Brake drum details
1)Material: Gray iron HT250, Meet the American Standard G3000, Also offer ductile cast iron.
2) Designer: Technical expert take in charge of making drawings for the sample offered by client.
3) Test requriment: Each piece should be strictly tested, Eg. Brake Drum Blance Test, Round Jumpness Test .
4) Casting: Automatic production line including sand mixing, moulding and pouring.
5) Machining: Brake drums are produced by CNC machining.
6) Inspection: Advance test equipment including CMM, tensile strength testing machine, hardness tester, spectrometer, parallel tester, etc.
7) Chermical composition:
C:3.0-3.3% Si:1.6-1.9% Mn:0.7-0.9% P:<0.12% S<0.12%
8) Mechanics performance:
Main body degree of hardness:163-255HBS
Testing rod tensile strength:>=220mpa
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