Excerpt:
Drawing-based U channels formed or fabricated from low-carbon molybdenum-bearing stainless plate for equipment frames, process-area supports and architectural assemblies. This product is a fabricated section enquiry, so corner radius, weld details and finished dimensional tolerances are specified on the drawing rather than assumed from a hot-rolled channel series.
QIDA METAL · MATERIALS & EXPORT SUPPLY
316L Fabricated Stainless Steel U Channel
Drawing-based U channels formed or fabricated from low-carbon molybdenum-bearing stainless plate for equipment frames, process-area supports and architectural assemblies. This product is a fabricated section enquiry, so corner radius, weld details and finished dimensional tolerances are specified on the drawing rather than assumed from a hot-rolled channel series.
| Ordering item | Specification |
|---|---|
| Material / standard | ASTM A240/A240M 316L base plate / fabrication to drawing |
| Product family | Channels |
| Supply basis | Enquiry-based grade, dimensions, processing and quantity; availability, MOQ and delivery confirmed in the quotation. |
| Inspection documents | Request heat/batch records and EN 10204 3.1 or other documents where required; actual document scope must be confirmed. |
01 / Selection Advantages
- Custom web and flange dimensions can suit an existing assembly envelope.
- Base material, weld finish and appearance requirements can be reviewed in the same drawing package.
- Cut-piece marking and stainless-compatible packing help preserve finish and traceability.
02 / Specifications & Size Schedule
Use the following options to prepare a complete enquiry. The lists do not imply that every dimension combination is stocked or interchangeable with another standard. State the required tolerances and quantity for each line.
| Parameter | Enquiry requirement |
|---|---|
| Requested web / mm | 50, 75, 100, 150, 200, 250, 300 |
| Requested flange / mm | 25, 40, 50, 60, 75, 100 |
| Base thickness / mm | 3, 4, 5, 6, 8, 10, 12; combinations and forming radius by review |
| Route | Press-braked or plate-fabricated/welded; specify which is acceptable |
| Length / mm | 1000, 2000, 3000, 6000 enquiry lengths |
| Finish | Pickled, local weld treatment or agreed polish; specify visible faces |
| Web × flange × t / mm | Fabrication point to confirm |
|---|---|
| 50 × 25 × 3 | Inside radius and overall outside dimensions |
| 75 × 40 × 4 | Bending allowance and flange consistency |
| 100 × 50 × 5 | Corner/weld route and straightness |
| 150 × 60 × 6 | Fit-up and end squareness |
| 200 × 75 × 8 | Weld inspection and distortion allowance |
| 250 × 100 × 10 | Drawing approval and handling method |
03 / Chemical Composition
Composition is expressed in weight percent. Maximum and minimum limits refer to the listed grade/product reference; final acceptance follows the agreed standard edition and heat analysis.
| Element | Grade reference / wt.% |
|---|---|
| C | ≤0.030 |
| Mn | ≤2.00 |
| P | ≤0.045 |
| S | ≤0.030 |
| Si | ≤0.75 |
| Cr | 16.0–18.0 |
| Ni | 10.0–14.0 |
| Mo | 2.0–3.0 |
| N | ≤0.10 |
| Fe | Balance |
04 / Mechanical Properties & Technical Notes
| Base plate condition | Min tensile / MPa | Min proof / MPa | Elongation reference |
|---|---|---|---|
| Annealed 316L plate | 485 | 170 | 40%; finished fabrication requires separate acceptance |
The chemistry and mechanical values refer to the A240 base plate. They do not certify a weld procedure, completed assembly or structural load capacity. Specify filler material, welding qualification, weld inspection and post-weld cleaning where the project requires them.
05 / Processing & Inspection
| Control point | What to agree or inspect |
|---|---|
| Material records | Link base-plate heat identity to the fabricated piece and inspection documents. |
| Drawing checks | Confirm internal/external dimensions, corner radii, holes and tolerances. |
| Weld acceptance | Agree weld type, size, quality level, inspection and repair procedure. |
| Surface finishing | Review heat tint removal, cleanliness, contamination and appearance criteria. |
Include additional tests, third-party inspection, marking transfer and processing requirements before order confirmation. Qida can coordinate the agreed inspection scope and supporting records; an online product guide is not a delivered-batch test certificate.
06 / Export Packaging & Transport
| Packing item | Practical requirement |
|---|---|
| Face protection | Separate stainless surfaces from carbon-steel contact and dirty strapping. |
| Shape support | Support flanges and webs to avoid deformation during stacking. |
| Handling marks | Protect corners and polished faces with suitable guards. |
| Piece identification | Label drawing revision, piece number, heat reference and quantity. |
Agree destination port, Incoterms rule and named place, package mass, unloading equipment and required shipping documents. Container capacity depends on payload limits, route and load distribution. For regulated solid-wood packaging, confirm the applicable ISPM 15 treatment and marking requirements.
07 / Qida Procurement Support
| Order stage | Our coordination | Buyer benefit |
|---|---|---|
| Specification review | Review material, dimensions, units, drawings and destination requirements. | A clear line-by-line enquiry helps reduce omissions and incompatible substitutions. |
| Processing plan | Confirm cutting, finishing, inspection and identification items in writing. | The buyer can assess scope and acceptance before production or sourcing proceeds. |
| Packing & dispatch | Coordinate labels, packing list, suitable protection and shipping-document requirements. | Piece count and heat/lot correspondence can be checked at agreed milestones. |
| After-sales follow-up | Review order references, arrival photos and inspection records for reported issues. | A documented issue description supports a specific response and follow-up. |
08 / Request a Detailed Quotation
Send the standard and edition, grade, size schedule, quantity per size, material condition, finish, processing drawings, tests/documents, packing requirements and destination port. Include maximum piece or package weight and any project approval requirements. Pricing, minimum quantity and lead time will be confirmed against the actual requirement.
Shandong Qida Metal Technology Co., Ltd. · Liaocheng, Shandong, China
qidamt@163.com · +86 139 6951 8618
Technical References
The primary references below support material selection and enquiry preparation. They do not certify a delivery batch or imply an affiliation with their publishers. Product form, condition, standard edition and supplementary requirements must be agreed in the purchase specification.
