H66
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 H66 →H66 · 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 3, row 7, designation C26800
- PDF page references
- 7、9
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| Cu | 64 ～ 68.5 |
| Fe | ≤ 0.05 (lower limit not stated) |
| Pb | ≤ 0.09 (lower limit not stated) |
Applicability and limitations
Mass fraction wt%; GB/T5231—2012, Table 3, row 7, designation C26800. Zn is balance. Total table-listed impurities ≤0.45%, covering all impurities outside the principal constituents. A partial sum of listed elements does not replace complete impurity analysis. Clause 2.2: single values for other impurity elements are maxima; unlisted limits require purchaser-supplier agreement and are not replaced with zero. This standard covers wrought copper/copper-alloy designations and chemical composition only; it does not establish actual cold-heading wire supply.
Combined limits
- Combined-element limits
- Elements requiring measured values from the same heat