Petrochemical-Hangbo Alloy

Hastelloy Selection Guide: C-276, C-22 & B-Series

2026年9月13日

Hastelloy Alloy Selection Guide: C-276, C-22 and B-Series Performance in Severe Corrosion Hastelloy is a trade f...

Carburization in Hydrocarbon Processing: Alloy Study

2026年9月8日

Carburization - the inward diffusion of carbon and precipitation of chromium-rich carbides at grain boundaries - is the dominant life limiter for furnace hardware in ethylene pyrolysis, steam reforming and refinery hydrocarbon service at 800-1100 degC. This comparative study of Incoloy 800H, Alloy 330, Inconel 601 and Inconel 602 CA reviews the carbon-transport mechanism, explains how nickel, silicon, chromium and aluminum block or slow carbon ingress, and provides tabulated attack-rate comparisons plus a practical alloy-selection framework.

Inconel 602 CA for Ethylene Cracking Muffles

2026年9月8日

Incoloy 800H (UNS N08810) has been the traditional wrought muffle alloy, but above ~1050 degC its chromia-scale strategy breaks down and its creep-rupture design allowables effectively disappear. Inconel 602 CA (UNS N06025 / W.Nr. 2.4633) replaces the chromia-only defense with a yttrium-stabilized Al2O3 + Cr2O3 duplex scale and publishes validated creep-rupture data to 1200 degC. This article quantifies the difference with comparative oxidation, creep and carburization data tables and closes with a cost-to-service-life analysis showing why 602 CA is now the specification of record for 1100-1200 degC ethylene cracking furnace muffle duty.

Products

Hastelloy Selection Guide: C-276, C-22 & B-Series

Carburization in Hydrocarbon Processing: Alloy Study

Inconel 602 CA for Ethylene Cracking Muffles

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