Short answer: a useful precision steel strip RFQ should include the grade, thickness, width, tolerance, delivery condition, edge, surface, quantity, end use and destination. These details allow a supplier to review whether the complete specification—not just one dimension—is feasible.
Steel Strip RFQ Checklist
| Information | What to provide | Why it matters |
|---|---|---|
| Grade and standard | For example, SK5 to an identified JIS specification | Similar trade names may not have identical requirements across standards or editions. |
| Thickness | Nominal thickness in mm | Thickness affects rolling route, condition and feasibility. |
| Width | Finished slit width or master-coil width | Width affects slitting, edge condition and coil format. |
| Tolerance | Permitted thickness and width variation | A tolerance must be agreed together with the measurement method. |
| Delivery condition | Annealed, cold rolled, hardened and tempered, or another agreed condition | The starting condition must suit the buyer’s forming and heat-treatment process. |
| Edge | Slit, deburred, rounded or another drawing requirement | Edge condition can affect forming, handling and the finished component. |
| Surface | Bright, polished, blue, oiled or an agreed reference sample | Surface expectations should be defined before production. |
| Coil requirements | Coil ID, maximum OD, maximum weight and winding preference | The coil must fit the buyer’s feeding and handling equipment. |
| Testing | Required inspection, report or acceptance criteria | Testing scope must be confirmed before quotation and production. |
| Quantity and destination | Trial and production quantity, city/country or port | These details affect packing, transport and the commercial quotation. |
Three Fields to Clarify Before Quotation
- State the governing standard and edition. A grade name by itself is incomplete.
- Define dimensions with measurement and tolerance. Thickness, width and condition must be reviewed as one combination.
- Describe the finished use and process. Stamping, bending, heat treatment and edge exposure change the suitable starting condition.
A Copy-and-Paste RFQ Template
Grade / standard: [grade and standard]
Thickness: [mm] Tolerance: [± mm or referenced standard]
Width: [mm] Width tolerance: [requirement]
Condition / hardness: [annealed or agreed H&T range]
Edge: [slit / deburred / rounded / drawing]
Surface: [requirement]
Coil ID / OD / weight: [requirement]
Application: [finished component and process]
Testing or documents: [requirement]
Quantity: [trial and production quantity]
Destination: [city, country or port]
Additional RFQ Information for Stamping and Fineblanking
Specify whether you are buying steel strip or requesting finished component manufacture. For steel strip, attach the material specification and identify which requirements apply to the delivered coil and which apply only after your forming or heat-treatment process. Hengtaifeng's quotation requires confirmation of the complete strip specification.
Process: [progressive stamping / fineblanking / bending / other]
Drawing and material specification revision: [reference]
Microstructure, if required: [criterion, method, sampling and limit]
Mechanical properties: [delivery-state targets, units and test methods]
Flatness / camber / coil set: [limits and measurement setup]
Slit edge and burr: [edge type, maximum burr and direction]
Surface and lubrication: [finish, defects, oil or residue constraints]
Feeder limits: [coil ID, OD, weight, winding and packaging]
Trial and release: [trial quantity, sample approval and release criteria]
Traceability and documents: [batch/heat link, report type and inspection scope]
Subsequent processing: [forming, heat treatment, grinding or coating]
Delivery request: [destination, requested date and delivery terms]
Strip Acceptance Is Not Finished-Part Approval
Receiving inspection verifies the agreed material characteristics. Part trials assess whether the strip, tooling and process work together for the specified component. Do not substitute a finished-part hardness or edge-quality requirement for a delivery-state strip requirement without engineering review.
What Happens if a Requirement Is Not Yet Known?
Mark it as open and provide the intended use. Ask the supplier to identify assumptions, exclusions and information needed before a firm quotation. Price, MOQ, stock, lead time, inspection documents and sample availability must be confirmed; they are not established by this checklist.
Review steel strip for automotive stamping and fineblanking review and supplier qualification requirements, then send an RFQ. Share only information you are authorized to disclose.
RFQ supplement updated: .
Why the End Use Should Be Included
The same nominal grade and dimensions may be used in different ways. A strip intended for stamping, bending, heat treatment, grinding or direct assembly can require a different starting condition, edge or surface. Describing the finished component helps the supplier identify questions that are missing from the RFQ; it does not replace the buyer’s drawing or acceptance specification.
Dimensions Must Be Reviewed as a Combination
Hengtaifeng’s overall product discussions may cover thicknesses from approximately 0.01 mm to 10 mm and widths up to approximately 1000 mm. This is not a promise that every grade, condition, width and tolerance combination is available. Feasibility depends on the complete material and order specification and must be confirmed before quotation.
Common RFQ Problems
- Providing only a grade and quantity, without dimensions or condition.
- Requesting a tight tolerance without stating how and where it will be measured.
- Using “hard” or “spring temper” without an agreed hardness or tensile-strength requirement.
- Omitting coil ID, maximum coil weight or equipment limitations.
- Assuming equivalent grade names are automatically interchangeable.
- Requesting certificates or special tests only after the commercial terms are agreed.
Frequently Asked Questions
What information is required for a precision steel strip quote?
Provide the grade or standard, thickness, width, dimensional tolerance, delivery condition, edge, surface, quantity, end use and delivery destination. A drawing or existing specification is also useful when available.
Can a supplier quote from dimensions alone?
Dimensions alone are usually insufficient because grade, condition, tolerance, edge and testing requirements can change manufacturing feasibility and price.
Should I specify annealed or hardened and tempered strip?
Choose the condition according to downstream processing. Parts that require substantial forming may need an annealed starting condition, while some applications can use strip supplied to an agreed hardened and tempered condition.
Measurement and Tolerance References
A tolerance value is meaningful only with an agreed nominal size, measurement method and governing specification. For context, Alleima's published strip tolerance guide demonstrates that tolerance classes vary with thickness and width; it is a producer reference, not a Hengtaifeng supply promise. If Rockwell hardness is specified, identify the scale and applicable method such as ISO 6508-1:2023.
Checklist reviewed 2026-08-14. Final feasibility and acceptance criteria are confirmed for each RFQ.
Related Material Pages
Review SK5 steel strip, 65Mn spring steel strip, 51CrV4 steel strip, GCr15 bearing steel strip, or the complete steel strip product range.