天气预报15天查询> 家居> q345r是什么材质的钢材

q345r是什么材质的钢材

更新时间: 2020-12-07 17:39:24     

指的是一种合金钢。它的主要用途是锅炉压力容器常用材料。q345r具有良好的工艺性能和良好的综合力学性能,它属于一种压力容器专用板。它是一种低合金钢,它要比q345钢在抗拉强度、延伸率等方面的要求更高,此外,它还要求保证其冲击韧性。它是目前我国用量最大、销量最好、用途最广的压力容器专用钢板之一,现在被广泛用于化工、电站、石油、锅炉等行业。

关键词: q345r 什么 材质 钢材

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-3541055/ | 耗时:0.5972 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=3541055 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3541055 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3541055 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(3542028,3528062,3541369,3541243,3541629,1052926,3542351,3542496,1054802,3541335,3540954,1064471,3530523,1104205,3541533,3531173,3527741,3541515,1069013,3540868,3540883,3540820,3541401,3540941,3541203,3528543,3542310,3541590,1080379,3541646) ORDER BY field (ArticleID,3542028,3528062,3541369,3541243,3541629,1052926,3542351,3542496,1054802,3541335,3540954,1064471,3530523,1104205,3541533,3531173,3527741,3541515,1069013,3540868,3540883,3540820,3541401,3540941,3541203,3528543,3542310,3541590,1080379,3541646)