L-605 Alloy Forgings
Metracore Alloys Private Limited manufactures and supplies L-605 Alloy Forgings in eight product forms: rolled rings, discs, shafts, sleeves, blocks, bushings, turbine components and custom precision shapes machined to drawing. L-605, also designated Haynes 25 (UNS R30605), is a cobalt-based superalloy engineered for exceptional strength and oxidation resistance at elevated temperatures.
Forged components in this grade hold their mechanical properties through continuous thermal exposure. Wear, thermal fatigue and corrosion advance slowly in service, which is why aerospace engines, combustion systems, turbine assemblies and high-temperature industrial equipment depend on the material. Bar and billet feedstock conforms to AMS 5759, and finished pieces carry EN 10204 3.1 certification.
Rigorous quality testing is carried out before despatch. Our laboratory verifies strength, dimensional accuracy, corrosion resistance and long-term durability on every forging, in line with international quality standards. Custom geometries forge to customer drawings alongside the catalogue shapes, from small bushings up to large ring blanks. Send your component drawings and quantities for a priced offer.
What Are L-605 Alloy Forgings?
L-605 Alloy Forgings (also called Haynes 25) are heat-treated components made from a high-strength, cobalt-based superalloy. The precision forging process refines its grain structure, resulting in superior toughness, longer fatigue life and uniform strength throughout.
Built for extreme heat, L-605 retains its strength where standard metals fail while resisting oxidation. Its unique surface hardens under friction to prevent wear and galling, and it maintains precise dimensions even after repeated thermal cycles.
Why Choose Metracore Alloys Private Limited?
L-605 Alloy Forgings Specifications
The table below defines our manufacturing scope for UNS R30605 Forgings, from material designations and forging routes through inspection methods and final certification.
Material Grade
L-605 (Haynes 25)
UNS Number
R30605
AMS Specification
while AMS 5537 applies to sheet material when required for specific components
ASTM Specification
ASTM F90
Forging Process
Open die forging, closed die forging, ring rolling; solution annealed
Product Forms
Rings, discs, shafts, sleeves, blocks, bushings, turbine components, custom forgings
Inspection Standards
Ultrasonic Testing (UT), PMI, mechanical testing, dimensional inspection, visual examination
Certification
EN 10204 3.1 Mill Test Certificate
Types of L-605 Alloy Forgings
Forged Rings
Forged Discs
Forged Shafts
Forged Sleeves
Forged Blocks
Forged Bushings
Forged Turbine Components
Custom Precision Forgings
Reach out to Metracore Alloys Private Limited for reliable L-605 Alloy Forgings solutions.
Technical Details of L-605 Alloy Forgings
Chemical Composition
| Element | Cobalt (Co) | Chromium (Cr) | Tungsten (W) | Nickel (Ni) | Iron (Fe) | Manganese (Mn) | Carbon (C) | Silicon (Si) | Phosphorus (P) | Sulphur (S) |
| Content (%) | Balance | 19.0 – 21.0 | 14.0 – 16.0 | 9.0 – 11.0 | 3.0 max | 1.0 – 2.0 | 0.05 – 0.15 | 0.40 max | 0.040 max | 0.030 max |
Mechanical Properties
| Property | Tensile Strength | Yield Strength (0.2% Offset) | Elongation | Hardness | Density | Modulus of Elasticity |
| Value | 860 MPa (125 ksi) min | 310 MPa (45 ksi) min | 30% min | Approx. 95-100 HRC (solution annealed) | 9.13 g/cm³ | 225 GPa |
Performance Advantages
Six advantages explain why buyers accept the cobalt premium for forged L-605 rather than choosing an affordable alternative nickel or iron grade.
- High-temperature strength allows the material to maintain its load-bearing capability at metal temperatures up to nearly 980°C, well past the point where austenitic stainless steels lose their rated strength.
- Oxidation and scaling advance slowly because the chromium-rich film regrows wherever service damages it, protecting wall sections through years of continuous firing.
- Creep resistance holds forged parts within drawing tolerance under sustained stress at firing temperature; slow deformation is the failure mode that retires competing alloys first.
- Fatigue performance benefits from forged grain flow. Cyclic loads that open cracks in cast structures leave wrought L-605 intact through thousands of start-stop cycles.
- Abrasion and wear protection comes from a cobalt matrix that stiffens under every sliding contact, a response most nickel-base grades cannot match.
- Extended service life follows from these five properties working together; longer overhaul intervals cut lifetime component cost.
Inspection & Industry Standards
Benefits of L-605 Alloy Forgings
Five practical benefits follow from the metallurgy described above, and each one shows up directly in operating cost and reliability.
- Extreme-temperature performance continues without loss of structural capability, heat after heat.
- Oxidation and thermal fatigue resistance keep surfaces sound through repeated heating cycles.
- Structural integrity exceeds cast or fabricated alternatives because grain flow runs unbroken through the part.
- Maintenance demand falls, since parts hold tolerance longer between scheduled inspections and strip-downs turn up fewer worn components.
- Critical aerospace applications receive a proven, certificated material with decades of documented service history.
Manufacturing Process of L-605 Alloy Forgings
L-605 Alloy Forgings Industrial Applications
Demand for L-605 Forged Components concentrates in seven application areas, and buyers in aerospace, defence, and power engineering account for nearly all of it.
Products
Exporter, Manufacturer & Supplier of L-605 Alloy Forgings in various grades, sizes, shapes and specifications.
FAQs
What Are L-605 Alloy Forgings?
L-605 alloy forgings are hot-worked components made from cobalt-base superalloy UNS R30605, supplied as rings, discs, shafts, and other shapes for high-temperature service.