GB/T 9441-2009 Replaced National standards

GB/T 9441-2009 Metallographic test for spheroidal graphite cast iron

Publish Date: 2009-10-30 Implement Date: 2010-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 9441-2009

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: Casting

ICS Name: Iron

Publish Date: 2009-10-30

Implement Date: 2010-04-01

Pages: 19 pages

Scope

This standard specifies the evaluation method of the microstructure of nodular cast iron under an optical microscope.
This standard stipulates the evaluation methods for spheroidization grading, graphite size, number of graphite balls, amount of pearlite, dispersed ferrite, phosphorus eutectic, and carbide, and lists the corresponding grading charts.
This standard is applicable to the evaluation of the metallographic structure of ordinary and low-alloy nodular cast iron in the as-cast, normalized, and annealed states.