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DIN 1.4980 — X5NiCrTiMoVB25-15-2 European A286 Designation
DIN 1.4980 is the German Werkstoff-Nummer (material number) for A286, with the long-form material designation X5NiCrTiMoVB25-15-2. This is the canonical European designation for the iron-nickel-chromium precipitation-hardening superalloy known in the US as A286 / UNS S66286. The chemistry, heat-treatment, and mechanical properties are equivalent to AMS 5731 / 5732 / 5737 and ASTM A453 grade 660; the designation differs by national standard system. DIN 1.4980 appears on European aerospace drawings (Airbus, Eurocopter, Snecma), industrial drawings (Siemens, MAN, Alstom), and customer specifications throughout the EU and UK. See parent A286 AMS / ASTM specifications hub, related A286 equivalent grades, UNS S66286, and the canonical A286 chemical composition.
Spec Scope & Coverage
DIN 1.4980 covers A286 chemistry in all forms — bar, forging, sheet, plate, tube, wire — under the German Werkstoff-Nummer system. Specific German application standards reference DIN 1.4980 for specific forms: DIN 17240 (heat-resistant steels for elevated-temperature service), DIN EN 10269 (fasteners for high-temperature service), and others. The X5NiCrTiMoVB25-15-2 long-form designation parses as: X = high-alloy designation, 5 = 0.05 % carbon max (×100), NiCrTiMoVB = element symbols, 25-15-2 = 25 % Ni-15 % Cr-2 % Ti nominal.
A286 Chemical Composition (UNS S66286)
| Element | Min % | Max % | Notes |
|---|---|---|---|
| Iron (Fe) | Balance | Balance | ~53 % typical |
| Nickel (Ni) | 24.0 | 27.0 | Solid-solution stabilizer |
| Chromium (Cr) | 13.5 | 16.0 | Corrosion + oxidation resistance |
| Titanium (Ti) | 1.90 | 2.35 | Gamma-prime former (Ni3Ti) |
| Molybdenum (Mo) | 1.00 | 1.50 | Solid-solution strengthener |
| Vanadium (V) | 0.10 | 0.50 | Carbide stabilizer |
| Aluminium (Al) | 0 | 0.35 | Gamma-prime former (Ni3Al) |
| Boron (B) | 0.001 | 0.010 | Grain-boundary strengthening |
| Carbon (C) | 0 | 0.08 | Per ASTM A453 |
| Manganese (Mn) | 0 | 2.00 | Per ASTM A453 |
| Silicon (Si) | 0 | 1.00 | Per ASTM A453 |
| Phosphorus (P) | 0 | 0.025 | Trace impurity |
| Sulphur (S) | 0 | 0.015 | Trace impurity |
DIN 1.4980 — X5NiCrTiMoVB25-15-2 European A286 Designation — Spec Requirements
| DIN designation | US equivalent | Form / scope | Notes |
|---|---|---|---|
| DIN 1.4980 | UNS S66286 / A286 | Universal — all forms | Werkstoff number |
| X5NiCrTiMoVB25-15-2 | UNS S66286 / A286 | Universal | DIN material designation (long form) |
| DIN 17240 | ASTM A453 grade 660 (similar) | Heat-resistant steels | Heat-resistant steel application standard |
| DIN EN 10269 | ASTM A453 grade 660 (similar) | High-temp fasteners | EU fastener standard for elevated temperature |
| DIN 17742 (historical) | AMS 5731 (similar) | Solution-treated bar | Older German bar spec, largely deprecated |
| DIN 17743 (historical) | AMS 5732 (similar) | Sol+aged bar | Older German bar spec |
When to Specify DIN 1.4980 — X5NiCrTiMoVB25-15-2 European A286 Designation
- European aerospace drawings: Airbus A320 / A330 / A350, Eurocopter Tiger / NH90, Snecma engine drawings cite DIN 1.4980 + AMS 5732 reference.
- European industrial drawings: Siemens SGT / MAN MGT-6000 / Alstom industrial gas-turbine drawings cite DIN 1.4980 for A286 fastener and component manufacture.
- UK aerospace drawings: Rolls-Royce Trent / Pearl engine drawings cite DIN 1.4980 + applicable BS standard.
- US specification (alternative): For US-spec drawings, cite UNS S66286 / AMS 5732 / ASTM A453 grade 660 instead of DIN 1.4980.
- Petrochemical European service: DIN 17240 / DIN EN 10269 for European petrochemical bolted-joint applications.
- Single-source spec for global procurement: Material can be certified per DIN 1.4980 + UNS S66286 + AMS 5732 simultaneously — single mill cert covers global drawing references.
