天气预报 > 科技 > l245是什么材质
l245是什么材质
更新时间: 2021-03-07 12:35:18  

1、L245是符合国内标准的低端管线用钢,它的化学成分如下: C:0.26 、 Mn:1.15 、S:≤0.030 、 P:≤0.030。L245规格是8-1240×1-200mm,其中L就是line管线的意思,而245指的是此钢材的屈服强度大于等于245MPa 。

2、同时它的抗拉强度大于等于415MPa且伸长率大于等于21.0%。L245的焊接性能非常好,主要用于石油以及天然气工业中的气、水和油的输送,它的焊条用J422或者J427都可以,焊丝的高强匹配是E71T-1。

关键词: l245 什么 材质

l245是什么材质相关经验

天气预报

最新推荐

页面:/news/view-882972/ | 耗时:0.9994 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=882972 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=882972 LIMIT 0,1
select * from tbl_Articles_sphinx where id=882972 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(3501848,1453857,1724611,493877,2145400,688127,1047718,1608729,1876749,435484,2090608,2005357,437929,3473418,2101001,1101636,999937,1082682,1421996,3155060,2616007,1105348,1718171,3289971,3040784,3259845,1141230,1172220,3118778,3115390) ORDER BY field (ArticleID,3501848,1453857,1724611,493877,2145400,688127,1047718,1608729,1876749,435484,2090608,2005357,437929,3473418,2101001,1101636,999937,1082682,1421996,3155060,2616007,1105348,1718171,3289971,3040784,3259845,1141230,1172220,3118778,3115390)