Product Details

Delivery Time:3-5 days
Certification:CE,FCC,MSDS

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

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