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x80

x80

x80

x80

1

However, X80 pipeline steel with PF as main morphology does not meet the specifications of the Second West-East Gas Pipeline Project .

以多边形铁素体为主的管线钢的强度不符合西气东输二线管道工程的技术要求。

2

The weldability of X80 pipeline steel was analyzed and its preheating temperature was determined .

针对 X80 管线钢进行了焊接性分析，确定其预热温度。

3

X80 pipeline steels with various alloying concepts and alloying systems can be used in the Second West-East Gas Pipeline Project .

在西气东输二线管道工程中，X80 管线钢采用了不同的合金设计思想和合金化体系。

5

Toughness distributions of different area on HAZ of grade X80 pipeline steel have been studied .

研究了 X80 级管线钢焊接热影响区不同区域的韧性分布。

6

The results show that X80 pipeline steel obtains sorbite after quenching and tempering , gets pearlite by normalizing .

结果表明：X80 钢经调质处理后得到索氏体，正火得到珠光体。

7

When the cooling rate is low , the microstructure of the pipeline steel X80 is mainly polygonal ferrite and little pearlite.

低冷速下，管线钢 X80 的组织均为多边形铁素体外加少量的珠光体；

8

The results show that the corrosion rate of X80 pipeline steel is the largest when the soil moisture content is 20%.

结果表明：土壤含水量达到 20%时，X80 管线钢在土壤介质中的腐蚀速度最大；

11

The core venue for the Jumping and Dressage events is a 100 -meter x 80 -meter all-weather sand arena , with a capacity for 18, 000 spectators .

举行场地障碍赛和盛装舞步赛的主场地是一个 100 米 x80 米全天候沙地主赛场，可容纳 18,000 名观众。

12

X80 alloy steel pipeline will be adopted on large scale on the Second West-East Gas Transmission Pipeline Project .

在西气东输二线工程中，将大规模的采用 X80 钢进行管线铺设。

13

In Jining branch pipeline of West to East Pipeline Project, X80 line pipes were put into industrial application for the first time .

在西气东输冀宁支线，X80 管线钢首次正式投入工业性应用。

14

Compares with traditional X80 steel , Duplex X80 steel exists less tendency of strain aging .

与普通 X80 钢相比，双相 X80 钢的应变时效倾向较小。

15

Pipe line steel (X60~X80) and helicoids steel (ADB610D) supplied to the three gorges projects have been put into large scale production.

铸机高技术高附加值产品的比例明显提高，X60~X80管线用钢和ADB610D三峡右岸蜗壳用钢已大批量生产。

16

with the increase of heat input , the strength of duplex X80 steel CGHAZ. reduces .

随焊接热输入的增加，双相 X80 钢 CGHAZ 的强度降低。

17

It can be used as welding criterion of X80 pipeline steel submerged-arc welding .

它可作为 X80 管线钢埋弧焊的推荐焊接规范。

18

X80 steel is used in China's West -East Gas Pipeline Project subject material .

X80 钢是我国西气东输二线工程采用的主体材料。

20

Impact Charpy toughness and local brittleness of HAZ of X80 line pipes made in China were studied .

研究了国产 X80 级管线钢热影响区的冲击韧性和组织的局部脆化。

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