Nace Sp0170 Pdf //top\\ [Verified × MANUAL]

Partially. Duplex stainless steels are less prone to polythionic acid SCC because they have lower austenite content and greater resistance to sensitization. However, SP0170 recommends that if a duplex alloy has seen service above 300°C (572°F), similar precautions should be considered.

This acid forms when sulfur-containing deposits (sulfides) react with oxygen and moisture. The result? . This isn't just surface rust; this is cracking that can compromise the structural integrity of your vessel in a dangerously short amount frame. nace sp0170 pdf

: Maintaining temperatures above the dew point to prevent liquid water formation. Partially

Sensitization occurs in the heat-affected zone (HAZ) of welds. Ensure your NDE team knows where to look for cracking – typically adjacent to welds in the HAZ. nace sp0170 pdf