BFE7-0.4-0.4
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 BFE7-0.4-0.4 →BFe7-0.4-0.4 · 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 5, row 8, designation T70510
- PDF page references
- 11
- Unit
- Mass fraction (wt%)
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| Fe | 0.1 ～ 0.7 |
| Mn | 0.1 ～ 0.7 |
| Pb | ≤ 0.01 (lower limit not stated) |
| P | ≤ 0.01 (lower limit not stated) |
| S | ≤ 0.01 (lower limit not stated) |
| C | ≤ 0.03 (lower limit not stated) |
| Si | ≤ 0.02 (lower limit not stated) |
| Zn | ≤ 0.05 (lower limit not stated) |
Applicability and limitations
Mass fraction wt%; GB/T 5231-2012, Table 5, row 8, designation T70510; scanned PDF, PDF physical page 11. Cu is balance. Ni+Co is a combined range and must not be split into individual Ni or Co limits. Dashes mean unspecified and are not replaced with zero. Total table-listed impurities ≤0.7%, subject to the applicable table notes. This standard provides the grade-composition basis for wrought copper-nickel alloys; actual supply and cold-heading suitability require separate confirmation.
Combined limits
- Combined-element limits
- Requirement
- Table 5: Ni+Co total
- Element coefficient
- Ni
- 1
- Co
- 1
- Lower limit
- 6.0
- Upper limit
- 7.0
- Elements requiring measured values from the same heat
- Ni
- Co