HS 25(L605)(Co-Cr-W)

1. Introduce

– HS : Abbreviation for Haynes Stellite

– Non-magnetic cobalt-based superalloy

– At 982℃, HS 25 Sheet has a 100-hour stress-rupture strength of 48 MPa

– Excellent oxidation and carbonization resistance up to 1037

– Excellent strength to 1176°C

– Highest strength of any cobalt alloy

– UNS R30605

* Stellite Alloys

1. A Co-Cr alloy designed for wear resistance
2. Alloys with Cr, C, W, Mo, etc. added to a Co base
3. Excellent corrosion, erosion, and wear resistance
   → Cause : Intrinsic properties of hard carbide phase dispersed in the CoCr alloy base

* UNS

1. Abbreviation for Unified Numbering Systems for Metals and Alloys
2. Unified unique numbering system for metals and alloys
3. A representative number that is compatible with metals and alloys defined in many material-related codes such as ASTM, AISI, ASME, AWS, etc.

* R : Reactive and Refractory Metals and Alloys

* UNS R30605 : 3XXXX : Cobalt

2. Property

– High temperature strength, wear resistance, corrosion resistance, formability, good weldability

– Excellent resistance to hydrochloric acid, nitric acid

[HS 25(L605) Chemical Composition (%)]

[HS 25(L605) Mechanical Properties]

[HS 25(L605) Physical Properties]

3. Standard & Specification

– Specification : UNS R30605

4. Available Form

– Plate, Sheet

– Bar, Rod

– Wire

5. Application & Product

– Aerospace, Medical

(1) Afterburner parts / (2) Turbine rings / (3) Turbine blades / (4) Implants