GB/T9945-2012 Ball flat steel

Ball flat steel refers to a type of steel that is mainly used for making bearings, such as angular contact ball bearings, cylindrical roller bearings, and tapered roller bearings. It is characterized by its high hardness, good wear resistance, and high elastic limit.

According to the standard, ball flat steel should be made from high-quality carbon structural steel or alloy structural steel, and its chemical composition, mechanical properties, and non-metallic inclusions should meet certain requirements. The standard also specifies the dimensions, tolerances, surface quality, and other technical parameters of ball flat steel.

In addition, the standard requires that ball flat steel should be inspected and tested before delivery, including chemical composition analysis, mechanical property testing, surface quality inspection, and ultrasonic flaw detection. The results of these tests should meet the specified requirements, and the products should be marked, packaged, transported, and stored according to the standard.

 

Q: Are you trading company or manufacturer ?
A: We are professional manufacturer for steel pipe/sheet/coil, and our company also is a very professional a trade company for steel products.we can also provide a wide range of steel products.
Q: Will you delivery the goods on time?
A: Yes,we promise to provide best quality products and delivery on time .Honesty is our company's tenet.
Q: Do you provide samples ? is it free or extra ?
A: The sample could can provide for customer with free,but the courier freight will be covered by customer account.
Q: Do you accept the third party inspection?
A: Yes absolutely we accept.