Monday, February 1, 2021

[MW:31973] RE: 31969] NACE SP0472-PWHT - AMINE service

Hi,

 

These are very basic requirements for amine service. Typically,  weld hardness of 200HBW maximum  after PWHT is common requirement for amine service. You may find detailed description of the problem and engineering solutions in API RP -945: API RP 945 : Avoiding Environmental Cracking in Amine Units (ihs.com)

 

Thanks.

 

Pradip Goswami.P.Eng, IWE.

Independent  & Consulting Welding & Metallurgical Specialist

Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/

Email:pgoswami@rogers.com,pradip.goswami@gmail.com

Cell/Whasapp:1-905-9793232

 

From: materials-welding@googlegroups.com <materials-welding@googlegroups.com> On Behalf Of PSS
Sent: January 31, 2021 8:39 PM
To: Materials & Welding <materials-welding@googlegroups.com>
Subject: [MW:31969] NACE SP0472-PWHT - AMINE service

 

Experts

 

Client Requirement : Vessel shall be PWHT. Production Weld deposits hardness shall not exceed 200HBW after PWHT. Carbon steel welds shall comply with NACE STD SP0472 para. 2.2 & 3.3

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