QSI0.6-2
1 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 QSI0.6-2 →QSi0.6-2 · GB/T 5231-2012
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material category
- Copper and copper alloys
- Material form
- Reference record
- Original record status
- Original standard verified
- Standard edition
- GB/T 5231-2012
- Table / clause
- Table 4, row 35, designation C64700
- PDF page references
- 11
- Unit
- Mass fraction (wt%)
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| Si | 0.4 ～ 0.8 |
| Fe | ≤ 0.1 (lower limit not stated) |
| Zn | ≤ 0.5 (lower limit not stated) |
| Pb | ≤ 0.09 (lower limit not stated) |
Applicability and limitations
Mass fraction wt%; GB/T 5231-2012, Table 4, row 35, designation C64700; Scanned PDF, page 11. Cu is the balance; A dash means unspecified; it is not entered as zero. Tabulated total impurities ≤1.2%, verified under the applicable table notes. This standard provides composition designations for wrought copper and copper alloys; actual supply and cold-heading suitability require separate confirmation. Table 4, note f: 1.6%–2.2% in the Ni column is combined Ni+Co, not an individual Ni range. Table 4, note a: As, Sb and Bi need not be analyzed, but the supplier must guarantee that the tabulated limits are not exceeded.
Combined limits
- Combined-element limits
- Requirement
- Table 4, note f: combined Ni+Co
- Element coefficient
- Ni
- 1
- Co
- 1
- Lower limit
- 1.6
- Upper limit
- 2.2
- Elements requiring measured values from the same heat
- Co
- Ni