Standard No.:	GB/T 25047-2010
English Name:	Metallic materials—Tube—Ring-expanding test
Chinese Name:	金属材料 管 环扩张试验方法
Chinese Classification:	H23    Metal processing property test method
Professional Classification:	GB    National Standard
ICS Classification:	77.040.10 77.040.10    Mechanical testing of metals 77.040.10
Issued by:	AQSIQ;SAC
Issued on:	2010-9-2
Implemented on:	2011-6-1
Status:	superseded
Superseded by:	GB/T 25047-2016 Metallic materials - Tube - Ring-expanding test
Superseded on:	2017-7-1
Language:	English
File Format:	PDF
Word Count:	4000 words
Price(USD):	120.00
Delivery:	via email in 1~3 business day

本标准规定了采用圆锥状顶芯将金属管环试样扩大直至发生断裂，以揭示金属管环试样表面和管环壁内部的缺陷的管环扩张试验方法。本标准也可用来评定金属管承受塑性变形的能力。本标准适用于外径为18mm~150mm（包括150mm）、壁厚为2mm~16mm（包括16mm）的金属管。