Inconel 617 (UNS N06617) is a solid-solution Ni-Cr-Co-Mo superalloy combining high-temperature strength with oxidation and carburisation resistance. It is a key candidate for supercritical CO₂ cycles, advanced ultra-supercritical power plant and high-temperature gas-cooled reactor heat exchangers.
As a manufacturer and global exporter of special alloys since 2012, Shanghai Hangbo Alloy Group Co., Ltd. supplies Inconel 617 as round bars (φ2–600 mm, up to 12 m), plates & sheets (0.5–100 mm thick, up to 2500 mm wide), seamless tubes & pipes (φ6–630 mm OD, 0.5–40 mm wall), forgings & rolled rings (up to 7500 kg, 3500 mm OD), welding wire & coils (1.0–5.0 mm) — all with EN 10204 3.1 certified material test reports.
Inconel 617 Chemical Composition (wt%)
| Element | Content (wt%) | Element | Content (wt%) |
|---|---|---|---|
| Ni (镍) | ≥ 44.5 | Fe (铁) | ≤ 3.0 |
| Cr (铬) | 20.0–24.0 | C (碳) | 0.05–0.15 |
| Co (钴) | 10.0–15.0 | Ti (钛) | ≤ 0.60 |
| Mo (钼) | 8.0–10.0 | Si (硅) | ≤ 1.00 |
| Al (铝) | 0.80–1.50 | Mn (锰) | ≤ 1.00 |
Inconel 617 Mechanical Properties
| Property | Value |
|---|---|
| Tensile strength (Rm) | ≥ 655 MPa |
| Yield strength (Rp0.2) | ≥ 300 MPa |
| Elongation (A) | ≥ 30 % |
| Hardness | ≤ 200 HB |
| Density | 8.36 g/cm³ |
| Melting range | 1330–1380 °C |
| Thermal conductivity | 13.4 W/m·K |
| Young's modulus | 211 GPa |
| Max service temperature | 1100 °C |
Key Advantages
- Excellent creep strength retained to 1100 °C
- Cobalt plus molybdenum improve high-temperature stability
- Outstanding combined carburisation and oxidation resistance
- Good weldability, suitable for heavy welded structures
Relevant Standards
- ASTM B166
- ASTM B168
- ASTM B167
- ASTM B564
- UNS N06617
Typical Applications
- Gas turbine combustors and transition ducts
- High-temperature gas-cooled reactor intermediate heat exchangers
- Supercritical CO₂ cycle heat exchangers and piping
- Pigtails and collector pipes in reformer furnaces
- High-temperature heat-treat fixtures
Why Buy from Hangbo Alloy?
- Factory-direct manufacturer — founded 2012, headquartered in Shanghai Qingpu
- Full product range — bar, plate, sheet, strip, tube, forging, welding wire, flanges and machined parts
- Certified quality — ISO 9001:2015, GB/T 19001-2016, GJB 9001C-2017, EN 10204 3.1 mill test certificates with third-party inspection (SGS / BV / TUV) available on request
- Complete mill documentation — chemical analysis, mechanical test, ultrasonic test (UT), hardness and grain-size reports with every shipment
Contact Us — Shanghai Hangbo Alloy Group Co., Ltd.
Shanghai Hangbo Alloy Group Co., Ltd.
📍 No. 388 Songhuang Road, Qingpu District, Shanghai, China
📞 Tel / WhatsApp: +86 15618279078
✉️ Email: demi@nickel-alloy.com
🕒 Available 24 hours a day, 7 days a week — enquiries answered around the clock.
Send your drawing or enquiry (grade, form, size, quantity, standard) for a same-day quotation.
Frequently asked questions
What is the maximum service temperature of Inconel 617?
In oxidising atmospheres 617 resists oxidation to about 1100 °C. For load-bearing design the temperature must be chosen from creep and allowable stress data (for example ASME BPVC Section II Part D); long-term stressed design commonly falls in the 900–980 °C range.
What forms and sizes are available?
We supply Inconel 617 as round bars (φ2–600 mm, up to 12 m), plates & sheets (0.5–100 mm thick, up to 2500 mm wide), seamless tubes & pipes (φ6–630 mm OD, 0.5–40 mm wall), forgings & rolled rings (up to 7500 kg, 3500 mm OD), welding wire & coils (1.0–5.0 mm). Custom lengths, tolerances and machining to drawing are available on request.
What is the MOQ and lead time?
MOQ is flexible — trial orders from a single piece are welcome. Stock sizes ship in 3–7 days; custom forgings and machined parts typically 15–35 days depending on quantity and process.
Can you provide third-party inspection and shipping to my port?
Yes. SGS / BV / TUV or your nominated inspector can witness all tests before shipment. Full export documentation is provided, and we ship worldwide by sea or air on FOB, CIF or DDP terms.