G51400
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 G51400 →G51400 · SAE J404-2000
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material category
- Alloy steel
- Subcategory
- Alloy steel
- Material form
- Reference record
- Original record status
- Original standard verified
- Standard edition
- SAE J404-2000
- Table / clause
- Table 1 and notes 1–3; scope
- PDF page references
- 1、2
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | 0.38 ～ 0.43 |
| Mn | 0.7 ～ 0.9 |
| Ni | ≤ 0.25 (lower limit not stated) |
| Cr | 0.7 ～ 0.9 |
| Mo | ≤ 0.06 (lower limit not stated) |
| Cu | ≤ 0.35 (lower limit not stated) |
| P | ≤ 0.03 (lower limit not stated) |
| S | ≤ 0.04 (lower limit not stated) |
| Si | 0.15 ～ 0.35 |
Applicability and limitations
Standard dated 2000-6, Table 1; ladle analysis, mass fraction wt%.; Product analysis deviations shall be verified separately according to SAE J409, and shall not directly expand the table values. Note 1: For elements neither specified nor required in the original table, residual upper limits apply: Cu/Ni/Cr/Mo respectively ≤0.35/0.25/0.20/0.06%; Explicit alloy ranges shall take priority. Pb 0.15–0.35% must be separately specified as L-grade; it is not automatically added to ordinary grades. Al, Ti, Nb, and V must be reported regardless of whether they are specified; Values below 0.008% may be reported as <0.008%; this is a reporting threshold, not a uniform composition upper limit. Grades with E prefix are electric furnace steels, with P/S upper limits of 0.025% respectively, separated from ordinary grades. Applicable to billets, slabs, plate, wire rod and hot-rolled/cold-worked bar products, among other forms.; Chemical composition itself does not guarantee suitability for cold heading.