X7CRNIAL17-7
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X7CrNiAl17-7 · NF EN 10088-1-2005
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material category
- Stainless steel
- Subcategory
- Precipitation-hardening stainless steel
- Material form
- Reference record
- Original record status
- Composition basis in the adopted standard verified
- Standard edition
- EN 10088-1-2005
- Table / clause
- Table 3 and continuation, notes a–d; all 30 martensitic and precipitation-hardening corrosion-resistant steel grades
- PDF page references
- 1、3、9、10
Carbon-equivalent reference
Estimates are presented separately for each applicable composition condition. Match the actual ordering conditions; ranges must not be combined.
Table 3 default Ni 6.5–7.8%
Note d: the Ni maximum may be raised to 8.3% to improve cold-deformation performance; applicable conditions must be confirmed
Composition record (conditional branches apply; this is not an unconditional requirement)
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 7.8 |
| Al | 0.7 ～ 1.5 |
Applicability and limitations
NF EN 10088-1:2005 adopts EN 10088-1:2005 (EN 10088-1-2005); See the data basis for the actual composition source file and table number. EN10088-1:2005, Table 3 including its continuation, heat analysis wt%; official English SIST adoption preview PDF9/10. ; Note a: unlisted elements must not be intentionally added without purchaser consent, except additions needed to finish the heat; blanks are not filled with zero or a general residual maximum. ; Note b distinguishes sulfur conditions for long products, machining, welding and polishing only for grades marked b; it is not extended to all grades. ; Note c: a narrower C range may be agreed at enquiry and ordering; Without a contract, the original table range is not replaced. ; Note d: only for X7CrNiAl17-7 to improve cold-deformation performance, the Ni maximum is 8.3%; select separately from default 7.8. ; A designation-list standard does not independently establish cold-heading suitability, mechanical-property delivery requirements or product supply; Adopted editions such as NF/DIN are not automatically verified by this European main text.
Original condition-branch records
Table 3 default Ni 6.5–7.8%
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 7.8 |
| Al | 0.7 ～ 1.5 |
Note d: the Ni maximum may be raised to 8.3% to improve cold-deformation performance; applicable conditions must be confirmed
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 8.3 |
| Al | 0.7 ～ 1.5 |
A condition branch must be selected
YesVerification notes
The formal adoption relationship and corresponding EN composition original have been checked; the complete national adoption text has not been verified page by page.X7CrNiAl17-7 · EN 10088-1-2005
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material category
- Stainless steel
- Subcategory
- Precipitation-hardening stainless steel
- Material form
- Reference record
- Original record status
- Original standard verified
- Standard edition
- EN 10088-1-2005
- Table / clause
- Table 3 and continuation, notes a–d; all 30 martensitic and precipitation-hardening corrosion-resistant steel grades
- PDF page references
- 1、3、9、10
Carbon-equivalent reference
Estimates are presented separately for each applicable composition condition. Match the actual ordering conditions; ranges must not be combined.
Table 3 default Ni 6.5–7.8%
Note d: the Ni maximum may be raised to 8.3% to improve cold-deformation performance; applicable conditions must be confirmed
Composition record (conditional branches apply; this is not an unconditional requirement)
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 7.8 |
| Al | 0.7 ～ 1.5 |
Applicability and limitations
EN10088-1:2005, Table 3 including its continuation, heat analysis wt%; official English SIST adoption preview PDF9/10. ; Note a: unlisted elements must not be intentionally added without purchaser consent, except additions needed to finish the heat; blanks are not filled with zero or a general residual maximum. ; Note b distinguishes sulfur conditions for long products, machining, welding and polishing only for grades marked b; it is not extended to all grades. ; Note c: a narrower C range may be agreed at enquiry and ordering; Without a contract, the original table range is not replaced. ; Note d: only for X7CrNiAl17-7 to improve cold-deformation performance, the Ni maximum is 8.3%; select separately from default 7.8. ; A designation-list standard does not independently establish cold-heading suitability, mechanical-property delivery requirements or product supply; Adopted editions such as NF/DIN are not automatically verified by this European main text.
