Excerpt:
Bright finished 304 round bar for machined components, shafts, pins and general equipment parts. Bright appearance can result from different finishing routes: specify cold drawing, turning or grinding, together with the tolerance and condition.
QIDA METAL · MATERIALS & EXPORT SUPPLY
304 Stainless Steel Bright Round Bar
Bright finished 304 round bar for machined components, shafts, pins and general equipment parts. Bright appearance can result from different finishing routes: specify cold drawing, turning or grinding, together with the tolerance and condition.
| Ordering item | Specification |
|---|---|
| Material / standard | ASTM A276/A276M bars; condition and finish to be agreed |
| Product family | Round Bars |
| 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
- Diameter tolerance and machining allowance can be checked before lengths are cut.
- Heat-linked identification can be retained through saw cutting and pack separation.
- Mixed diameter and cut-length schedules can be reviewed against piece count and packing limits.
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 |
|---|---|
| Diameter / mm | 6, 8, 10, 12, 16, 20, 25, 30, 40, 50, 60, 80, 100 |
| Length / mm | 3000, 6000 or ordered saw-cut lengths |
| Finish | Cold finished / turned / ground to agreement |
| Tolerance | Specify diameter, ovality, straightness, cut length and machining allowance |
| Condition | Annealed reference; cold-worked B/S conditions require different property requirements |
| Cutting | Saw-cut face, squareness and deburring to be specified; round blanks shown are form references |
| Diameter / mm | Theoretical kg/m | 100 mm nominal blank / kg |
|---|---|---|
| 6 | 0.22 | 0.022 |
| 8 | 0.40 | 0.040 |
| 10 | 0.62 | 0.062 |
| 12 | 0.89 | 0.089 |
| 16 | 1.59 | 0.159 |
| 20 | 2.48 | 0.248 |
| 25 | 3.88 | 0.388 |
| 30 | 5.58 | 0.558 |
| 40 | 9.93 | 0.993 |
| 50 | 15.51 | 1.551 |
| 60 | 22.34 | 2.234 |
| 80 | 39.71 | 3.971 |
| 100 | 62.05 | 6.205 |
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 | ≤0.08 |
| Mn | ≤2.00 |
| P | ≤0.045 |
| S | ≤0.030 |
| Si | ≤1.00 |
| Cr | 18.0–20.0 |
| Ni | 8.0–11.0 |
| Fe | Balance |
04 / Mechanical Properties & Technical Notes
| A276 Type 304 condition | Min tensile / MPa | Min proof / MPa | Min elongation / reduction of area |
|---|---|---|---|
| A, cold finished, d ≤12.7 mm | 620 | 310 | 30% / 40% |
| A, cold finished, d >12.7 mm | 515 | 205 | 30% / 40% |
| A, hot finished | 515 | 205 | 40% / 50% |
A bright surface is not proof of a cold-worked strength condition. Listed condition-A values distinguish small cold-finished bar from larger diameters. Theoretical masses use 7.90 g/cm³ and nominal solid dimensions; cutting loss and tolerances are excluded.
05 / Processing & Inspection
| Control point | What to agree or inspect |
|---|---|
| Material identity | Review heat-linked chemistry; specify PMI and additional analysis where needed. |
| Dimensions | Check diameter, ovality, straightness and final cut length. |
| Surface | Agree roughness, defect depth, grinding/turning condition and handling marks. |
| Machining preparation | Confirm saw-cut squareness, facing allowance, deburring and part-number marks. |
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 |
|---|---|
| Segregation | Separate grades, diameters and heats; identify every short-piece pack. |
| Surface protection | Use clean separators and guards suitable for bright surfaces. |
| Heavy pieces | Support billets on a suitable pallet/crate with restraints matched to mass. |
| Piece count | List diameter, length, count, net mass and heat/lot reference on the packing list. |
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.
