TCR0.7
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 TCR0.7 →Material demand assessment
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TCr0.7 · 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 2, row 15, designation T18146
- PDF page references
- 6
- Unit
- Mass fraction (wt%)
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| Cr | 0.55 ～ 0.85 |
| Ni | ≤ 0.05 (lower limit not stated) |
| Fe | ≤ 0.1 (lower limit not stated) |
Applicability and limitations
Mass fraction wt%; GB/T 5231-2012, Table 2, row 15, designation T18146; scanned original PDF, PDF physical page 6 (printed page 4). Where Cu is marked as balance, no numerical range is invented; a dash means unspecified and is not replaced with zero. Clause 2.2: single impurity values in the table are maxima. Manufacturer supply and compliance with this standard's chemical composition require separate confirmation. Note a to Table 2 defines high-copper alloys as containing copper between 96.0% and 99.3%; this does not guarantee cold-heading wire supply. The total of table-listed impurities is ≤0.5%; this is not a maximum for each individual unlisted element.
Combined limits
- Combined-element limits
- Elements requiring measured values from the same heat