UNS N06617 (Inconel 617 / W.Nr. 2.4663 / GH617)

1. Cross Reference Standards

Applicable Specifications

• Plate & Sheet: ASTM B168, AMS 5889
• Bar & Forging: ASTM B166, AMS 5887
• Seamless Tube & Pipe: ASTM B167
• Forged Fittings: ASTM B564
• Chinese National Standards: GB/T 14992, GB/T 15007

2. Chemical Composition (wt%, ASTM Specification Range)

3. Physical Properties (Solution Annealed Condition)

1. Density: 8.36 g/cm³
2. Melting Range: 1330～1380 °C
3. Long-term service temperature: ≤1100 °C; Short-term peak temperature: 1200 °C
4. Superior thermal conductivity & thermal expansion coefficient compared with tungsten-based superalloys, high specific strength

4. Room-Temperature Mechanical Properties (Solution Treated Standard Values)

• Tensile Strength (Rm): ≥710 MPa
• Yield Strength (Rp0.2): ≥340 MPa
• Elongation (A): ≥30%
• Hardness: HB ≤240

5. Key Material Characteristics

1. Excellent High-Temperature Oxidation & Carburization Resistance

    

   Combined Cr-Al oxide coating delivers ultra-low oxidation rate in air at 1000 °C; far superior to Inconel 600 / 601 against carburization and high-temperature sulfidation (H₂S / SO₂ flue gas).
    
2. Superior High-Temperature Creep & Thermal Fatigue Resistance

    

   Dual solid-solution strengthening by Co & Mo plus γ' precipitation hardening; resists deformation and cracking under cyclic thermal shock and long-term high-temperature loading.
    
3. Balanced Wet & Dry Corrosion Performance
    

• Stable in high-temperature flue gas, carburizing & sulfiding environments;
• Resistant to nitric acid, phosphoric acid, chloride media at ambient & moderate temperatures; high resistance to stress corrosion cracking (SCC).

4. Good Formability & Weldability
    
   Suitable for hot/cold rolling, forging and stamping. Matching filler metal: ERNiCrCoMo-1 (2.4675). Excellent TIG/MIG welding performance; no post-weld heat treatment required to retain high-temperature mechanical properties.

6. Typical Applications

Aerospace Gas Turbines

Thermal & Gas Power Generation

Nuclear Energy (High-Temperature Helium-Cooled Reactors)

Petrochemical Industry

Heat Treatment & Industrial Furnace Equipment

New Energy

7. Heat Treatment (Standard Delivery Condition)

8. Comparison with Similar Alloys

1. UNS N06600 (Inconel 600): No Co/Mo; poor high-temperature creep performance, limited service below 800°C
2. UNS N06601: Low Mo, no Co; good oxidation resistance but insufficient high-temperature strength
3. Haynes 230 (UNS N06230): No Co/Al; inferior oxidation and creep properties vs N06617
4. UNS N06617: Balanced high-temperature strength, oxidation resistance and sulfidation resistance; preferred nickel alloy for service above 1000°C

Products:

Alloy steel barrel type forging QT,quenching barrel forging,normalizing barrel forging,tempering barrel forging,sleeve forging QT,oil cylinder QT

Carbon steel barrel forging,alloy steel barrel type forging,stainless steel barrel forging,oil cylinder forging,after QT would enhance mechanical property,improve strength prolong working life.

Products reference:

Process procedure:

Forging process flow quality control:

1. Raw material steel ingot into warehouse(test the chemical content)
2. Cutting→ Heating(Furnace temperture test)
3. Heat treatment after forging(Furnace temperture test) Discharge the furnace(blank inspection)
4. Machining→ Inspection(UT,MT,Visal diamention, hardness)
5. QT→ Inspection(UT, mechanical properties, hardness, grain size)
6. Finish machining→ Inspection (dimension)
7. Packing and Marking(steel stamp, mark)→ Storage Shipment

Advantage

1. High-precision dimensional tolerance;
2. Excellent mechanical properties;
3. Produce different dimension based on customer’s requirements;
4. Advanced manufacture equipments and inspection devices;
5. Excellent technical personality;
6. Control the production procedure strictly;
7. Pay attention on the package protection;
8. Quality full service.