QML20CRMO
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 QML20CRMO →QML20CrMo · Q/320412 ZTG 5024-2023
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
- 2023 Edition; Published and implemented on 2023-06-25; First publication
- Document title
- Q-series hot-rolled wire rod for cold-heading steel
- Table / clause
- Table 1
- PDF page references
- 5
- Unit
- Mass fraction (wt%)
- Manufacturer
- Zenith Steel Group Co., Ltd.
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 | 0.18 ～ 0.23 |
| Si | 0.1 ～ 0.3 |
| Mn | 0.6 ～ 0.9 |
| P | ≤ 0.025 (lower limit not stated) |
| S | ≤ 0.025 (lower limit not stated) |
| Cr | 0.9 ～ 1.2 |
| Mo | 0.15 ～ 0.3 |
| Al | ≥ 0.02 (upper limit not stated) |
| Ni | ≤ 0.2 (lower limit not stated) |
| Cu | ≤ 0.2 (lower limit not stated) |
Applicability and limitations
Zhongtian Steel Q/320412 ZTG 5024-2023, Table 1, row 32 (PDF page 5), cast analysis wt%; hot-rolled wire rod, orders and supply by Creation Group require separate confirmation.
Composition conditions
- Table 1 cast analysis in mass percent wt%; table dashes are not zero.
- Clause 6.1.3: residual Cr, Ni and Cu each ≤0.20%, Mo≤0.10%; grade-specific table limits take precedence.
- The source specifies hot-rolled delivery of wire rod and calls only for reporting measured mechanical-property data; those properties are not delivery acceptance criteria.