GB/T 2975-1998 Translated English of Chinese Standard. (GBT 2975-1998, GB/T2975-1998, GBT2975-1998): Steel and steel products - Location and preparation of test pieces for mechanical testing
https://www.chinesestandard.net, 2015 M11 17 - 21 páginas
This Standard specifies the requirements of the mechanical testing, sampling location and sample preparation of the section steel, steel bar, steel plate and steel tube defined in GB/T 15574. Through negotiation on both sides, this Standard may also adopt other metal products for sampling.
Preparation of test pieces
Annex B Informative
A6achinework and testing according to Figure Annex circle cross section Definitions and signs dissatisfies the requirements Figure A12 GB/T heat treatment Hexagons horizontal test piece Impact Rough Specimen Impact test piece leg ministry location of stretch longitudinal rolling steel main machine direction mechanical properties mechanical testing mechanical treatment Metallurgical Industry Ministry of Metallurgical original Ministry piece with maximum product standard rectangular section reference condition rough specimen according Rough Specimen Taken Round Steel Figure Rules for sampling sample preparation sample product sampling in mechanical sampling is taken sampling location Section Steel Figure select the location shift the sampling specimen of stretch square steel tube steel bar steel products steel tube according Steel Tube Impact steel tube permits steel with thickness stretch rough specimen take sampling according take the stretch technical commission test unit testing machine permits testing of steel thickness direction thickness on leg total cross section Tube Impact test width