Standard No.:	GB/T 13925-2010
English Name:	Metallographs for high manganese cast steel
Chinese Name:	铸造高锰钢金相
Chinese Classification:	J31    Casting
Professional Classification:	GB    National Standard
ICS Classification:	77.040.01 77.040.01    Testing of metals in general 77.040.01
Source Content Issued by:	AQSIQ; SAC
Issued on:	2010-12-23
Implemented on:	2011-6-1
Status:	to be superseded
Superseded by:	GB/T 13925-2025 Metallographic test method for high manganese cast steel
Superseded on:	2026-1-1
Superseding:	GB/T 13925-1992 Metallographs for high manganese cast steel
Target Language:	English
File Format:	PDF
Word Count:	1000 words
Translation Price(USD):	60.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the sampling methods as well as the evaluation criteria for grading of microstructure, carbide, grain size and non metallic inclusion of metallographs for high manganese cast steel. This standard is applicable to the water toughened austenitic manganese steel cast (except for ZG120Mn7Mo1) which is specified in GB/T 5680.

Contents 1 Scope 2 Normative References 3 Sampling Methods 4 Microstructure 5 Carbide Grading 6 Grain Size Grading 7 Non Metallic Inclusion (Oxide + Sulfide) Grading