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EN 10269 Equivalents (Cross-Reference Master Table) (21CrMoV5-7 / EN 10269 / 1.7709)
EN 10269 equivalents across the major international bolting standards: the European Norm grades cross-reference to ASTM (US), AFNOR (France), Polish PN, JIS (Japan), GOST (Russia) and Chinese GB equivalents. The cross-reference table is the procurement bridge for dual-certified material orders and for re-qualification of legacy bolting on retrofit projects.
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Scope
EN 10269 specifies eight Cr-Mo-V and stainless bolting grades for elevated-temperature fastener service. Each grade has a near-equivalent in the ASTM, AFNOR and Polish PN systems. The cross-references are not always exact substitutes (chemistry windows differ slightly), so dual-certification from the same heat lot is the cleanest procurement path when both designations are required on the same project.
EN 10269 Master Cross-Reference Table
| EN 10269 | Werkstoff | ASTM A193 | AFNOR (NF) | Polish PN |
|---|---|---|---|---|
| 21CrMoV5-7 | 1.7709 | B16 (close) | 20CDV5.7 | 21HMF |
| 21CrMoV5-11 | 1.8070 | B16 (heavier section) | 21CDV5.11 | 20HMF |
| 24CrMoV5-5 | 1.7733 | B16 sub-set | 24CDV5.5 | 24HMF |
| 42CrMo4 | 1.7225 | B7 | 42CD4 | 40HM |
| 40CrMoV4-6 (Durehete 950) | 1.7711 | B16 sub-set | n/a | n/a |
| 20CrMoVTiB4-10 (Durehete 1055) | 1.7729 | n/a direct (above B16 envelope) | n/a | 20HMFTB |
| X22CrMoV12-1 (martensitic stainless) | 1.4923 | B6 (close) | X20CDV12 | n/a |
| X6CrNi18-10 (austenitic) | 1.4301 | B8 (close) | Z6CN18.10 | 0H18N9 |
How to Use the Cross-Reference
For European procurement specifying EN 10269 21CrMoV5-7: order the material with EN 10269 21CrMoV5-7 chemistry compliance. For US procurement specifying ASTM A193 Grade B16: order with dual-cert to EN 10269 21CrMoV5-7 plus ASTM A193 Grade B16 if cross-procurement is anticipated. The dual-cert protects against re-qualification if the project is re-spec'd mid-build.
Per-Grade Cross-Reference Pages
Detail per neighboring grade: vs ASTM A193 B16 (closest US cousin) · vs ASTM A193 B7 (carbon-Mo, no V) · vs ASTM A193 B8 (austenitic) · vs 21CrMoV5-11 (heavier-section variant) · vs 24CrMoV5-5 (lower-temp neighbor) · vs Durehete 1055 (premium Ti+B microalloyed) · vs 20CDV5.7 AFNOR · vs 21HMF Polish PN · vs 42CrMo4.
Frequently Asked Questions
Q. How exact are the EN 10269 to ASTM A193 cross-references?
Close but not exact. EN 10269 chemistry windows are typically tighter than the ASTM A193 windows. Chemistry that meets EN 10269 generally meets ASTM A193, but the reverse is not always true. Dual-certified material from the same heat lot is the cleanest procurement path.
Q. Is there a single AFNOR or NF designation equivalent to 21CrMoV5-7?
Yes. AFNOR 20CDV5.7 per NF A35-559 is the direct French equivalent of EN 10269 21CrMoV5-7. The chemistry windows are essentially identical with minor wording differences in the standard text.
Q. What is the Polish PN designation for 21CrMoV5-7?
Polish PN 21HMF per PN-89/H-84030. The 21HMF designation is widely used in Eastern European power-plant procurement (Polish, Czech, Slovak boiler and turbine bolting).
Q. Do you supply material with simultaneous EN, ASTM and AFNOR certification?
Yes. Triple-certification on call-out documents simultaneous compliance to EN 10269 21CrMoV5-7, ASTM A193 Grade B16, and AFNOR 20CDV5.7 for international projects that cross multiple jurisdictions.
Related Standards and Properties
Related standards: EN 10269 · EN 10278 · VdTUV Wb 350 · ASTM A193. Properties pages: Chemistry · Mechanicals · Heat Treatment · Hardness · Creep-Rupture. Back to the 21CrMoV5-7 Alloy Hub.
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