Incoloy 800HT / UNS N08811 / 1.4959 Nickel Alloy Seamless Tube ASTM B407
1. Grade: Incoloy 800HT
2. Process: VIR - VAR - ESR - Forging - Cold Rolling / Cold Drawing - Semifinished - Finished
3. Delivery Condition: Solution Annealed
4. Surface Condition: AP, BA, Polished
5. OD: 6-325mm
6. WT: 0.5-25mm
7. Length: Max. 25 meters
8. Specification: ASTM, ASME, GB, JIS, GOST, DIN, etc.
9. Packing: Plywood case, Bundle
800 H/HT Brief Description
800H/HT is an austenitic heat resistant alloy designed for high temperature structural applications. The strength of 800H/HT is achieved by controlled levels of carbon, aluminum and titanium along with a 2100°F minimum anneal to achieve a grain size of ASTM 5 or coarser.
800H/HT is commonly welded using RA82 (ERNiCr-3) bare wire for applications under 1450°F. RA330-04 (N08334) bare wire offers a closer match of thermal expansion coefficient, and somewhat higher strength. For maximum strength alloy 617 (ERNiCrCoMo-1) bare wire or 117 (ENiCrCoMo-1) covered electrodes are suggested. To avoid possible stress relaxation grain boundary cracking of N08811 in applications above 1000°F the welded fabrication may be heated 1650°F for about one hour per inch of thickness or 30 minutes minimum then air cooled.
Chemistry
| Cr | Ni | Mn | Si | Al | Ti | Al + Ti | C | Cu | P | S | Fe | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MIN | 19,0 | 30,0 | - | - | 0,15 | 0,15 | 0,85 | 0,06 | - | - | - | - |
| MAX | 23,0 | 35,0 | 1,5 | 1,0 | 0,6 | 0,6 | 1,2 | 0,1 | 0,75 | 0,045 | 0,015 | 39,5 |
Features
- High design stresses for ASME Section VIII applications to 1650°F
- Useful oxidation resistance through 1900°F
- Resistant to chloride ion stress corrosion cracking
Applications
- Nitric acid catalyst supports
- Reformer outlet pigtails and manifolds
- Heat exchangers
- Pressure vessels
- Dampers
The reason why you choose us
- The Leading manufacturer of nickel based alloy Porducts
- Over 20 years experience
- Small quantity, short time delivery
- Complete QC system & Advanced physical and chemical testing center
- Effective and strong technical support and custom-made solutions
- Choose the appropriate base metals for your needs
- Reliable certificate (ISO 9001/ROHS/BV/SGS/TUV)
