Identify whether the part is standard-based or drawing-controlled
BLD Forge Direct
RFQ Checklist for Forged Parts
Use this broad RFQ checklist when the buying need is not limited to one flange standard. It helps purchasing, engineering and QA teams send enough information for forged flanges, rings, cylinders, tube sheets, valve forgings and custom forged parts before quotation review starts.
Summary
Use this broad RFQ checklist when the buying need is not limited to one flange standard. It helps purchasing, engineering and QA teams send enough information for forged flanges, rings, cylinders, tube sheets, valve forgings and custom forged parts before quotation review starts.
Separate finished dimensions from forging allowance and machining scope
State material grade, heat treatment condition and inspection documents early
Include quantity, destination, packing and required delivery window
Engineering Selection Notes
A useful forged-part RFQ starts by telling the supplier what controls the part: an international standard, a customer drawing, or a combination of both. Standard flanges can often be reviewed from ASME, EN, DIN or GOST wording, but rings, bowls, cylinders, tube sheets and valve forgings usually need drawings because the machining allowance, datum faces, NDT zones and final use case control the manufacturing route.
For forged components, quotation risk usually appears when the RFQ mixes finished dimensions with raw forging dimensions. If the buyer only sends a finished drawing, the supplier must know whether rough machining, final machining, heat treatment, UT, MT, PMI or third-party inspection is included. If the buyer sends a forging drawing, the supplier still needs the finished weight or machining route to judge stock allowance and process feasibility.
The strongest first message gives commercial and technical reviewers the same baseline: product family, drawing revision, material grade, quantity, inspection scope, certificate requirement, destination country and packing expectation. That does not replace engineering review, but it prevents a low first price from being based on missing inspection, wrong material condition or incomplete export documents.
RFQ Field Guide for Forged Parts
| RFQ field | What to send | Why it matters before quotation |
|---|---|---|
| Part identity | Product family, standard name or drawing number with revision | Separates standard flange review from drawing-controlled forging review. |
| Dimensions | DN/NPS/Class/PN for standard flanges, or finished drawing plus forging allowance for custom parts | Controls forging size, machining route, tolerances and material yield. |
| Material condition | Grade, normalizing or quench-and-temper condition, impact temperature if required | Changes raw material route, heat treatment time and certificate review. |
| Inspection scope | MTC 3.1, UT, MT, PT, PMI, dimensional report, hardness or third-party inspection | Inspection can change lead time, cost and whether a first offer is comparable. |
| Machining scope | As-forged, rough machined, final machined, sealing face, bore, drilling or datum faces | Prevents misunderstanding between forged blank supply and ready-to-install component supply. |
| Commercial logistics | Quantity, destination country, packing, marking and required delivery window | Allows realistic export packing, freight handover and production scheduling. |
Practical Checklist
Use this list before sending drawings or line items for quotation review.
Product family: forged flange, ring, cylinder, tube sheet, valve body, forged tee or drawing-controlled custom part
Standard or drawing: include ASME, EN, DIN, GOST or the latest customer drawing revision
Dimensions: list DN, NPS, Class or PN for standard parts; attach finished dimensions and forging allowance for custom parts
Material: specify ASTM, EN, DIN, GOST or project grade, plus required heat treatment condition
Machining scope: as-forged, rough machined, final machined, bore, sealing face, drilling, datum faces or tolerance notes
Inspection: MTC 3.1, UT, MT, PT, PMI, dimensional report, hardness, impact test or third-party inspection
Quantity and schedule: line-item quantity, batch split, required delivery date and whether partial shipment is acceptable
Export details: destination country, packing standard, marking language, document set and consignee requirements
Common RFQ Mistakes
These points often cause repeated clarification, price revisions or document mismatch.
- Sending only a product name such as forged ring or valve forging without drawing revision or finished dimensions
- Using flange terms such as Class, facing or bolt pattern for a custom forging that is actually controlled by a drawing
- Leaving machining scope unclear, so one supplier quotes a forged blank while another quotes a final-machined part
- Requesting UT, MT, PMI, MTC 3.1 or third-party inspection after price comparison instead of in the first RFQ
- Omitting destination, packing and marking requirements even though export preparation can affect cost and lead time
Send your RFQ or drawing directly to BLD Forge Direct.
Email quote@bldforgedirect.com with standard, drawing, material, quantity and inspection requirements.