Change material grade of Nuts

[salim sogec]

Dear Gents

Can we use ASTM A194 Grde-7 nus instead of ASTM A194 Grade-4nuts.

Because ASTM A194 Grade-4 nuts removed by the ASTM committee because globally lack of material availability.

Please advise.

Salim

[pgos...@rogers.com]

It should not be a problem, unless hardness and other mechanical properties are within the  specified design ranges . Please read this following blog for general guidance.

 

Thanks.

P.Goswami.P.Eng, IWE.

Independent  & Consulting Welding & Metallurgical Specialist

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

Email:pgos...@rogers.com,pradip....@gmail.com

Cell/Whasapp:1-905-9793232

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[Dhanabal Jalachandran]

Dear,

 

Yes this statement was issued back in 2015 or 2016 edition of ASTM A 194, please refer the latest version under Section 7.2

 

Best Regards

 

DHANABAL JALACHANDRAN

Senior Inspector | Yanbu Steel Company

CSWIP 3.2.2 & BGAS Gr 2

 

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[Rajavarman]

In ASTM A194 – 2017, its Section 7.2 Also deleted.

But Still ASME Sec 2 (SA-194) latest edition have Grade 4.

 

Just for information

 

 

என்றும் அன்புடன்,
Thanks & Regards,
RAJAVARMAN
+971561895584

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