Original condition-branch records
Table 3 default Ni 6.5–7.8%
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 7.8 |
| Al | 0.7 ～ 1.5 |
Note d: the Ni maximum may be raised to 8.3% to improve cold-deformation performance; applicable conditions must be confirmed
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 8.3 |
| Al | 0.7 ～ 1.5 |
A condition branch must be selected
YesVerification notes
All 30 rows of Table 3 and footnotes visually checked.X7CrNiAl17-7 · DIN EN 10270-3-2012
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material category
- Stainless steel
- Subcategory
- Precipitation-hardening stainless steel
- Material form
- Reference record
- Original record status
- Composition basis in the adopted standard verified
- Standard edition
- EN 10270-3-2011
- Table / clause
- Table1, note a–e; 1.1–1.3; 4.4.1–4.4.2
- PDF page references
- 6、7、8
Carbon-equivalent reference
Estimates are presented separately for each applicable composition condition. Match the actual ordering conditions; ranges must not be combined.
Table 1 base range: Ni 6.50–7.80%
Note d, improved cold formability: the Ni maximum may be as high as 8.30%; applicable conditions must be confirmed
Composition record (conditional branches apply; this is not an unconditional requirement)
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 7.8 |
| Al | 0.7 ～ 1.5 |
Applicability and limitations
DIN EN10270-3:2012-01 adopts EN10270-3:2011; this record uses composition from the verified original text of that EN edition.. EN 10270-3:2011 Table 1 heat analysis, mass fraction wt%; The source is an official public SIST excerpt of 11 pages; all 6 rows of Table 1 and notes a–e are included in full.. The scope is stainless spring steel wire with a circular cross-section diameter ≤10mm, usually delivered in the cold-drawn condition.; Mechanical requirements must be agreed upon for 10–15mm and other steel types not listed separately in Table 1; cold-heading product applicability shall not be automatically confirmed based on this. Table 1 Note a allows other compositions to be agreed upon; the ranges listed in the table shall not be altered without such agreement.; Clause 4.4.2: Apply product-analysis tolerances separately under EN10088-3; for the same element in the same heat, deviations must not occur both above the upper limit and below the lower limit.. Note c allows the use of 1.4436 to improve corrosion resistance, subject to the provisions of this standard for 1.4401.; The chemical composition of 1.4436 is not listed separately in this table and shall not be duplicated as the same composition. Note d allows the Ni upper limit to be increased to 8.30% only when improving the cold forming performance of X7CrNiAl17-7, which is listed as a separate condition.; Unlisted elements are not entered as zero. Chemical clauses and footnotes have been verified; it is not declared that all mechanical properties, dimensional tolerances, tests, and annex contents have been verified..
Original condition-branch records
Table 1 base range: Ni 6.50–7.80%
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 7.8 |
| Al | 0.7 ～ 1.5 |
Note d, improved cold formability: the Ni maximum may be as high as 8.30%; applicable conditions must be confirmed
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 8.3 |
| Al | 0.7 ～ 1.5 |
A condition branch must be selected
YesVerification notes
The official adoption relationship for DIN and complete original EN2011 composition table have been checked; The complete DIN2012 main text has not been checked page by pageX7CrNiAl17-7 · DIN EN 10270-3-2001
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material form
- Reference record
- Original record status
- Original standard verified
- Standard edition
- DIN EN 10270-3-2001
- Table / clause
- Table 1 and notes a–d, 1.1/1.2 and 5.4
- PDF page references
- 1、5、7
Carbon-equivalent reference
Estimates are presented separately for each applicable composition condition. Match the actual ordering conditions; ranges must not be combined.
Table 1 default composition: Ni 6.50–7.80%
Table 1 Note d: when improving cold forming performance, the upper limit of Ni can be increased to 8.30%; Application conditions must be confirmed
Composition record (conditional branches apply; this is not an unconditional requirement)
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 7.8 |
| Al | 0.7 ～ 1.5 |
Applicability and limitations
Official English original text of DIN EN10270-3:2001-08; Table 1 heat analysis, mass fractions wt%. ; The scope is for commonly cold-drawn round cross-section stainless spring steel wire with a diameter ≤10mm; 10–15mm shall follow mechanical requirements agreed by both parties; this does not automatically confirm the supply of cold-heading products. ; Product analysis tolerances in Clause 5.4.2 shall be governed separately by EN10088-3 and shall not directly expand the default heat analysis composition. ; Table 1 Note a allows other compositions to be agreed upon by both parties; Do not enter an agreed composition where no contractual agreement exists.. ; Note c allows the use of 1.4436 as a substitute for 1.4401 to improve corrosion resistance, but since the independent chemical composition of 1.4436 is not listed in this table, it shall not be duplicated as the same composition based on this. ; The Ni increase condition in Table 1 Note d is selected separately; blank Mo/N etc. shall not be filled as zero.
