1.4980 — DIN 2510 material code SD
Material number 1.4980 (X6NiCrTiMoVB25-15-2 per DIN 267-13; also designated X5NiCrTiMoVB25-15-2 and equivalent to UNS S66286 / Alloy A-286) is an iron-nickel-chromium precipitation-hardening austenitic stainless steel superalloy. Per DIN 267-13 Table 2, supplied solution-annealed and precipitation-hardened (+AT+P), hardness 287 to 367 HV. Minimum service temperature −196 °C (cryogenic); maximum service 650 °C.
DIN 267-13 properties
| Material symbol | SD |
|---|---|
| Material number | 1.4980 |
| Material name (DIN 267-13) | X6NiCrTiMoVB25-15-2 |
| Equivalent designation | UNS S66286 / Alloy A-286 / X5NiCrTiMoVB25-15-2 |
| Heat treatment condition | +AT + P (solution-annealed and precipitation-hardened) |
| Hardness range (HV) | 287 to 367 |
| Minimum service temperature | −196 °C |
| Maximum short-term service temperature | 650 °C |
| Maximum long-term service temperature | 650 °C |
Source: DIN 267-13:2007-05, Table 2 (Steels and nickel alloys as in DIN EN 10269 for high and low service temperatures).
Alloy summary
1.4980 is iron-nickel-chromium based with nominal composition approximately 53 Fe – 25 Ni – 15 Cr – 2 Ti – 1.3 Mo plus small additions of vanadium, aluminium and boron. The alloy is age-hardenable, non-magnetic and oxidation-resistant. It retains tensile strength at elevated temperature and is used in aerospace jet-engine fasteners, industrial gas-turbine hardware, cryogenic service, and high-pressure DIN 2510 bolting in nuclear and offshore applications.
1.4980 is covered by ASTM A453 grade 660, ASTM A638 grade 660, and AMS specifications including AMS 5525 / 5731 / 5732 / 5734 / 5736 / 5737.
Applicable DIN 2510 parts
1.4980 (code SD) is specified where cryogenic service or sustained high-temperature creep resistance is required across the DIN 2510 component range.
- DIN 2510 Part 3: Stud Bolts (Type L, K, KU, Z, ZU)
- DIN 2510 Part 4: Studs (Type GP, GQ, GR, GS, HP, HQ, HR, HS)
- DIN 2510 Part 5: Hexagon Nuts (Type NF, TF)
- DIN 2510 Part 6: Cap Nuts (Type AF, BF)
- DIN 2510 Part 7: Extension Sleeves (Type D, E)
Companion DIN 2510 materials
- 24CrMo5: code G per DIN 2510 designation
- 25CrMo4: code KG per DIN 267-13
- 21CrMoV5-7: code GA per DIN 267-13
For mill test certificates (EN 10204 3.1 or 3.2) and quoted lead time on DIN 2510 components in 1.4980 / A-286, email info@torqbolt.com or WhatsApp +91-22-66157017.