BEST QUALITY! STAINLESS STEEL BALL FROM CHINA

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Packaging Detail:	as customer requirement, bag/box/export/ carton/pallet.
Delivery Detail:	30DAYS

stainless steel balls 9mm
SS420 SS440C SS304 SS316
Good Quality Cheap Price
20 years Factory
ISO9001-2008

stainless steel balls 9mm

20 years steel ball manufacture

SS316 Stainless Steel Ball, SS304 Stainless Steel Ball,SS440 Stainless Steel Ball

SS420 Stainless Steel Ball, SS420C Stainless Steel Ball

Stainless Steel Ball Specification:

Material	Feature	General Applications
AISI 420	Magnetic, Harden-able, fair corrosion resistance	used for special bearings and valves where Balls requiring a combine -action of hardness and corrosion resistance
AISI 440C	Magnetic, highest hardness, good corrosion resistance	used in bearing nozzles and valves where lubrication is poor or absent
AISI 304	austentitic, corrosion resistance, slightly magnetic, however annealing can makes it non - magnetic	Used in valves and relevant application , food products, aerosols, home sprays, perfumes and medical equipment.
AISI 316	non - magnetic, good corrosion resistance even when exposed to marine atmosphere and sulfuric acid.	used in presence of sulphuric, phosphoric and acetic acids. Mainly used in chemical, paper and textile industries.
AISI 316	Characteristics same as 316 but with excellent corrosion resistance, Lower carbon content than regular 316.	expeci

Q:Why do casting parts have air holes?: There are many reasons for casting porosity, mainly due to:1. smelting process is unreasonable, metal liquid absorbs more gas;2. the gas in the mold invades the metal liquid;3. from the mold is more water brush, core dry;4. the casting has poor ventilation;5. ladle tools are not dry.Wait。

Q:How do casting parts remove stress?: Annealing treatment, according to different casting annealing treatment, eliminate thermal stress, if need to restore hardness or increase hardness, and then quenching treatment

Q:What is the difference between casting and stamping parts?: The purpose of forming processes is to allow the sheet to undergo plastic deformation without breaking the billet and to make the desired shape and size. In actual production, a variety of processes are often applied to a workpiece. Blanking, bending, shearing, drawing, bulging, spinning and rectification are several main stamping processes. The difference between stamping parts and castings: with thin, uniform, light, strong features, stamping can be produced by other methods difficult to make, with stiffeners, ribs, UPS or flanging of the workpiece, to improve its rigidity. Due to the use of precision molds, the workpiece accuracy up to microns, and repeated high precision, specifications consistent, you can punch out of the hole, lug and so on.

Q:Can the casting part be phosphating with the phosphating solution of the pickling board?: Like stainless steel casting, duplex stainless steel casting is phosphating, ductile iron gray iron is not required

Q:What is the reason for 304 stainless steel precision casting parts to be changed?: Mainly because of the cooling shrinkage caused by internal stress caused. There is the change of temperature distribution in materials element imbalance, is typical of surface and internal, thin wall and thick wall, bottom and top.

Q:How to distinguish the forging parts and casting parts accurately: Distinguish from performance:The processing performance of forged parts is higher than that of the same material. The forging parts are compact and have good mechanical properties, but the casting parts may have sand holes, holes, shrinkage holes and other defects, and their mechanical properties are inferior to those of forgings. At the same time, forging processing can ensure the continuity of the metal fibrous tissue, fibrous tissue to forging and forging shape consistency, metal streamline integrity, can ensure the parts with mechanical properties and long service life good.

Q:What foundry factories are used in the casting parts of China's major automobile manufacturers?: For example Changchun FAW, under a casting, two casting and other casting plant, but there are more than half of all outsourcing in Tianjin Hebei Shandong purchase, many automobile enterprises to casting foundry.

Q:Casting blank in the cooling process to release a large amount of heat energy, what can be recycled?: Casting, do not need to provide a rough casting foundry drawings, according to your chart will put foot margin in the processing needs of the surface, the rest of the size can be found according to the mechanical design manual and manual casting.

Q:When there is no flaw detection for large casting parts, is there any crack inside?: According to the industry standards, within the scope of the standard requirements to determine whether the product is qualified

Q:Which master knows how the casting tolerances for malleable iron, gray iron and ductile iron should be chosen? Hurry up, thank youCan you provide a tolerance scale for castings, please?: Usually manual molding optional CT11 class, ordinary machine modeling optional CT10 class, high pressure molding should reach CT9 level. The tolerances on the wall thickness of the casting are comparable to those of other dimensions of the same casting.

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