Inconel 625 (UNS N06625) is a Ni-Cr alloy strengthened mainly by molybdenum and niobium in solid solution. It reaches high strength without ageing heat treatment and offers a balanced combination of oxidation and corrosion resistance plus fatigue strength, making it one of the most widely used nickel alloys in offshore, chemical, nuclear and aerospace service.
Shanghai Hangbo Alloy Group Co., Ltd. supplies Inconel 625 Round Bar (φ2–600 mm) to ASTM B446 Inconel 625 bar — We supply nickel, high-temperature, titanium and stainless bars from 2 mm to 600 mm diameter — hot rolled, forged, peeled, ground or turned — to ASTM / AMS / GB with EN 10204 3.1 certification. All material ships with EN 10204 3.1 certified mill test reports.
Sizes & Specifications
| Item | Specification |
|---|---|
| Diameter range | φ2 – 600 mm |
| Length | 1 – 12 m, cut-to-length |
| Delivery condition | Hot rolled / Forged / Peeled / Ground / Turned |
| Tolerance | h9 – h11 (negotiable) |
| Common standards | ASTM B446, B166, B637, B348, AMS 5662 |
Inconel 625 Chemical Composition (wt%)
| Element | Content (wt%) | Element | Content (wt%) |
|---|---|---|---|
| Ni (镍) | ≥ 58.0 | Ti (钛) | ≤ 0.40 |
| Cr (铬) | 20.0–23.0 | C (碳) | ≤ 0.10 |
| Mo (钼) | 8.0–10.0 | Mn (锰) | ≤ 0.50 |
| Nb+Ta (铌+钽) | 3.15–4.15 | Si (硅) | ≤ 0.50 |
| Fe (铁) | ≤ 5.0 | P (磷) | ≤ 0.015 |
| Co (钴) | ≤ 1.00 | S (硫) | ≤ 0.015 |
| Al (铝) | ≤ 0.40 |
Inconel 625 Mechanical Properties
| Property | Value |
|---|---|
| Tensile strength (Rm) | ≥ 830 MPa |
| Yield strength (Rp0.2) | ≥ 414 MPa |
| Elongation (A) | ≥ 30 % |
| Hardness | ≤ 200 HB |
| Density | 8.44 g/cm³ |
| Melting range | 1290–1350 °C |
| Thermal conductivity | 9.8 W/m·K |
| Young's modulus | 205 GPa |
| Max service temperature | 980 °C |
Typical Applications
- Desalination and marine piping, pump shafts
- Flue-gas desulphurisation (FGD) systems
- Chemical reactors, heat exchangers and pickling equipment
- Nuclear and gas turbine piping systems
- Aero-engine exhaust systems and thrust reversers
- Sour oil and gas downhole tools and valves
Why Buy from Hangbo Alloy?
- Factory-direct manufacturer — founded 2012, headquartered in Shanghai Qingpu
- Cut-to-size service — bars cut to length, plates flame/plasma/laser-cut, tubes cut and bevelled to drawing
- Certified quality — ISO 9001:2015, GB/T 19001-2016, GJB 9001C-2017, EN 10204 3.1 certificates
- Complete mill documentation — chemical analysis, mechanical 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 MOQ and lead time?
MOQ is flexible — trial orders from a single piece or single plate are welcome. Stock sizes ship in 3–7 days; custom-cut, forged or machined items typically 15–35 days.
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, sea or air freight on FOB, CIF or DDP terms.
Do you supply machining to drawing?
Yes — CNC turning, milling, drilling, grinding and wire-cut from raw material to finished part in one factory, fewer hand-offs and less material waste.