Carbon Steel Seamless Pipe Sour Service API 5L X52 PSL2
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Payment
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Origin
China Mainland
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Minimum Order
5
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Packing
Pieces
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- Description
Product Detail
The consequences of sudden failures of metallic components used for the oil and gas production associated with their exposure to H2S- containing production fluids led to the development of NACE mr0175 AND subsequently EFC Publication 16[15] NACE MR0175/ISO 15156-1[20] and -2 was developed using those sources to provide requirements and recommendations for materials qualification and selection for application in environments containing wet H2S in oil and gas production systems. Carbon and low alloy steels selected using ISO 15156—2 are resistant to cracking in defined H2S containing environments in oil and gas production but are not necessarily immune to cracking under all service conditions. Different service conditions might necessitate the alternative testing that is dealt with in ISO 15156—2:2003, Annex B. That annex specifies requirements for qualifying carbon and low alloy steels for H2S service by laboratory testing.
It is the purchaser’s responsibility to select the carbon and low-alloy steels suitable for the intended service
HIC/SSC test
The test for evaluation of resistance-to hydrogen- induced cracking shall meet the following acceptance criteria, with each ratio being the maximum permissible average for three sections per test specimen when tested in solution (Environment) A (see ISO 15156-2:2003, Table B.3):
a) crack sensitivity ratio (CSR) = 2 %;
b) crack length ratio (CLR) = 15 %;
c) crack thickness ratio (CTR) = 5 %;
If HIC/SSC tests are conducted in alternative,media to simulate specific service conditions, alternative acceptance criteria may be agreed.
Hardness test
For test pieces subjected to a hardness test , the hardness in the pipe body, the weld and HAZ shall be = 250 HV10 or 22 HRC (70,6 HR 15N).
The maximum acceptabie hareness of an unexposed weld cap and external surface HAZ and base metal may be 275 HV10 or 26 HRC (73,0 HR 15N) where the equipment user agrees to the alternative weld cap hardness limit, the parent pipe wall thickness is greater than 9 mm, the weld cap is not exposed directly to the sour environment and the escape of hydrogen is not impeded, e.g by cathodic protection.
Details of the NACE steel pipe
Product name | NACE steel pipe for soure service |
Material standard | NACE MR0175 |
Inspection standard | NACE TM0284, TM0177 |
Material available | API 5L GR.B, X42, X52,X56, X65 ,ASTM A106 GR.B |
Type | Seamless, LSAW, ERW(EFW) |
Section shape | round |
Size | OD*WT=21.3-1219mm*4-82.33mm |
Thk schedule | SCH40, STD, SCH60, SCH80,SCH160 |
Length | random length or fixed length (6-13M) |
NACE inspection | HIC, SSC |
Inspection party | SGS, Maurer lab, BV |
Inspection time | 60 days |
Brand | Wuzhou, Galaxy |
NACE test report | provided with offer |
Goods in stock | Some size is available |
MOQ | 100 Tons |
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