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首页> 外文会议>Proceedings of the ASME India oil and gas pipeline conference 2013 >DEVELOPMENT OF API 5L X-80 PLATES PIPES AT ESSAR STEEL
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DEVELOPMENT OF API 5L X-80 PLATES PIPES AT ESSAR STEEL

机译：ESSAR钢开发API 5L X-80板和管道

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India is a large and rapidly growing economy. The energy requirements of the country in terms of oil products and natural gas is also huge. Given its vast geographical size, there is evergrowing need to transport these oil & gas products over large distances but economically. For this purpose, several new projects for laying of new pipe-line networks are at different stages of planning. In order to keep the cost of such large pipeline projects lower, countries around the world have shifted to higher strength API grades of steel. This was facilitated by advances in steel-making and processing technology and modern facilities that came up in advanced countries. India is no different and we have seen a gradual shift towards higher strength API grades being used for pipelines. Essar Steel has been a major producer of API grades of steel in India over the last 15 years initially through its hot-strip mill and more recently adding a state-of-the-art 5M wide plate mill as well as pipe mills, both LSAW & HSAW. Different alloy designs have been used around the world to produce high strength and high toughness API grades. These have produced essentially two types of microstructures which are either ferrite + pearlite or ferrite + acicular ferrite. But these microstructures show varying response to the pipe-making process. Choice of alloy design also has a major bearing on the cost of steel, but is partly influenced by mill capability. At Essar, while cost was a major determining criterion for selection of suitable alloy design, mill capability was not a constraint. Essar Steel has successfully produced X-80 plates and pipes with a modified HTP alloy design and using the new facilities of plate mill & pipe mill. The paper gives some of the key highlights of this development activity. This was a collaborative effort between the metallurgists & engineers at Essar Steel India Limited and experts from CBMM.
机译：印度是一个庞大且快速增长的经济体。该国在石油产品和天然气方面的能源需求也很大。鉴于其广阔的地理区域，人们越来越需要远距离但经济地运输这些石油和天然气产品。为此，用于规划新管道网络的几个新项目处于不同的计划阶段。为了降低此类大型管道项目的成本，世界各国已转向使用强度更高的API级钢。先进国家的炼钢和加工技术以及现代化设施的发展促进了这一发展。印度也是如此，我们已经看到逐步向管道使用更高强度的API级转变。在过去的15年中，Essar Steel一直是印度API级钢的主要生产商，最初通过其热轧机，最近又添加了最先进的5M宽板轧机以及LSAW钢管厂＆HSAW。世界各地已使用不同的合金设计来生产高强度和高韧性的API级。这些基本上产生了两种类型的微结构，即铁素体+珠光体或铁素体+针状铁素体。但是这些微结构显示出对制管过程的不同响应。合金设计的选择对钢的成本也有很大的影响，但是在一定程度上受到轧机能力的影响。在埃萨尔（Essar），尽管成本是选择合适合金设计的主要决定标准，但轧机能力并不是一个限制。 Essar Steel已成功生产了采用改良的HTP合金设计并使用了板轧机和管轧机的新设备的X-80板和管。本文提供了此开发活动的一些关键亮点。这是Essar Steel India Limited的冶金学家和工程师与CBMM专家之间的共同努力。

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