Original condition-branch records
Table 1 default composition: Ni 6.50–7.80%
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 7.8 |
| Al | 0.7 ～ 1.5 |
Table 1 Note d: when improving cold forming performance, the upper limit of Ni can be increased to 8.30%; Application conditions must be confirmed
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 8.3 |
| Al | 0.7 ～ 1.5 |
A condition branch must be selected
YesVerification notes
All 3 rows and footnotes in original Table 1 were visually checkedWire-diameter and tensile-strength conditions in the cold-drawn state
DIN EN10270-3:2001-08 (adopting EN10270-3:2001) · Table 2 and Notes a–g, 5.5.1/5.5.2 and Table 3 · PDF pages 8, 9
| Applicable conditions (nominal diameter mm) | Tensile strength Rm（MPa） | Range within a production batch from the same heat ≤ (MPa) | Range within one packaging unit ≤ (MPa) |
|---|---|---|---|
| Cold-drawn condition · 0 < d ≤ 0.2 mm | 1975 ～ 2271.25 | 177.75 | 100 |
| Cold-drawn condition · 0.2 < d ≤ 0.3 mm | 1950 ～ 2242.5 | 175.5 | 100 |
| Cold-drawn condition · 0.3 < d ≤ 0.4 mm | 1925 ～ 2213.75 | 173.25 | 100 |
| Cold-drawn condition · 0.4 < d ≤ 0.5 mm | 1900 ～ 2185.0 | 171.0 | 100 |
| Cold-drawn condition · 0.5 < d ≤ 0.65 mm | 1850 ～ 2127.5 | 166.5 | 100 |
| Cold-drawn condition · 0.65 < d ≤ 0.8 mm | 1825 ～ 2098.75 | 164.25 | 100 |
| Cold-drawn condition · 0.8 < d ≤ 1 mm | 1800 ～ 2070.0 | 162.0 | 100 |
| Cold-drawn condition · 1 < d ≤ 1.25 mm | 1750 ～ 2012.5 | 157.5 | 100 |
| Cold-drawn condition · 1.25 < d ≤ 1.5 mm | 1700 ～ 1955.0 | 153.0 | 100 |
| Cold-drawn condition · 1.5 < d ≤ 1.75 mm | 1650 ～ 1897.5 | 148.5 | 70 |
| Cold-drawn condition · 1.75 < d ≤ 2 mm | 1600 ～ 1840.0 | 144.0 | 70 |
| Cold-drawn condition · 2 < d ≤ 2.5 mm | 1550 ～ 1782.5 | 139.5 | 70 |
| Cold-drawn condition · 2.5 < d ≤ 3 mm | 1500 ～ 1725.0 | 135.0 | 70 |
| Cold-drawn condition · 3 < d ≤ 3.5 mm | 1450 ～ 1667.5 | 130.5 | 70 |
| Cold-drawn condition · 3.5 < d ≤ 4.25 mm | 1400 ～ 1610.0 | 126.0 | 70 |
| Cold-drawn condition · 4.25 < d ≤ 5 mm | 1350 ～ 1552.5 | 121.5 | 70 |
| Cold-drawn condition · 5 < d ≤ 6 mm | 1300 ～ 1495.0 | 117.0 | 70 |
| Cold-drawn condition · 6 < d ≤ 7 mm | 1250 ～ 1437.5 | 112.5 | 70 |
| Cold-drawn condition · 7 < d ≤ 8.5 mm | 1250 ～ 1437.5 | 112.5 | 70 |
| Cold-drawn condition · 8.5 < d ≤ 10 mm | 1250 ～ 1437.5 | 112.5 | 70 |
- DIN EN10270-3:2001-08 adopts EN10270-3:2001; it is retained separately from the 2011/2012 editions.
