GB/T 9441-2009

Abolished

Metallographic test for spheroidal graphite cast iron

球墨铸铁金相检验

Standard Type

GBT

ICS

77.080.10

CCS

J31

Status

Abolished

Issue Date

2009-10-30

Implementation

2010-04-01

Centralized Committee

国家标准委

Issuing Authority

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Application Summary AI generated

This standard specifies the metallographic testing methods and classification of graphite morphology, matrix structure, and nodularity in spheroidal graphite cast iron. It is applied in foundries and quality control laboratories for evaluating the microstructure of ductile iron castings used in automotive, machinery, and pipe manufacturing. The standard ensures consistent material properties by providing a reference for acceptance testing and process optimization.

Related Standards

GB/T 222-2006 Permissible tolerances for chemical composition of steel products GB/T 9971-2004 Pure iron for raw material GB/T 4223-2004 Iron and steel scraps GB/T 718-2005 Foundry pig iron GB/T 1412-2005 Pig iron used for spheroidal graphite cast iron GB/T 4186-2002 Molybdenum-tungsten alloy rods GB/T 4184-2002 Tungsten-rhenium alloy wires GB/T 18255-2000 Coking viscous oil products--Determination ofdistillation range

Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.