AS R30605

UNS-R30605

Product Specification: LION® R30605 (Haynes 25 / L-605 Type)

LION® R30605 is a high-performance, solid-solution strengthened cobalt-base alloy. Known in the industry as Haynes 25 or L-605, it is the strongest of the fabricable cobalt alloys. It combines excellent high-temperature strength with superior resistance to oxidation, sulfidation, and metal galling.

1. Key Technical Features

  • High-Temp Strength: Maintains exceptional mechanical properties for long-term service up to 980°C (1800°F).
  • Sulfidation Resistance: Superior resistance to sulfur-bearing atmospheres compared to standard nickel alloys.
  • Excellent Galling Resistance: Proven performance in metal-on-metal wear applications, such as high-temperature bearings.
  • Non-Magnetic: Remains non-magnetic even after severe cold working.

2. Technical Specifications (Nominal Composition)

ElemenSymbolWeight % (Typical)
KobaltCoKeseimbangan
TungstenW14.0 – 16.0%
KromiumCr19.0 – 21.0%
NikelNi9.0 – 11.0%
ManganeseMn1.0 – 2.0%
BesiFe≤ 3.0%

3. Mechanical Properties (Annealed Condition)

  • Ultimate Tensile Strength: ≥ 860 MPa (125 ksi)
  • 0.2% Yield Strength: ≥ 310 MPa (45 ksi)
  • Elongation: ≥ 30%
  • Hardness: ≤ 277 HB (Standard Annealed)

Industry Cross-Reference: UNS R30605 | AMS 5537 | AMS 5759 | Haynes 25 / L-605 Type.
Data verified against Haynes International and ASTM F90 metallurgical standards.