10B16
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 10B16 →10B16 · Q/BQB 517-2023
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material category
- Alloy steel
- Subcategory
- Cold-heading steel
- Material form
- Hot-rolled steel wire rod for cold heading
- Original record status
- Original standard verified
- Standard edition
- Q/BQB 517—2023
- Table / clause
- 6.1.1/Table 1, row 52, note a and b
- PDF page references
- 10
- Unit
- Mass fraction (wt%)
- Analysis type
- Heat analysis
Original composition-element notation and analysis basis
- Al
- Original element symbol
- Alₜ
- Symbol extracted from the original source
- Alt
- Original table column heading
- Al t
- Subscript in the original source
- t
- Subscript explanation
- Only original table subscripts shall be retained; do not expand these into total aluminum or acid-soluble aluminum; Al without specified form shall not be directly equated
- Standard edition
- Q/BQB 517—2023
- Table / clause
- 1
- Original table item number
- 52
- PDF page references
- 10
- Unit
- Mass fraction (wt%)
- Analysis type
- Heat analysis
- Original record status
- Original column symbol verified
- Original cell
- ≥0.020
When the original analysis designations differ, or a record leaves them unspecified, comparability or a match cannot be concluded directly. Subscripts not explained by the source are not expanded here.
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | 0.13 ～ 0.18 |
| Si | ≤ 0.1 (lower limit not stated) |
| Mn | 0.8 ～ 1.1 |
| P | ≤ 0.02 (lower limit not stated) |
| S | ≤ 0.02 (lower limit not stated) |
| Cr | ≤ 0.15 (lower limit not stated) |
| Mo | ≤ 0.04 (lower limit not stated) |
| B | 0.0005 ～ 0.003 |
| Alₜ | ≥ 0.02 (upper limit not stated) |
| Ti | 0.01 ～ 0.05 |
| Ni | ≤ 0.15 (lower limit not stated) |
| Cu | ≤ 0.2 (lower limit not stated) |
| Sn | ≤ 0.02 (lower limit not stated) |
| N | ≤ 0.008 (lower limit not stated) |
Applicability and limitations
Q/BQB 517—2023 Baosteel official website original text Table 1 Row 52; Heat-analysis mass fractions wt%. Note a below the table: residual Cr≤0.20, Ni≤0.20, Cu≤0.20, Mo≤0.06 wt%; When this row has other provisions, the requirements for the element in this row shall prevail. Elements not listed and special agreement requirements shall not be treated as zero or as default guarantees; Permissible deviations for product analysis shall otherwise be according to GB/T 222. Hot-rolled delivery of wire rod; Tighter P/S limits under Z1 and special surface or inclusion quality requirements must be confirmed against normative Annex A and the contractual ordering codes; do not infer fixed mechanical properties from the chemical-composition table. Table 1, Note b states guarantees concerning Cd/Hg/Pb/Cr6+ but provides no actual measured values.; Not a limit listed in the chemical composition table for this row.
Verification notes
All 104 rows of Table 1 and 34 rows of Table 2 in the original Q/BQB517:2023 from Baosteel’s official website were checked row by row; not mixed with older editions.View associated products →10B16 · BEXG 021-2020
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material category
- Cold-heading steel
- Subcategory
- Cold-heading steel
- Material form
- Wire rod
- Original record status
- Manufacturer source verified
- Document edition
- BEXG 021-2020, sixteenth revision stated on the cover; issued and effective on 2020-12-29; The latest original document available on this computer only
- Document title
- Technical delivery conditions for cold-heading steel wire rod for automotive parts
- Table / clause
- Table 1
- PDF page references
- 4
- Unit
- Mass fraction (wt%)
- Manufacturer
- Baoshan Iron & Steel Co., Ltd. (Baosteel)
Carbon-equivalent reference
Estimate from manufacturer-published ranges, not a standard guarantee or measured heat result; formula applicability requires review against the application and process.
Composition
| Element | Composition requirement |
|---|---|
| C | 0.13 ～ 0.18 |
| Si | ≤ 0.1 (lower limit not stated) |
| Mn | 0.8 ～ 1.1 |
| P | ≤ 0.02 (lower limit not stated) |
| S | ≤ 0.02 (lower limit not stated) |
| Cr | ≤ 0.15 (lower limit not stated) |
| B | 0.0005 ～ 0.003 |
| Ti | 0.01 ～ 0.05 |
| Al | ≥ 0.02 (upper limit not stated) |
| N | ≤ 0.008 (lower limit not stated) |
| Ni | ≤ 0.15 (lower limit not stated) |
| Cu | ≤ 0.2 (lower limit not stated) |
| Mo | ≤ 0.04 (lower limit not stated) |
| Sn | ≤ 0.02 (lower limit not stated) |
Applicability and limitations
Baosteel BEXG 021-2020, Table 1, row 7, PDF page 4; heat-analysis composition in wt%, hot-rolled wire rod. 2020 is the original edition available locally, with no claim that it is the company’s current latest edition. Special conditions and actual supply require separate confirmation.
Composition conditions
- Table 1 and its continuation give heat composition, in mass fractions wt%; The product is hot-rolled wire rod for automotive parts.
- Unless expressly stated otherwise, residual Cr≤0.20%, Ni≤0.20%, Cu≤0.20% and Mo≤0.06% apply; Specific requirements in the table and additional notes take precedence.
- A dash does not mean zero; Composition outside the table is not inferred from grade names or referenced standards.
- The source states guarantees of Cd≤0.0075% and Hg/Pb/Cr6+≤0.1%; no measured data are provided; Keep environmental-substance guarantees separate from alloying-element calculations.