1. Delivery conditions and applicable requirements
Table D.1 – Combinations of heat-treatment condition at delivery, product form and applicable requirements
| Delivery condition | Symbol | Wire rod | Bar | Wire | Ferritic steels | Martensitic steels | Austenitic and austenitic-ferritic steels |
|---|---|---|---|---|---|---|---|
| Solution annealed or solution annealed and peeled | +AT or AT+PE | X | X | X | — | — | X |
| Solution annealed and cold drawn | +AT+C | — | X | X | — | — | X |
| Solution annealed, cold drawn and solution annealed again | +AT+C+AT | — | X | X | — | — | X |
| Solution annealed, cold drawn, solution annealed again and lightly cold drawn | +AT+C+AT+LC | — | X | X | — | — | X |
| Soft annealed or soft annealed and peeled | +A or +A+PE | X | X | X | X | X | — |
| Soft annealed and lightly cold drawn | +A+LC | — | X | X | X | X | — |
| Soft annealed, cold drawn and soft annealed again | +A+C+A | — | X | X | X | X | — |
| Soft annealed, cold drawn, soft annealed again and lightly cold drawn | +A+C+A+LC | — | X | X | X | X | — |
X = applicable; — = not applicable.
Other delivery conditions may be agreed at the time of enquiry and order.
Applicable requirements according to the basis of order
| Type of requirement | Requirement |
|---|---|
| Chemical composition | According to Table D.2. |
| Mechanical properties | Table D.1 refers to D.3, D.4 and D.6. D.5 contains requirements for ferritic steels but is omitted from this reference in the original table. Use the appropriate material group and table for assessment. |
Supplementary or special requirements under Annex E apply if agreed at the time of enquiry and order.
Source: ISO 4954:2018, Table D.1, page 51 (PDF page 57). This table gives the standard relationship between product form, delivery condition and requirements; actual supply must be confirmed separately.
2. Chemical composition
Table D.2 – Chemical composition of stainless steels (cast analysis)
These are the standard’s reference requirements for cast analysis of X6Cr17, not analysis results for a particular heat. The order standard and requirements for raw material and finished product must be confirmed separately.
ISO steel number: 4016-430-00-I.
| Element | Mass fraction, % |
|---|---|
| C | ≤0.08 |
| Si | ≤1.00 |
| Mn | ≤1.00 |
| P | ≤0.040 |
| S | ≤0.030 |
| Cr | 16.0–18.0 |
| Ni | — |
| Mo | — |
| N | — |
| Cu | — |
| Other elements | — |
Values are mass fractions in percent. Single values are maximum limits unless otherwise indicated. “—” means the table specifies no limit; it does not mean zero content.
Elements not listed must not be intentionally added without the purchaser’s agreement, except for finishing the heat. Precautions are required to prevent additions from scrap or other raw materials of elements that could impair mechanical properties or suitability.
Note e to carbon: For cold formability, a maximum carbon content of 0.04% is recommended. This may be agreed at the time of enquiry and order.
Source: ISO 4954:2018, Table D.2, page 53 (PDF page 59). The table and notes do not replace the complete standard.
3. Mechanical properties
Table D.5 – Mechanical properties of ferritic stainless steels in the specified delivery condition
| Steel name | ISO steel number | Diameter | Delivery condition | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| +A or +A+PE | +A+LC | +A+C+A | +A+C+A+LC | ||||||||
| over, mm | up to and including, mm | Rm max., MPa | Z min., % | Rm max., MPa | Z min., % | Rm max., MPa | Z min., % | Rm max., MPa | Z min., % | ||
| X6Cr17 | 4016-430-00-I | 0.8 | 2 | — | — | — | — | — | — | 700 | 61 |
| X6Cr17 | 4016-430-00-I | 2 | 5 | — | — | — | — | 560 | 63 | 620 | 61 |
| X6Cr17 | 4016-430-00-I | 5 | 10 | 560 | 63 | 660 | 60 | 560 | 63 | 600 | 61 |
| X6Cr17 | 4016-430-00-I | 10 | 25 | 560 | 63 | 640 | 60 | 560 | 63 | 600 | 61 |
Source: ISO 4954:2018, Table D.5, page 57. Rm is tensile strength; Z is reduction of area at fracture. The values apply to the specified diameter intervals and delivery conditions. A dash does not mean zero or confirm availability.