SWCH30K
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 SWCH30K →SWCH30K · JIS G3507
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material form
- Wire rod
- Original record status
- Reference transcription of standard
- Standard edition
- JIS G 3507-2:2005 → JIS G 3507-1:2021
- Table / clause
- Table 2
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | 0.27 ～ 0.33 |
| Si | 0.1 ～ 0.35 |
| Mn | 0.6 ～ 0.9 |
| P | ≤ 0.03 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cr | ≤ 0.2 (lower limit not stated) |
| Ni | ≤ 0.2 (lower limit not stated) |
| Cu | ≤ 0.3 (lower limit not stated) |
Applicability and limitations
Wire-rod grade SWRCH30K; SWCH wire uses raw material complying with G3507-1, under G3507-2:2005 clause 3 note 1 and clause 4. This is not inferred from a similar grade. The website does not state the edition; the edition of this record’s source is shown, without establishing contractual applicability.
Verification notes
Source standard: JIS G 3507-2:2005 → JIS G 3507-1:2021 · Table 2View associated products →SWCH30K · JIS G 3507-2-2005
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Subcategory
- Carbon steel for cold heading
- Material form
- Carbon-steel wire for cold heading; D/DA processing conditions require separate verification
- Original record status
- Original standard verified
- Standard edition
- JIS G 3507-2:2005
- Table / clause
- Part 1, Table 2 and residual-element notes; Part 2, Table 1 designation / Part 1 material correspondence
- PDF page references
- 1、4
- Unit
- Mass fraction (%)
- Analysis type
- Heat analysis
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | 0.27 ～ 0.33 |
| Si | 0.1 ～ 0.35 |
| Mn | 0.6 ～ 0.9 |
| P | ≤ 0.03 (lower limit not stated) |
| S | ≤ 0.035 (lower limit not stated) |
| Cr | ≤ 0.2 (lower limit not stated) |
| Cu | ≤ 0.3 (lower limit not stated) |
| Ni | ≤ 0.2 (lower limit not stated) |
Applicability and limitations
JIS G 3507-2:2005, row 29 of the complete table; cast-analysis mass fraction %. SWRCH wire rod and SWCH wire are recorded separately. The chemistry of wire in Part 2 is based on the corresponding same-period raw wire rod in Part 1; D/DA wire mechanical properties cannot be inferred from it. Japanese original, Part 1, Table 2: Cr≤0.20%, residual Cu≤0.30%, Ni≤0.20%; dashes are not filled with zero. The Chinese translation incorrectly gives the carbon maximum for SWRCH15K as 0.15 and omits ≤ in the R-category sulphur column; the corresponding Japanese-original values 0.18 and ≤0.040 are retained here. Sources for the 2005 and 2021 editions are kept separate; identical grade names do not establish the contractual edition or supply by our company.