- The scope is cold-drawn stainless spring wire of round cross-section only. Select the nominal wire-diameter band and calculate tensile strength using actual diameter; units are MPa = N/mm².
- For 1.4310, NS and HS are separate ordered strength conditions and must not be mixed by default. NS/HS labels are not applied to 1.4401/1.4568.
- Table 2 note b: upper limit = the band's minimum tensile strength ×1.15; range within a production batch of the same heat ≤ that minimum tensile strength ×0.09. These requirements and the Table 3 packaging-unit range must be met separately; they do not replace one another.
- Clause 5.5.2/Table 3 concerns the range within one coil, spool, reel or bundle after straightening and cutting: 100MPa for d≤1.50mm and 70MPa for 1.50<d≤10.00mm.
- After straightening, tensile strength may fall by up to 10% (Table 2 note c). The listed data cover the cold-drawn state only; this clause has not been turned into another guaranteed interval.
- A lower tensile strength for improved formability requires explicit agreement by both parties (note d); the table's default limits are not automatically relaxed.
- Tensile strength of delivered cold-drawn wire is not the performance of a finished spring after heat treatment. Annex values for precipitation hardening of 1.4568 are not merged into default delivery strength (note e, 5.5.1 note 2).
- Diameters greater than 10mm and other unlisted diameters require agreement at inquiry and ordering; do not interpolate or extrapolate; Zero or negative wire diameters are invalid.
The Rm upper limit is calculated as the minimum in Table 2 Note b ×1.15; The range within a production batch is calculated as the minimum value ×0.09. Neither is an independent cell-by-cell upper limit in the original table.
X7CrNiAl17-7 · EN 10088-1-2005
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material form
- Reference record
- Original record status
- Original standard verified
- Standard edition
- EN 10088-1-2005
- Table / clause
- Table 3 and continuation, notes a–d; all 30 martensitic and precipitation-hardening corrosion-resistant steel grades
- PDF page references
- 1、3、9、10
Carbon-equivalent reference
Estimates are presented separately for each applicable composition condition. Match the actual ordering conditions; ranges must not be combined.
Table 3 default Ni 6.5–7.8%
Note d: the Ni maximum may be raised to 8.3% to improve cold-deformation performance; applicable conditions must be confirmed
Composition record (conditional branches apply; this is not an unconditional requirement)
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 7.8 |
| Al | 0.7 ～ 1.5 |
Applicability and limitations
EN10088-1:2005, Table 3 including its continuation, heat analysis wt%; official English SIST adoption preview PDF9/10. ; Note a: unlisted elements must not be intentionally added without purchaser consent, except additions needed to finish the heat; blanks are not filled with zero or a general residual maximum. ; Note b distinguishes sulfur conditions for long products, machining, welding and polishing only for grades marked b; it is not extended to all grades. ; Note c: a narrower C range may be agreed at enquiry and ordering; Without a contract, the original table range is not replaced. ; Note d: only for X7CrNiAl17-7 to improve cold-deformation performance, the Ni maximum is 8.3%; select separately from default 7.8. ; A designation-list standard does not independently establish cold-heading suitability, mechanical-property delivery requirements or product supply; Adopted editions such as NF/DIN are not automatically verified by this European main text.
Original condition-branch records
Table 3 default Ni 6.5–7.8%
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 7.8 |
| Al | 0.7 ～ 1.5 |
Note d: the Ni maximum may be raised to 8.3% to improve cold-deformation performance; applicable conditions must be confirmed
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 8.3 |
| Al | 0.7 ～ 1.5 |
A condition branch must be selected
YesVerification notes
All 30 rows of Table 3 and footnotes visually checked.X7CrNiAl17-7 · EN 10270-3-2011
Chemical composition source verified; this does not verify every standard clause, actual supply or measured heat results
- Material category
- Stainless steel
- Subcategory
- Stainless spring steel
- Material form
- Reference record
- Original record status
- Original standard verified
- Standard edition
- EN 10270-3-2011
- Table / clause
- Table1, note a–e; 1.1–1.3; 4.4.1–4.4.2
- PDF page references
- 6、7、8
Carbon-equivalent reference
Estimates are presented separately for each applicable composition condition. Match the actual ordering conditions; ranges must not be combined.
