B8MA
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 B8MA →B8MA · ASTM A193/A193M-26
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results.
- Material category
- Stainless steel
- Material form
- Bolting material for high-temperature or high-pressure service
- Standard edition
- ASTM A193/A193M-26
- Table / clause
- Table 1 and applicable footnotes A, B, E, F, G
- PDF page references
- 3、5
- Unit
- Mass fraction (wt%)
- Analysis type
- Heat analysis
- UNS identifier in the original table
- S31600 (designation correspondence within the same source)
- Class identifier in the same original table row
- 1 / 1A / 1D / 2; Parallel identification in the same row; specific grade, Class and properties must be confirmed separately.
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | ≤ 0.08 (lower limit not stated) |
| Mn | ≤ 2.0 (lower limit not stated) |
| P | ≤ 0.045 (lower limit not stated) |
| S | ≤ 0.03 (lower limit not stated) |
| Si | ≤ 1.0 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 10.0 ～ 14.0 |
| Mo | 2.0 ～ 3.0 |
Applicable conditions and limitations
ASTM A193/A193M-26, Table 1: heat-analysis mass fractions in wt%; single values are maxima unless a range or minimum is stated. Ellipses indicate no requirement and are not entered as zero.
Intentional additions of Bi, Se, Te and Pb are prohibited; this does not mean that measured contents of these elements are zero.
Product-analysis tolerances in Table 1 are applied separately and are not added in advance to the heat-analysis ranges.
Only chemical composition has been checked in this record. Class, heat treatment, dimensions and inch-pound or metric properties require separate confirmation. This is not a guarantee of cold-heading suitability, finished-product properties or actual supply.
The same original table row lists UNS S31600. This designation correspondence is retained only for this source; it does not establish verification of other standards or editions.