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97019 MARTENSITIC STAINLESS STEEL SEAMLESS LINEPIPE WITH SUPERIOR WELDABILITY AND CO2 CORROSION RESISTANCE

Picture for 97019 MARTENSITIC STAINLESS STEEL SEAMLESS
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Product Number: 51300-97019-SG
ISBN: 97019 1997 CP
Author: Y. Miyata, M. Kimura, T. Koseki, T. Toyooka, F. Murase
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Two types of new martensitic stainless steel with good weldability and superior corrosion resistance have been developed for line pipe application. Both steels are suitable for welding without preheating owing to lowering C and N contents, and they show good low temperature toughness in welds without PWHT. One is applied to sweet environments. It gives better resistance to CO2 corrosion than the 13Cr martensitic stainless steel for OCTG. Lowering C and addition of Ni contribute to reduction of general corrosion rate in the CO2 environment. The addition of Cu improves the pitting resistance. The other is applied to light sour environments. It gives good SSC resistance in welds owing to the improvement of the pitting resistance due to Mo addition. The seamless pipes of these martensitic stainless steels are applicable as substitutes for a part of duplex stainless steel flow lines. Keywords: martensitic stainless steel, seamless pipe, line pipe, flow line, weldability, carbon dioxide corrosion, pitting, sulfide stress cracking, low temperature toughness
Two types of new martensitic stainless steel with good weldability and superior corrosion resistance have been developed for line pipe application. Both steels are suitable for welding without preheating owing to lowering C and N contents, and they show good low temperature toughness in welds without PWHT. One is applied to sweet environments. It gives better resistance to CO2 corrosion than the 13Cr martensitic stainless steel for OCTG. Lowering C and addition of Ni contribute to reduction of general corrosion rate in the CO2 environment. The addition of Cu improves the pitting resistance. The other is applied to light sour environments. It gives good SSC resistance in welds owing to the improvement of the pitting resistance due to Mo addition. The seamless pipes of these martensitic stainless steels are applicable as substitutes for a part of duplex stainless steel flow lines. Keywords: martensitic stainless steel, seamless pipe, line pipe, flow line, weldability, carbon dioxide corrosion, pitting, sulfide stress cracking, low temperature toughness
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97029 PERFORMANCE OF 12CR-4NI IN SIMULATED MODERATELY SOUR PRODUCTION ENVIRONMENTS

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97058 RIPPLED STRAIN RATE TEST FOR CRA SOUR SERVICE MATERIALS SELECTION

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Picture for Sulfide Stress Cracking (SSC) Resistance of AISI 420 Modified (13Cr) Martensitic Stainless Steel Bar
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51317--9645-Sulfide Stress Cracking (SSC) Resistance of AISI 420 Modified (13Cr) Martensitic Stainless Steel Bar

Product Number: 51317--9645-SG
ISBN: 9645 2017 CP
Author: Karthik Krishnan
Publication Date: 2017
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This paper discusses a study wherein the SSC resistance of 13Cr bar stock quenched and tempered to 22 HRC maximum hardness was tested and evaluated beyond the maximum H2S limit of 10 kPa (1.5 psi) established in NACE MR0175/ISO 15156-3 for use in sour service.

 
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