Effect of high temperature service on the complex through-wall microstructure of centrifugally cast HP40 reformer tube

Abstract Wiscalloy 25-35Nb is a high-temperature cast heat-resistant stainless steel with good creep-rupture properties. The alloy is centrifugally cast and is often used as petrochemical furnace tubing. This datasheet provides information on composition, physical properties, and tensile properties as well as creep. It also includes information on casting and joining. Filing Code: SS-654. Producer or source: Wisconsin Centrifugal.

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THERMALLOY 63W

Alloy Digest ◽

10.31399/asm.ad.ss0352 ◽

1978 ◽

Vol 27 (6) ◽

Keyword(s):

Corrosion Resistance ◽

High Temperature ◽

Physical Properties ◽

Tensile Properties ◽

Iron Alloy ◽

Heat Treating ◽

Centrifugally Cast ◽

Nickel Chromium ◽

Reformer Tubes ◽

Temperature Applications

Abstract THERMALLOY 63W is a cast nickel-chromium-tungsten-iron alloy produced for service at temperature up to 1900 F. Centrifugally cast reformer tubes comprise one of its high-temperature applications. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: SS-352. Producer or source: Abex Corporation, Engineered Products Division.

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Metallurgy and Behavior of Alloys for Reformer Furnaces

Volume 9: Eighth International Conference on Creep and Fatigue at Elevated Temperatures ◽

10.1115/creep2007-26001 ◽

2007 ◽

Author(s):

Carl E. Jaske

Keyword(s):

High Temperature ◽

Material Properties ◽

Material Behavior ◽

High Temperature Creep ◽

Centrifugally Cast ◽

Resistance To Oxidation ◽

Long Term Performance ◽

And Behavior ◽

Term Performance

This paper reviews the metallurgy and behavior of centrifugally cast heat-resistant alloys for ammonia, methanol, and hydrogen reformer furnaces. The alloys include HK and HP, as well as proprietary versions of these materials produced by various foundries. Alloying and metallurgical factors that affect resistance to oxidation, carburization, and high temperature creep are discussed. Examples of the effects of environment and temperature on material behavior are provided. Finally, the use of material properties to predict the long-term performance of reformer furnace components is reviewed.

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