Incoloy 800 (UNS N08800) is an iron-nickel-chromium heat-resistant alloy with 30–35% nickel and 19–23% chromium. It stays microstructurally stable and oxidation resistant at temperature while resisting nitric and organic acids, making it a cost-effective choice for heat exchangers and furnace tubing.
As a manufacturer and global exporter of special alloys since 2012, Shanghai Hangbo Alloy Group Co., Ltd. supplies Incoloy 800 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), flanges & pipe fittings (Class 150–2500, DN15–DN1200) — all with EN 10204 3.1 certified material test reports.
Incoloy 800 Chemical Composition (wt%)
| Element | Content (wt%) | Element | Content (wt%) |
|---|---|---|---|
| Ni (镍) | 30.0–35.0 | Cu (铜) | ≤ 0.75 |
| Cr (铬) | 19.0–23.0 | C (碳) | ≤ 0.10 |
| Fe (铁) | ≥ 39.5 | Mn (锰) | ≤ 1.50 |
| Al (铝) | 0.15–0.60 | Si (硅) | ≤ 1.00 |
| Ti (钛) | 0.15–0.60 |
Incoloy 800 Mechanical Properties
| Property | Value |
|---|---|
| Tensile strength (Rm) | ≥ 520 MPa |
| Yield strength (Rp0.2) | ≥ 205 MPa |
| Elongation (A) | ≥ 30 % |
| Hardness | ≤ 180 HB |
| Density | 7.94 g/cm³ |
| Melting range | 1357–1385 °C |
| Thermal conductivity | 11.5 W/m·K |
| Young's modulus | 196 GPa |
| Max service temperature | 1100 °C |
Key Advantages
- Iron-base chemistry costs less than comparable nickel alloys
- Oxidation resistant to about 1100 °C
- Resists nitric acid, organic acids and high-temperature steam
- Structurally stable — resists sigma phase formation
Relevant Standards
- ASTM B408
- ASTM B409
- ASTM B163
- ASTM B564
- UNS N08800
Typical Applications
- Heat exchanger and evaporator tube bundles
- Nitric acid and caprolactam plant
- Steam superheaters and boiler tubes
- Heat-treat furnace components
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 difference between 800, 800H and 800HT?
The chemistries are close; the difference is carbon content and heat treatment. 800 (C ≤ 0.10%) serves below 600 °C. 800H (C 0.05–0.10%) is solution annealed above 1120 °C to obtain a coarse grain (ASTM 5 or coarser) for improved creep strength up to about 815 °C. 800HT (C 0.06–0.10% with Al+Ti 0.85–1.20%) has a tighter composition and is solution treated for the highest creep-rupture strength, and is the standard choice for stressed components above 815 °C.
What forms and sizes are available?
We supply Incoloy 800 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), flanges & pipe fittings (Class 150–2500, DN15–DN1200). 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.