Pipe fitting production process
Pipe Fittings Production Process
Pipe fitting production reference pages organized for process review.
Pipe fitting raw material / forming / tolerances
Check pipe fitting raw material specifications, forming photos and tolerance references for purchasing.
- Photos
- 2
- Data tables
- 1
- Main table
- 1
Factory visuals
Photos and technical visuals
Pipe fitting production, forming, tolerance and product images for technical review.
Data tables
Reference tables
Use these tables to check pipe fitting production control points and prepare RFQ details before ordering.
Technical table 1
| Step | Process | Main control points | RFQ / order notes |
|---|---|---|---|
| 01 | Raw material preparation | Material grade, heat number, outside diameter, wall thickness and traceability are checked before production. | Confirm material grade, standard and whether seamless or welded fittings are required. |
| 02 | Cutting and forming | Pipe sections or prepared blanks are cut, heated and formed according to fitting type and drawing requirements. | Specify elbow radius, reducer type, tee type, cap size or special drawing dimensions. |
| 03 | Heat treatment when required | Normalizing, solution treatment, tempering or other heat treatment is arranged according to material and project requirements. | State heat treatment or test record requirements in the purchase specification. |
| 04 | End preparation and machining | Bevels, end faces, dimensions, wall thickness and center-to-end measurements are checked before final inspection. | Confirm bevel type, end preparation, schedule / wall thickness and tolerance requirements. |
| 05 | Inspection and marking | Visual condition, dimensions, marking, material certificate and additional inspection items are reviewed before packing. | Request EN 10204 3.1 certificate, PMI, NDT or third-party inspection when needed. |
| 06 | Surface protection and packing | Finished fittings are protected with anti-rust oil, coating or specified treatment and packed for sea shipment. | Confirm packing method, destination port, marking labels and shipping documents. |
ASME B16.9, EN 10253, JIS, DIN, GOST or customer drawing. Size and wall thickness NPS / DN, schedule, wall thickness and any special tolerance requirement
| RFQ item | Information to provide | Examples |
|---|---|---|
| Fitting type | Elbow, tee, reducer, cap, bend, cross or drawing-based fitting. | 90° LR elbow, concentric reducer, equal tee, pipe cap. |
| Standard / drawing | Applicable standard, project specification or attached drawing. | ASME B16.9, EN 10253, JIS, DIN, GOST or customer drawing. |
| Size and wall thickness | NPS / DN, schedule, wall thickness and any special tolerance requirement. | NPS 4 SCH 40, DN100, 6 mm wall thickness. |
| Material grade | Carbon steel, low-temperature steel, stainless steel or project material grade. | ASTM A234 WPB, A420 WPL6, stainless steel grades, S235 / P235 series. |
| End preparation | Bevel end, plain end or special end preparation. | Bevel ends for welding, plain ends for project-specific use. |
| Quantity and documents | Required quantity, certificate, inspection and packing requirements. | EN 10204 3.1 certificate, PMI, NDT, third-party inspection, export packing. |
| Delivery information | Destination port / country, Incoterms and required delivery time. | FOB Qingdao, CIF Rotterdam, CFR Jebel Ali, DAP project site. |
Inquiry support
Send technical requirements with your inquiry
For material, inspection, marking, packing or production questions, include standard, size, pressure rating, material grade, quantity and required certificates.