China fabricante de alta qualidade 0.5mm aisi304 sus304 bola de aço inoxidável para a válvula

FOB Referência Preço:Obter Cotação Imediata
US$ 0,01 - US$ 50,00 / Quilograma | 10 Quilograma/quilogramas (Min. Ordem)
relatório de Atividades Suspeitas
Visão Geral
Detalhes Rápidos
Esfera de aço inoxidável 440c
Brinquedos Decoração de unhas Polimento Etc
HRC 25-58
Lugar de origem:
Shandong, China
QISHENG Esfera de Aço Inoxidável
Número do Modelo:
201/304/316 de Aço Inoxidável
Alta Polido
Nome do produto:
Anti-desgaste de Alta precisão 0.5 milímetros 440 cStainless aço bola com SGS
Espelho Fnish
0.5mm -- 80mm
Saco de plástico + caixa da Caixa
Outro serviço personalizado:
Fatias de Superfície
Amostras Oferecidos
0.01 milímetros
Capacidade de fornecimento
Capacidade de fornecimento:
50 Ton/Tons per Day
Embalagem e entrega
1. 25 kg por caixa da exportação, 50 caixas em um palete
2. 25 kg por sacos de plástico em sacos de tecido
3. 10 kg por caixa então no caso de madeira
4. 250Kg por tambor De Aço e 4 tambor de aço em um palete
5. nós podemos embalar de acordo com a exigência de clientes
Qingdao Shanghai Ningbo
Tempo de execução: :
Shipped in 10 days after payment


China supplier  anti-wear  High precision 0.5mm 440cStainless steel ball with SGS 


Production name

Stainless steel ball


201/ 202/ 301 /304/ 316/ 316L/ 420/ 440/ 440C






HRC 58-65

Quality certificate



High hardness and resistance, easy storage, corrosion resistance


1. 25Kg per export carton

2. Plastic bags in woven bags

3. 500Kg per Steel drums

4. We can pack according to customers’ requirement



Bearing, stamping/hydraulic parts, valve, seal mechanical refrigeration equipment, high precision crafts, toys bicycle and so on



500 kilograms

Payment terms

T/T, L/C, Western union

Delivery time

No more than 25 days

Port of Loading

Qingdao port/ Shanghai port/ Tianjin port



Heading: In the first step, heading machines cut wire into short lengths and form it into spherical shapes between dies.

Deflashing: The flash line, a ridge left by the forming dies, is removed as balls roll between heavy, cast iron plates.

Soft Grinding: Similar to deflashing, except that a grinding stone is used to improve precision.

Heat-treating: Carbon steel balls are next carburized and hardened. Heat treatment imparts the desired hardness and case depth.

Descaling: This step removes the residues and by-products from the heat-treating process.

Hard Grinding: Slow, meticulous grinding assures proper sizing and sphericity, with tolerances as closeas ±.0001". 

Lapping: Several proprietary lapping processes can bring balls to the requirements of ISO 3290 Grade10 - 48.  

Finishing: Proprietary chemical and mechanical processes give the balls their final micro-smoothed finish, for increased wear resistance and product longevity.

Quality Test:


Our Steel Ball is equipped with the most advanced production machines and testing instruments. With our sophisticated equipments, we can perform all the following processes on steel ball: roundness testing, vibration testing, random value detection, surface smoothness detection, Rockwell hardness testing, etc



Company Information

 Ningyang Qisheng Industry and Trade Co.,Ltd was founded in 1994, have more than 20 years experience in producting carbon steel ball, chrome steelball and stainless steel ball,etc. The annual production capacity is about 3,000 ton and most of them are exported to Japan, Canada, South-Africa, Chile etc more than 10 countries and areas in the world.
    Our company can product and supply all kinds of steel ball. Material can be carbon steel,chrome steel and stainless steel, The diameter is 0.5mm-50.8mm, grade is G10- G2000, and the hardness is hrc58-62. Our steel ball mainly used for automobiles, motorcycle, bicycle, precision bearing, precision machinery and wheels, trundles etc. Meanwhile, special product can be customized according to clients request.
    About the quality, we win high reputation from the customers and also we have obtained the Certificate of ISO 9001 Quality System. Our products are in strict accordance with the GB/T308, the Germany DIN5401-1993-2002, the United States ANSI/AFBMA Std. 10-1989, ISO3290-75 international quality system standard production. The quality of them can meet different requirement of different customers.






Why choose us

 1.  China leading manufacturer for Steel ball, with main products carbon

     steel ball, chrome steel ball and stainless steel ball.

2.  Factory price and best quality

3.  Accept custom order

4.  Fast delivery, there are emergency stocks for regular sizes.

5.  Easy storage

6.  OEM Service

7.  We promise all inquiry and emails will get our reply within 8 hours

8.  Convenient payment

A.  T/T 30% deposit,70% before shipment

B.  L/C at sight

C.  100% western union in advance

D.Trade assurance order on ALI Platform

9.  Professional production team / production line, experienced experts

10. Capacity: 500 Ton per month


1.  Which kind of steel balls that you need?

We manufacture Carbon steel ball, Stainless steel ball, Chrome steel ball, Bicycle steel ball, Caster steel ball, Soft steel ball, Drawer slide steel ball, Grinding ball, Zinc plated steel ball, Bronze plated steel ball, Nick plated steel ball....

2.  What are the balls in material?

Carbon steel: AISI1010, AISI1015, AISI1045, AISI1065, AISI1085, AISI1086 etc

Stainless steel: AISI302, AISI304, AISI316 and 316L, AISI420 and 420c, AISI440 and 440c etc

Chrome steel: AISI E52100

3.  What size can you made?

We can supply steel ball with size range 0.5mm-50.8mm.

4.  What is the grade of steel ball?

From G10-G2000.

5.  Can you provide free sample?

  Yes, we are glad to supply free sample.

6.  How about your quality contral?

100% inspection before delivery in order to ensure the quality of

our products.

7.  Could you quote today?

We will quote immediately if detailes for products are enough.

8.  How about your packing?

We can make packing according to clients’ request.

Standard seaworthy packaging: Carton box+pallet/ Plastic bag+steel drum/ PP woven bag etc

9.  Do you have any certificate?

Yes, our company have ISO 19001:2008 certificate.

10.         What standard of your steel ball comply with?

ISO3290-1998, AFMBA1989, DIN5401-93, GB_T 308.1-2013 and other equivalent international standards.


Sofia Zhang

Ningyang Qisheng Industry and Trade Co.,Ltd

T: +86 531-69926853 M: +86 18769755967 (Whatsapp, Wechat)
Skype: Sofia_3978


Add: Qizhou Road ,Huaiyin District ,Jinan City ,China

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