RFQs.
ASME B16.5 Class 900Class 900 flange page for high-pressure project orders.
ASME B16.5 Class 1500 / 2500High-pressure Class 1500 and 2500 flange reference page.
Supply notes
ANSI / ASME B16.5 flanges for European buyers. for European buyers
Class rating confirmation
Class 150, 300, 400, 600, 900, 1500 and 2500 inquiries should confirm NPS size, facing, bore, schedule, material and whether RF, FF or RTJ facing is required.
Materials and documents
Typical materials include ASTM A105 / A105N, A350 LF2, A182 F304 / F304L / F316 / F316L and project-specified grades. EN 10204 3.1 documentation can be reviewed with the order scope.
Detailed tables by page
Because ASME B16.5 covers several flange types and pressure classes, detailed dimension tables are separated into the focused type and class pages below instead of being mixed into this overview page.
European buyer focus
Order details to confirm before production
ANSI / ASME B16.5 flange inquiries are reviewed by standard, pressure rating and project use.
State Class 150, 300, 400, 600, 900, 1500 or 2500 with facing and bore details.
Common RFQs include carbon steel, low-temperature steel and stainless steel grades. Attach the project grade when it differs from regular stock items.
Confirm RF, FF, RTJ, galvanized finish, black paint, anti-rust oil or project-specific surface protection before quotation.
Mention EN 10204 3.1, PED, AD 2000, UKCA, PMI, NDT or third-party inspection requirements in the RFQ.
For European shipment, state pallet, wooden case, label, marking and mixed-size packing requirements early.
Procurement guidance
ANSI / ASME B16.5 flanges for European buyers. quotation notes
ANSI / ASME B16.5 flanges for European buyers. buying notes
ANSI / ASME B16.5 flanges purchased by European customers should be checked by NPS size, Class rating, flange facing, pipe schedule and bore requirement. These orders often appear in oil, gas, chemical, energy and EPC projects where American standard flanges are purchased together with EN or DIN items.
For Class 150 and Class 300 inquiries, buyers usually focus on fast comparison and clear material options. For Class 600, 900, 1500 and 2500, the RFQ should be treated as a project review with closer attention to facing, wall thickness, pressure service, inspection and certificate wording.
Flange detail review
For this flange type, the safest quotation route is to send the standard, size range, pressure rating, material grade, facing, quantity and any drawing notes together in one RFQ. This gives the sales and technical team enough information to check the order before pricing.
For European buyers, the quotation is stronger when documentation requirements are stated at the beginning: EN 10204 3.1 certificate, PED or AD 2000 references, UKCA notes, third-party inspection, PMI, NDT, marking photos or packing photos. This avoids revising the price after the technical review.
How to prepare the RFQ
Hyupshin recommends sending the RFQ as a table when several sizes are involved. Separate each standard, type, pressure rating and material grade into its own line, then add quantity, destination port and required delivery time. This format is easier for European importers, distributors and project suppliers to compare and repeat in future orders.
If the order is urgent, mark which sizes are needed first and whether partial shipment is acceptable. For repeat distributors, previous purchase records or customer part numbers can be added to the message field so the specification can be matched more quickly.
Reference scope
Common order references
| Standard / Type | Product | Typical scope |
|---|---|---|
| ASME B16.5 | Plate / ring flange | RF / FF, common Class 150 / 300 / 600 inquiries |
| ASME B16.5 | Weld neck flange | WNRF / WNFF / RTJ for pressure piping projects |
| ASME B16.5 | Slip on flange | SORF / SOFF, common stockist demand |
| ASME B16.5 | Blind flange | RF / FF / RTJ blank flange requirements |
| ASME B16.5 | Threaded flange | NPT threaded flange inquiries |
| ASME B16.5 | Socket weld flange | SWRF / SWRTJ and step bore requirements |
| ASME B16.5 | Lap joint flange | LJ flange for stub-end assemblies |
| Class ratings | 150 / 300 / 400 / 600 / 900 / 1500 / 2500 | Confirm pressure class, facing and bore or schedule before quotation |
| Materials | ASTM A105 / A350 LF2 / A182 stainless | Material certificates and heat traceability by order requirement |
Send this product for quotation
Send Inquiry
ANSI / ASME B16.5 flanges for European buyers. RFQ support
Send the standard, DN size, PN rating, material grade, facing, quantity, certificate requirement and any project drawing. Hyupshin will check the specification before quotation.
Buyer questions
RFQ and order notes
Why add ASME B16.5 to a European flange site?
Many European distributors and project buyers purchase American standard flanges for oil, gas, water, power and export projects, often together with EN and DIN flanges.
What information is needed for an ASME B16.5 quote?
Please provide flange type, NPS size, class rating, material grade, facing, bore or schedule, quantity and certificate requirement.
RFQ preparation
Contact sales