Standard No.:	GB/T 1415-2008
English Name:	Metric threads where pressure-tight joints are made on the threads
Chinese Name:	米制密封螺纹
Chinese Classification:	J04    Basic standards and general methods
Professional Classification:	GB    National Standard
ICS Classification:	21.040.30 21.040.30    Special screw threads 21.040.30
Issued by:	SAC
Issued on:	2008-07-30
Implemented on:	2009-2-1
Status:	valid
Superseding:	GB/T 1415-1992 Metric tape screw thread
Language:	English
File Format:	PDF
Word Count:	6000 words
Price(USD):	140.00
Delivery:	via email in 1~3 business day

本标准规定了牙型角为60°、米制密封螺纹的牙型、基本尺寸、公差和标记。
内螺纹有圆锥内螺纹和圆柱内螺纹两种,外螺纹仅有圆锥外螺纹一种。内、外螺纹可以组成两种密封配合形式:圆锥内螺纹与圆锥外螺纹组成锥/锥配合;圆柱内螺纹与圆锥外螺纹组成柱/锥配合。
本标准适用于管子、阀门、管接头、旋塞等产品上的一般密封螺纹联结。装配时,推荐在螺纹副内添加合适的密封介质,例如密封胶带、密封胶等。