Pitting Resistance Equivalent number (PREN)

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Pitting resistance equivalent number or PREN can change depending on the amount of individual elements in steel or alloy steel composition. PREN is required by certain specifications such as ASTM A 1049 (Standard specification for stainless steel forgings, Ferritic / Austenitic (Duplex), for pressure vessels and related components), NACE MR 0175 or ISO 15156 (Petroleum and natural gas industries- Materials for use in H2S- Containing environments in oil and gas production), ASTM A 995 (Standard Specification for Castings, Austenitic-Ferritic (Duplex) Stainless Steel, for Pressure-Containing Parts), ASTM A 890, NORSOK M-001, and other customer standard specifications require that the manufacturer provide the Pitting resistance equivalent number (PREN).
Please upload the heat Mill Test Certificate [MTC] or Material Test Report [MTR] using the Upload File option.

Pitting resistance equivalent number or PREN can change depending on the amount of individual elements in steel or alloy steel composition. PREN is required by certain specifications such as ASTM A 1049 (Standard specification for stainless steel forgings, Ferritic / Austenitic (Duplex), for pressure vessels and related components), NACE MR 0175 or ISO 15156 (Petroleum and natural gas industries- Materials for use in H2S- Containing environments in oil and gas production), ASTM A 995 (Standard Specification for Castings, Austenitic-Ferritic (Duplex) Stainless Steel, for Pressure-Containing Parts), ASTM A 890, NORSOK M-001, and other customer standard specifications require that the manufacturer provide the Pitting resistance equivalent number (PREN).

Please upload the heat Mill Test Certificate [MTC] or Material Test Report [MTR] using the Upload File option.

 

eMetallurgist will calculate the pitting resistance equivalent number (PREN) as required by ASTM, ASME, NACE, NORSOK,API, ISO, DNV, or Customer specifications and provide a certificate for PREN number with the heat number traceability which will be in compliance to your customer requirements. 

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