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13Cr 対 スーパー 13Cr: 比較分析

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In the challenging landscape of the oil and gas industry, material selection is pivotal to ensuring the longevity and efficiency of operations. Among the myriad of materials available, 13Cr and Super 13Cr stainless steels stand out for their remarkable properties and suitability in demanding environments. These materials have revolutionized the industry, providing exceptional resistance to corrosion and robust mechanical performance. Let’s delve into the unique attributes and applications of 13Cr and Super 13Cr stainless steels. Understanding 13Cr Stainless Steel 13Cr stainless steel, a martensitic alloy containing approximately 13% chromium, has become a staple in the oil and gas sector. Its composition typically includes small amounts of carbon, manganese, silicon, phosphorus, […]

油井管（OCTG）

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Oil country tubular goods (OCTG) is a family of seamless rolled products consisting of drill pipe, casing, and tubing subjected to loading conditions according to their specific application. (see Figure 1 for a schematic of a deep well): The Drill Pipe is a heavy seamless tube that rotates the drill bit and circulates drilling fluid. Pipe segments 30 ft (9m) long are coupled with tool joints. The drill pipe is simultaneously subjected to high torque by drilling, axial tension by its dead weight, and internal pressure by purging drilling fluid. Additionally, alternating bending loads due to non-vertical or deflected drilling may be superimposed on these basic loading patterns. Casing pipe […]

知っておくべきこと: フランジ面仕上げ

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The ASME B16.5 code requires that the flange face (raised face and flat face) has a specific roughness to ensure that this surface is compatible with the gasket and provides a high-quality seal. A serrated finish, either concentric or spiral, is required with 30 to 55 grooves per inch and a resultant roughness between 125 and 500 micro inches. This allows for various grades of surface finish to be made available by flange manufacturers for the gasket contact surface of metal flanges. Serrated Finish Stock Finish The most widely used of any flange surface finish, because practically, is suitable for all ordinary service conditions. Under compression, the soft face from […]

注文品 CAN/CSA-Z245.21 3LPE コーティングラインパイプの納品完了

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A customer that we have been following up for 8 years has finally placed an order. The order is for a batch of NPS 3“, NPS 4”, NPS 6“ and NPS 8” diameters, thickness SCH40, single length 11.8M, with 2.5mm thick 3-layer polyethylene coating for corrosion protection, which will be buried in the ground for natural gas transportation. The pipes are manufactured in accordance with API 5L PSL 1 Gr. B seamless pipe standard and the corrosion protection coating are manufactured in accordance with CAN/CSA-Z245.21 standard. Our seamless tubes are rolled in the world’s most advanced PQF mill, which is manufactured by SMS Group in Germany. Our 3LPE coatings are […]

PTT タイ – カンボジア石油桟橋プロジェクト

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PTT Thailand – Cambodia Oil Jetty Project Project: Oil Jetty Location: Cambodia Duration: February 2021 – July 2021 Required Product: Steel Pipes, Pipe Fittings, Pipe Flanges Specifications: API 5L Gr.B, ASME B16.9, ASME B16.5 Quantity: 75 Tons Steel Pipes, 130 Pieces Pipe Fittings and Flanges Use: Oil Jetty Submarine Pipeline System Coatings Specifications: DIN 30670-2012 3LPE Coating Use: Prevention of seawater and sea salt corrosion and lifespan extension