Butt weld fittings SB366 Inconel800, Inconel 800H, Inconel 800HT, Inconel 825,Inconel926 Elbow,Tee, Reduce, Cap​

Incoloy 800H/AT is an austenitic heat resistant alloy designed for high temperature structural applications. The strength of 800H/AT 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/AT 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

Specifications

ASME SB 407 Code Case 1325, ASME SB 408, ASME SB 409
ASTM B 407, ASTM B 408, ASTM B 409
UNS N08810, UNS N08811
W. Nr./EN 1.4958, W. Nr./EN 1.4959

Inventory

800H/AT Coil, 800H/AT Plate, 800H/AT Sheet, 800H/AT Welding Products

Common Trade Names

800H, Incoloy® 800, Alloy 800

Features

· High design stresses for ASME Section VIII applications to 1650°F

· Useful oxidation resistance through 1800°F

· Resistant to chloride ion stress corrosion cracking

Applications

· Nitric acid catalyst supports

· Reformer outlet pigtails and manifolds

· Heat exchangers

· Pressure vessels

· Dampers

Physical Properties

Density: 0.287 lb/in3
Melting Point: 2475 - 2525°F

* 70°F to indicated temperature.

Mechanical Properties

Representative Tensile Properties

Typical Creep- Rupture Properties