A good stainless fittings RFQ is the cheapest lead-time reduction in the trade: a complete one gets a firm quote in a single pass, and an incomplete one starts a round-trip cycle where every question costs days across time zones. The difference is not volume or negotiating skill — it is a checklist.
Key takeaways
- A quotable RFQ has eight line items per SKU: tube OD and wall, thread standard per end, material grade, quantity with breakdown, destination port and Incoterm, certificates required, pressure and temperature, and packing or labeling needs.
- One line per SKU, sized the way the factory thinks — tube OD × wall for compression fittings, not “thread size” — is what separates a same-day answer from a clarification email.
- Stating certificates (EN 10204 3.1 mill certs, third-party inspection) and target price up front costs nothing and removes the two most common re-quote cycles.
The RFQ checklist
| Line item | Why the factory needs it | What goes wrong when it’s missing |
|---|---|---|
| Tube OD and wall | Compression fittings are sized by tube OD (see the sizing logic in what is a compression fitting) | Wrong series quoted; quote unusable |
| Thread standard per end | NPT, G, R or metric are not interchangeable | Quote for the wrong end; rework order |
| Material grade | SS304 / SS316 / SS316L changes price and stock | Silent downgrade risk; re-quote |
| Quantity + breakdown | Factories price by quantity breaks and MOQ logic | No price breaks; MOQ surprise after deposit |
| Destination port + Incoterm | Drives freight, packing and documentation | Price without logistics is not a landed cost |
| Certificates required | EN 10204 3.1 mill certs, third-party inspection add steps | Delayed dispatch; certificate scramble |
| Pressure and temperature | Selects the class and the seat material | Under-specified valves fail early |
| Packing / labeling | Export cartons, labels, photos are scheduled, not assumed | Cartons repacked at cost after the fact |
| Target price (optional) | Anchors the negotiation honestly | Multiple rounds of counter-offers |
A thin RFQ vs a quoting RFQ
Thin: “Need 500 stainless fittings, 1/2 inch, best price.” That request cannot be quoted — half inch of what, threaded what, in which alloy, going where, with which papers. The reply is a list of questions, and each exchange costs a day.
Quoting: “SS316L double-ferrule male connectors, 12 mm tube OD × 1 mm wall × G1/2 male, 300 pcs; SS304 same body, 200 pcs. Working pressure 40 bar, ambient temp. Destination: Hamburg, FOB Ningbo preferred. EN 10204 3.1 certs required. Export cartons with item labels.” One pass: stocked status, price breaks, certificate cost and a realistic ship date. The deeper mechanics of why stocked SKUs quote faster are in how our factory ships faster — this post is the paperwork side of the same truth.
Formatting that speeds the answer
One line per SKU, columns in the factory’s language: item number, fitting type, tube OD × wall, thread per end, material, quantity, notes. Attach a drawing or photo for anything non-standard rather than describing it in prose. Mark which lines are stocked-standard and which are custom geometry, and split quantities per line so price breaks apply where they should. State the destination country even if freight is your forwarder’s problem — it changes packing, documentation and sometimes the material paperwork. And if your project has a target price, say so: an honest anchor ends negotiation in one round instead of three.
What each omission costs downstream
Missing thread spec costs a round trip and risks a wrong-end order. Missing certificates costs dispatch days — inspectors and mill certs are scheduled, not summoned; the certificate types and the exact RFQ wording are mapped in our EN 10204 3.1 certificate guide. Missing pressure and temperature costs the valves: a 1000 WOG body with the wrong seat arrives on time and fails early. Missing the Incoterm means the quote is not comparable with any other quote you receive. None of these are exotic; all of them are on the checklist.
Send the checklist as a table — our contact form takes the size list directly, and the delivery page covers how stocked and custom lines move differently. We reply with price, stock status and a real ship date per line. Request a factory quote.
FAQ
What is the minimum a factory needs to quote? Fitting type, tube OD or pipe size, thread standard per end, material grade, quantity and destination country. Those six produce a usable quote; the full checklist produces a comparable, schedule-ready one.
Should I send a drawing or a BOM table? A BOM table for standard items, a drawing for anything with altered geometry. Photos help identify existing fittings. Tables quote faster; drawings define what tables cannot.
Do I have to state certificates at inquiry? Yes — EN 10204 3.1 mill certificates and any third-party inspection add cost and scheduling steps. Named up front they are built into the quote; discovered at dispatch they delay it.
What does stating a target price do? It anchors the negotiation honestly. A factory that can meet it says so in one round; one that cannot explains why. Silent anchoring just stretches the same conversation across more emails.
Why did two factories quote such different prices for the same list? Usually scope, not margin: different alloys assumed, different certificate inclusions, different Incoterms, or one quoted stocked equivalents and the other custom geometry. A checklist-complete RFQ is the control that makes quotes comparable.
