GB/T 33161-2016: Translated English of Chinese Standard (GBT 33161-2016, GB/T33161-2016, GBT33161-2016): Carburizing Steels for Automobile Bearings
https://www.chinesestandard.net, 2017/06/08 - 16 ページ
This Standard specifies the classification and codes, ordering content, dimensions, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certification of carburizing steels for automobile bearings.
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80 Start counting agreed As agreed Analysis of Iron Antimony batch Different pc batch of steels Blue Spectrophotometric Method bright round steels carburization method Chemical Analysis Chemical composition mass Coarse Fine Coarse cold-drawn round steels composition mass fraction conformity grade Content GB/T decarburized layer Deflection and Out-of-roundness delivery condition Delivery hardness depth of decarburized Designation and chemical Determination diameter and tolerance End Quenching Hardenability fail to pass finished steels furnace G20CrMo Grain size harmful defects High quality steels Hot rolled Hot-rolled round steels length of hair length of steels Metallurgical quality Methods for Chemical nominal diameter non-metallic inclusions Oxygen Oxygen content pc by pc pc of steel Photometric Method porosity purchaser retest series series series specified in GB/T specified in Table specimen number Spectrophotometric Method GB/T Steel and Alloy Steel and Iron steels are classified steels for automobile supplier Table 12 test specimens tolerances of nominal Tower Hair Cracks Ultrasonic testing