Table 1 base range: Ni 6.50–7.80%
Note d, improved cold formability: the Ni maximum may be as high as 8.30%; applicable conditions must be confirmed
Composition record (conditional branches apply; this is not an unconditional requirement)
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 7.8 |
| Al | 0.7 ～ 1.5 |
Applicability and limitations
EN 10270-3:2011 Table 1 heat analysis, mass fraction wt%; The source is an official public SIST excerpt of 11 pages; all 6 rows of Table 1 and notes a–e are included in full.. The scope is stainless spring steel wire with a circular cross-section diameter ≤10mm, usually delivered in the cold-drawn condition.; Mechanical requirements must be agreed upon for 10–15mm and other steel types not listed separately in Table 1; cold-heading product applicability shall not be automatically confirmed based on this. Table 1 Note a allows other compositions to be agreed upon; the ranges listed in the table shall not be altered without such agreement.; Clause 4.4.2: Apply product-analysis tolerances separately under EN10088-3; for the same element in the same heat, deviations must not occur both above the upper limit and below the lower limit.. Note c allows the use of 1.4436 to improve corrosion resistance, subject to the provisions of this standard for 1.4401.; The chemical composition of 1.4436 is not listed separately in this table and shall not be duplicated as the same composition. Note d allows the Ni upper limit to be increased to 8.30% only when improving the cold forming performance of X7CrNiAl17-7, which is listed as a separate condition.; Unlisted elements are not entered as zero. Chemical clauses and footnotes have been verified; it is not declared that all mechanical properties, dimensional tolerances, tests, and annex contents have been verified..
Original condition-branch records
Table 1 base range: Ni 6.50–7.80%
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 7.8 |
| Al | 0.7 ～ 1.5 |
Note d, improved cold formability: the Ni maximum may be as high as 8.30%; applicable conditions must be confirmed
| Element | Composition requirement |
|---|---|
| C | ≤ 0.09 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
| Mn | ≤ 1.0 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Cr | 16.0 ～ 18.0 |
| Ni | 6.5 ～ 8.3 |
| Al | 0.7 ～ 1.5 |
A condition branch must be selected
YesVerification notes
All 6 rows in the officially published original SIST, Table 1, note a–e, scope and Clause 4.4 were visually checked; this is not verification of the complete DIN textX7CrNiAl17-7 · DIN EN 10151-2002
Original-source verification is incomplete; this is not a formal standard reference
- Material category
- Stainless steel
- Subcategory
- Precipitation-hardening stainless steel
- Material form
- Reference record
- Verification status
- Reference data; original source not verified
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| Al | 0.7 ～ 1.5 |
| C | ≤ 0.09 (lower limit not stated) |
| Cr | 16 ～ 18 |
| Mn | ≤ 1 (lower limit not stated) |
| Ni | 6.5 ～ 7.8 |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
Applicability and limitations
A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.
X7CrNiAl17-7 · ISO 15510-2014
Original-source verification is incomplete; this is not a formal standard reference
- Material category
- Stainless steel
- Subcategory
- Precipitation-hardening stainless steel
- Material form
- Reference record
- Verification status
- Reference data; original source not verified
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| Al | 0.7 ～ 1.5 |
| C | ≤ 0.09 (lower limit not stated) |
| Cr | 16 ～ 18 |
| Mn | ≤ 1 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Si | ≤ 1 (lower limit not stated) |
Applicability and limitations
A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.
X7CrNiAl17-7 · ISO TS 15510-2003
Original-source verification is incomplete; this is not a formal standard reference
- Material category
- Stainless steel
- Subcategory
- Precipitation-hardening stainless steel
- Material form
- Reference record
- Verification status
- Reference data; original source not verified
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| Al | 0.7 ～ 1.5 |
| C | ≤ 0.09 (lower limit not stated) |
| Cr | 16 ～ 18 |
| Mn | ≤ 1 (lower limit not stated) |
| P | ≤ 0.04 (lower limit not stated) |
| S | ≤ 0.015 (lower limit not stated) |
| Si | ≤ 0.7 (lower limit not stated) |
Applicability and limitations
A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.