
We are a professional stainless steel ball manufacture with18years experience history. we are specialised to produce stainless steel ball as below.
Size of AISI304 316 302 202 0.4mm-50.8mm G100-G1000
Size of AISI420 420C 440C 0.4mm-50.8mm G10-G1000
Our factory main products:
1) Stainless Steel Ball ( 201/ 304/ 316/ 420/302/440/410/430/420C/440C)
2) Bearing chrome steel ball
3) carbon steel ball
4) Precision Steel Ball
5) Grinding Media Steel Ball
CHINA | USA | JAPAN | GERMANY | SWEDEN |
GB | AISI | JIS | DIN | SIS |
9Cr18Mo | 440C | SUS440C | X110CrMo15 | 3230 |
1Cr18Ni9 | 302 | SUS302 | X12CrNi188 | 1.43 |
0Cr19Ni 9 | 304 | SUS304 | X5CrNi189 | 1.4301 |
0Cr17Ni12Mo2 | 316 | SUS316 | X5CrNiMn18 | 10(1.4401) |
3Cr13 | 420 | SUS420J2 | X30Cr13 | 1.4028 |
Tolerance Level and Technical Requirements
Grade | Vdws(≤) | Sph(≤) | Ra(≤) | Vdwl(≤) | Tdn(≤) |
10 | 0.25um | 0.25um | 0.025um | 0.5um | * |
16 | 0.4um | 0.40um | 0.032um | 0.8um | * |
20 | 0.5um | 0.50um | 0.04um | 1um | * |
28 | 0.7um | 0.70um | 0.05um | 1.4um | * |
40 | 1.0um | 1.00um | 0.08um | 2um | * |
60 | 1.5um | 1.50um | 0.10um | 3um | * |
100 | 2.5um | 2.50um | 0.125um | 5um | ±12.5um |
200 | 5um | 5um | 0.2um | 10um | ±25um |
500 | 13um | 13um | * | 25um | ±50um |
1000 | 25um | 25um | * | 50um | ±125um |
420 is a martensitic stainless steel with 12% Chromium which is sufficient to give good corrosive resistance properties. .It’s best corrosive resistance is when hardened and surface is ground or polished. It has good ductility in the annealed condition but can be hardened up to 500HB (highest of the chromium grades) due to its excellent harden-ability, it is capable of getting hardened up to 56 HRC Rockwell or higher. Martensitic Grades are known for high hardness and allowances must be made for poor weld ability and usually allowances for a final harden and temper treatment. 420 steel is magnetic and welding is not recommended. Material will not pass the 72 hours salt bath test.
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Jiangsu Mittel Steel Industrial Limited is located in Wuxi City, a beautiful city near Shanghai. Wuxi is close to Shanghai (BAO STEEL) ,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy excellent geographic location and convenient water, land and air transportation. , Wuxi become the biggest stainless steel sheet ,plate and coil supply Centers in China. Jiangsu Mittel Steel Industrial Limited was established in 1998 years. as one of the largest stockists and manufacturers of industrial grade Stainless Steel products and derivatives in Wuxi ,We keep a stock of 50000 tons every month, so we can delivery goods in fast time.
Our company supplies cold/hot-rolled stainless steel
sheets,stainless steel coils and stainless steel Plate to many
steel factories from athome and abroad, including Shanxi Taigang
Iron& Steel CO, . Ltd (TISCO)Zhangjiagang Pohang (ZPSS),
Shanghai BAO STEEL, Ningbo Baoxin and steel factories in Taiwan
area, Mainland Chinese and foreign countries and regions.
Our long-term business lines are
201.202.304(1.4301).304L.316.316L(1.4404).430.409L, 309S
,310S(1.4845).317L.904L.S31803(1.4462).S32750.S32760, Finish: 2B,
BA, NO. 1 NO. 4, HL, 8K and so on...Meanwhile, our company is also
engaged in the long-term supply of homemade & imported medium
and thick plates, galvanized and carbon steel products.
Adhering to the principle of "quality first and customer
foremost",our company will offer long-term service to nationwide
manufacturers of household appliances, elevators, tableware,
ornaments, tanks and machines. We can offer precise frosted
wiredrawing, 8K mirror finishing and skim board oil-abrasion of
various specifications at any time. The precisely-processed
products will meet your requirements for high quality. Our company
is a modern enterprise integrating distribution and storage.
If you are interested in any of our products or would like to
discuss a custom order, please feel free to contact us. We are
looking forward to forming successful business relationships with
new clients around the world in the near future.