SUS303CU
2 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 SUS303CU →SUS303Cu · 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 | ≤ 0.15 (lower limit not stated) |
| Si | ≤ 1.0 (lower limit not stated) |
| Mn | ≤ 3.0 (lower limit not stated) |
| P | ≤ 0.2 (lower limit not stated) |
| S | ≥ 0.15 (upper limit not stated) |
| Ni | 8.0 ～ 10.0 |
| Cr | 17.0 ～ 19.0 |
| Cu | 1.5 ～ 3.5 |
Applicability and limitations
JIS G 4308:2013, Japanese original, Table 2, row 5, 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; Cu1.5~3.5SUS303Cu · 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 | ≤ 0.15 (lower limit not stated) |
| Si | ≤ 1.0 (lower limit not stated) |
| Mn | ≤ 3.0 (lower limit not stated) |
| P | ≤ 0.2 (lower limit not stated) |
| S | ≥ 0.15 (upper limit not stated) |
| Ni | 8.0 ～ 10.0 |
| Cr | 17.0 ～ 19.0 |
| Cu | 1.5 ～ 3.5 |
Applicability and limitations
JIS G 4308:1998: main-text Table 1 in the scanned Japanese original lists SUS303Cu; 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.