near 2000 kinds of brake dics
America G3000 standard
material: gray casting iron(HT250)
painted according to client request
vent &drill accodring to client request
standard weight
Roughness A:2.0
Roughness B:2.0
parallelism to surface A:0.08
parallelism to surface B:0.08
flatness of side A :0.06
flatness of side B :0.06
Runout of side A:0.1
Runout of side B:0.1
DTV:0.013
Hardness:HB180-HB190
Chemical composition:
C:3.00%~3.30%
Si:1.90%~2.30%
Mn:0.60%~0.90%
S:≤0.12% Max
P:≤0.20% Max
Tensile strength:180N/ mm2
The company has established and perfected methods, systems and standards for the quality inspection and quality control from material entry to product export, and for key procedures of
steel back shot blasting and gumming, material dosing g and mixing, hot pressing and thermal processing, the company has especially established strict inspection standards and special control
methods and means; and has equipped 12 sets of complete testing equipment controlling the whole production process.