A useful copper or brass RFQ identifies the required product form, grade, dimensions, tolerances, condition, quantity, application, destination and packing. When these fields are clear, a supplier can review material availability, processing requirements, documents and quotation scope with fewer follow-up questions.
RFQ information checklist
| RFQ field | Information to provide | Why it matters |
|---|---|---|
| Product form | Strip, coil, sheet, plate, rod, bar, tube, connector or custom profile | Defines the relevant production, dimensions and packing method. |
| Grade / standard | GB, ASTM, JIS, EN, UNS or another stated reference | Identifies the requested alloy chemistry and material designation. |
| Dimensions | Thickness, width, diameter, wall thickness, length, coil ID / OD or section drawing | Allows size and processing requirements to be reviewed. |
| Tolerances | Permitted variation for critical dimensions, straightness or flatness | Distinguishes standard commercial requirements from precision parts. |
| Temper / condition | Soft, half-hard, hard, annealed or a target hardness range | Affects forming, machining, springback and final part performance. |
| Surface / edge | Finish, oxidation limits, edge condition, burr control, coating or plating needs | Supports stamping, welding, plating, appearance and assembly review. |
| Quantity | Total weight, pieces, coils or estimated recurring demand | Supports production, packing and quotation review. |
| Application | Electrical, stamping, machining, HVAC, heat exchange, hardware or another end use | Provides context for reviewing the requested specification. |
| Destination / trade term | Destination country or port and requested EXW, FOB, CIF or other scope | Clarifies which transport and commercial items belong in the quote. |
| Documents / packing | MTC or COA request, inspection items, pallet, wooden case, moisture protection and marks | Ensures documentation and export packing are discussed before order. |
1. Start with the product form
Use a specific product name rather than writing only "copper" or "brass." State whether the requirement is strip, coil, sheet, plate, rod, bar, tube, a flexible connector or a custom profile. Similar alloys may be supplied in different forms, and each form uses different dimension and packing information.
2. State the grade and standard
Provide the designation shown on the drawing, material list or previous certificate. Examples of standard systems include GB, ASTM, UNS, JIS and EN. Do not assume that two grades from different systems are automatically equivalent. Cross-standard references are useful for discussion, but the final designation, chemistry, condition and required properties should be confirmed before ordering.
If the exact grade is unknown, send the application, required conductivity or mechanical properties, working environment, processing method and any previous material information. A drawing or sample description can help the supplier review possible options, but it does not replace final material confirmation by the buyer.
3. Define dimensions and tolerances
For strip and coil, provide thickness, width, coil inner diameter, preferred outer diameter or coil weight, and any slit-edge requirement. For sheet and plate, provide thickness, width, length and flatness needs. For rod and bar, state diameter or section size and length. For tube, give outer diameter, wall thickness and length. Custom profiles require a dimensioned cross-section drawing.
Mark which dimensions are critical and state their permitted variation. A request such as "0.5 mm strip" is incomplete when the stamping process requires a specific thickness tolerance, width tolerance or edge condition.
4. Explain temper, surface and processing
Material condition affects bending, stamping, drawing, machining and springback. State a temper, hardness range or mechanical property requirement when it matters to the finished part. Surface and edge requirements should also be clear, especially when the material will be plated, welded, soldered, polished or used as an electrical contact.
Tell the supplier what happens after delivery. Stamping, bending, deep drawing, machining, brazing, welding, plating and heat exposure can lead to different material and inspection discussions.
5. Include quantity, destination and commercial scope
Provide the required weight, number of pieces or number of coils. If the demand is recurring, include an estimated order frequency separately from the first order quantity. State the destination country or port and the requested trade term so the quotation can distinguish material price, packing, inland transport and international freight.
6. Confirm documents and packing before order
If an MTC, COA, dimensional report, packing list, certificate of origin or another document is required, state it in the RFQ. Document availability and format should be confirmed for the specific product and order before purchase. Do the same for moisture protection, pallet or wooden case packing, coil orientation, maximum package weight and shipping marks.
RFQ example buyers can adapt
Product: Copper strip in coil
Grade / standard: C11000, ASTM reference
Size: 0.50 mm thickness x 100 mm width
Tolerance: State required thickness and width tolerances
Temper: State required condition or hardness
Quantity: 2 metric tons
Application: Stamped electrical component
Destination: Country and port
Documents / packing: MTC request, moisture protection and export pallet
Frequently asked questions
What information is needed for a copper or brass RFQ?
Provide product form, grade or standard, dimensions, tolerances, temper or hardness, surface and edge requirements, quantity, application, destination, packing and document requirements.
Can I request a quote without knowing the exact grade?
Send the application, drawing, required properties, previous specification or sample information for review. The final grade and suitability must be confirmed before ordering.
Why are quantity and destination required?
Quantity affects production and packing review. Destination and trade terms define shipping and quotation scope. Including both helps the supplier prepare a relevant response.
Prepare a copper or brass material RFQ
Send product form, grade, size, tolerance, quantity, application and destination. Add your drawing and packing or document requirements when available.
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