DIN 1.4980 — X5NiCrTiMoVB25-15-2 European A286 Designation — Frequently Asked Questions
What is DIN 1.4980?
German Werkstoff-Nummer (material number) for A286 — the iron-nickel-chromium precipitation-hardening superalloy. Equivalent to UNS S66286 / AMS 5731 / 5732 / 5737 / ASTM A453 grade 660. The long-form material designation is X5NiCrTiMoVB25-15-2.
How is DIN 1.4980 equivalent to A286?
Chemistry identical to UNS S66286 within the spec tolerance bands. Heat-treatment per DIN 17240 / DIN EN 10269 produces equivalent mechanical properties to ASTM A453 grade 660 / AMS 5732 — 130 ksi tensile, 95 ksi yield in sol+aged condition.
Should I cite DIN 1.4980 or AMS 5732 on European drawings?
Both — modern European aerospace drawings typically cite DIN 1.4980 (or X5NiCrTiMoVB25-15-2) for material designation + AMS 5732 (or applicable ASTM) for fabrication condition. Single mill cert covers both.
What does X5NiCrTiMoVB25-15-2 mean?
DIN material long-form designation: X = high-alloy (≥ 5 % alloy elements), 5 = 0.05 % carbon max, NiCrTiMoVB = element symbols (Ni, Cr, Ti, Mo, V, B), 25-15-2 = nominal element percentages (25 % Ni, 15 % Cr, 2 % Ti). Equivalent to UNS S66286 chemistry.
Are DIN 17240 / DIN EN 10269 different specs?
DIN 17240 is the application standard for heat-resistant steels covering A286 + similar alloys. DIN EN 10269 is the harmonised European fastener standard for high-temperature service. Both reference DIN 1.4980 / X5NiCrTiMoVB25-15-2 for A286.
Is DIN 1.4980 still active?
Yes — DIN 1.4980 remains the canonical Werkstoff number for A286 in Germany and across the EU. Modern drawings increasingly use ISO designations harmonised with US AMS, but DIN 1.4980 is still cited and accepted on European drawings.
Is the DIN 1.4980 chemistry exactly the same as UNS S66286?
Yes — within the spec tolerance bands. DIN 1.4980 chemistry conforms to the UNS S66286 element ranges. Trace elements may have slightly tighter or looser tolerance per DIN application standard but the alloy is identical.
Can a single A286 lot be certified per DIN 1.4980 AND AMS 5732 simultaneously?
Yes — a single material lot satisfying UNS S66286 chemistry + sol-treated + precipitation-aged heat-treatment can be certified per multiple specs simultaneously. Single mill cert lists all applicable specs the lot satisfies.
What's the lead time on DIN 1.4980 material?
Same as AMS 5732 / ASTM A453 grade 660 — material is identical, certifications cite the requested standards. Standard sizes 5-50 mm: 4-6 weeks; larger 50-200 mm: 6-10 weeks. EN 10204 type 3.1 mill cert standard.
Mechanical Properties per This Spec
| Property | DIN 1.4980 (sol+aged) | Notes |
|---|---|---|
| Tensile strength (MPa) | ≥ 895 | Per DIN 17240 / EN 10269 |
| Yield strength 0.2 % (MPa) | ≥ 655 | European industrial standard |
| Elongation (%) | ≥ 15 | In 50 mm gauge |
| Hardness HRC | 29-32 | Aged target |
A286 Products Manufactured per This Spec
TorqBolt manufactures the following A286 products to this specification:
Mating & Related Specifications
Common mating and related A286 specifications used alongside this spec:
- UNS S66286 — Equivalent US designation.
- AMS 5732 — US aerospace bar/forging equivalent.
- ASTM A453 grade 660 — US industrial bolting equivalent.
Drawing Call-Out Example
A286 hex bolt, DIN 1.4980 (X5NiCrTiMoVB25-15-2), sol-treated and aged, M16 × 2.0 × 80 mm, DIN 933 dimensional, 6g thread, EN 10204 3.1.
Related A286 Specifications & Reference
Other A286 specifications: AMS / ASTM hub · AMS 5525 · AMS 5731 · AMS 5732 · AMS 5737 · AMS 5853 · AMS 5895 · ASTM A453 grade 660 · ASTM A638 grade 660 · ASTM B637 · DIN 1.4980 · UNS S66286.
Canonical A286 reference: A286 chemical composition · A286 mechanical properties · A286 heat treatment · alloy comparisons (vs Inconel 718 · vs Waspaloy).
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