SUS309S
3 source records. Standards, editions and conditions are presented separately; matching grade names do not establish interchangeability.
Refer to each source for mass fractions and analysis type. Missing values are not treated as 0. Manufacturer typical values, standard guarantees and measured heat results must remain separate. Use the material selector for calculations and condition selection.
Open condition selection, comparison and carbon-equivalent tools for SUS309S →SUS309S · JIS G 4308-2013
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Subcategory
- Austenitic stainless steel
- Material form
- Hot-rolled stainless-steel wire rod
- Original record status
- Original standard verified
- Standard edition
- JIS G 4308:2013
- Table / clause
- Table 1 · Grade designations; Table 2 · Chemical composition / Footnotes
- PDF page references
- 4、5
- Unit
- Mass fraction (%)
- Analysis type
- Heat analysis
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.08 (lower limit not stated) |
| Si | ≤ 1.0 (lower limit not stated) |
| Mn | ≤ 2.0 (lower limit not stated) |
| P | ≤ 0.045 (lower limit not stated) |
| S | ≤ 0.03 (lower limit not stated) |
| Ni | 12.0 ～ 15.0 |
| Cr | 22.0 ～ 24.0 |
Applicability and limitations
JIS G 4308:2013, Japanese original, Table 2, row 12, cast-analysis mass fraction %. The standard covers stainless-steel hot-rolled wire rod. Product-analysis deviations must be checked under JIS G 0321 and purchaser requirements; deviations must not be added to the default cast-analysis range. Grade designation and chemistry do not establish cold-heading suitability or a supply commitment by our company; dimensions, delivery and process condition require separate verification.
Verification notes
The grades in original Table 1–6, the heat-analysis table and footnotes were visually checked row by row;SUS309S · JIS G 4308-1998
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Subcategory
- Austenitic stainless steel
- Material form
- Stainless-steel wire rod
- Original record status
- Original standard verified
- Standard edition
- JIS G 4308:1998
- Table / clause
- Main text: Table 1 / Table 2 · Footnotes
- PDF page references
- 1、2
- Unit
- Mass fraction (%)
- Analysis type
- Heat analysis
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.08 (lower limit not stated) |
| Si | ≤ 1.0 (lower limit not stated) |
| Mn | ≤ 2.0 (lower limit not stated) |
| P | ≤ 0.045 (lower limit not stated) |
| S | ≤ 0.03 (lower limit not stated) |
| Ni | 12.0 ～ 15.0 |
| Cr | 22.0 ～ 24.0 |
Applicability and limitations
JIS G 4308:1998: main-text Table 1 in the scanned Japanese original lists SUS309S; main-text Table 2 gives heat analysis, mass fraction %. This edition covers stainless steel wire. The reference suffix -WR does not create another default grade. Standard wire diameters are given in Table 6; product-analysis deviations under clause 4.2 require separate verification. Cold-heading suitability, stocked sizes and supply by our company are not automatically established.
Verification notes
Line-by-line visual check of Table 1 and Tables 2–5 in the 1998 scanned Japanese original; footnote conditions are kept separate from the default composition.SUS309S · JIS G 4305-2021
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material category
- Stainless steel
- Subcategory
- Austenitic stainless steel
- Material form
- Reference record
- Original record status
- Original standard verified
- Standard edition
- JIS G 4305-2021
- Table / clause
- Table 3 · Footnotes; 5.1/5.2
- PDF page references
- 7、8
- Unit
- Mass fraction (wt%)
- Analysis type
- Heat analysis, not product analysis
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.08 (lower limit not stated) |
| Si | ≤ 1 (lower limit not stated) |
| Mn | ≤ 2 (lower limit not stated) |
| P | ≤ 0.045 (lower limit not stated) |
| S | ≤ 0.03 (lower limit not stated) |
| Ni | 12 ～ 15 |
| Cr | 22 ～ 24 |
Applicability and limitations
JIS G 4305:2021, Table 3, heat analysis, mass fraction wt%; each actual edition is retained separately. Applicable to cold-rolled stainless steel plate, sheet and strip; this does not establish suitability for delivery as cold-heading wire or guarantee cold-heading performance. 5.2 product analysis permits variations under JIS G0321, Table 5; unlisted items require agreement between the parties. These variations are not added to the heat-analysis limits in this batch. A dash indicates that no general limit is specified; it is not treated as 0. Conventional welding carbon-equivalent formulas for low-alloy steels do not apply to this stainless steel category.