Required chemical composition for carbon & low-allot steel and stainless steel per NACE MR0175/2021

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Oct 13, 2023, 1:00:47 PM10/13/23

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Hi experts,

This is related to chemical composition of carbon and low alloy steel per NACE MR0175-2021

Chemical composition for carbon and low alloy steel

Per Clause A.2.1.2 - Carbon & low-alloy steel are acceptable at 22 HRC max. hardness provided they contain less than 1% mass fraction Nickel.

Per Clause 8 - Max. acceptable level for flat-rolled produce is 0.003% mass fraction of sulfur

Max. acceptable level for seamless product is 0.01% mass fraction of sulfur

Conventional forgings with sulfur levels less than 0.025% mass fraction and castings are not considered sensitive to HIC and SOHIC

Is this the only minimum required chemical composition for carbon & low-alloy steel?

Can you please suggest the clause for chemical composition for stainless steels as well?

Regards,

Akash Wagh.

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