🧪 WRC-1992 / DeLong Diagram (Ferrite Number FN 4 to 12 / Hot Cracking Prevention)

Stainless Steel Weld Ferrite Number Calculator

Calculate delta-ferrite content in austenitic stainless steel welds (304L, 316L, 347) using the WRC-1992 and DeLong constitutional diagrams: calculate Ferrite Number (target FN 4 to 12 balancing solidification hot cracking resistance against high-temperature sigma phase embrittlement), magnetic Feritscope calibration, and sanitary piping profits.

1. Project & Operating Inputs

Sanitary Stainless Welds Verified (Weld Count e.g. 180 Sanitary Welds)

Chromium Equivalent Creq (% e.g. 19.5% Creq)

Customer Bid Price for Ferrite Scope Verification & QA Report ($ / Weld)

Fischer Feritscope FMP30, Reference Calibration Blocks, CWI Inspector ($)

2. Financial Breakdown & Yield

WRC-1992 FERRITE NUMBER (FN)

Turnkey Sanitary Welding QA Profit

High-Alloy Welding Metallurgy Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost