You are here: Home » Products » Stainless Steel Ball » 304 Stainless Steel Ball

304/304L Stainless Ball

Stainless Steel Ball(304, 304L) is a type of ball made from stainless steel

304/304L Stainless Steel Ball

304/304L stainless steel ball is a widely used steel ball on the market. It can be used in medical equipment, chemical industry, aviation, aerospace, plastic hardware: perfume bottles, sprayers, valves, nail polish, motors, switches, electric irons, washing machines, refrigerators, air conditioners, medicinal materials, auto parts, bearings, instruments, and baby bottles.

Specifications of 304/304L Stainless Steel Ball

International Standards and Material Codes

GB/T AISI EN JIS
304 304 1.4301 SUS304L

Chemical Composition

  C Si Mn P s Cr Ni
304 ≤0.07% ≤1.00% ≤2.00%  ≤0.045% 

≤0.03%

17.0-19.0% 8.0-10.5%
304L ≤0.03% ≤1.00% ≤2.00% ≤0.045% ≤0.03% 18.0-20.0% 8.0-12.0%

304/304L Stainless Steel Ball Physical Properties

Item Parameters
Tensile strength 100,000 to 180,000 psi
Yield strength 50,000 to 150,000 psi
Elongation 55 to 60%
Elastic modulus 29,000,000 psi
Density .286 lbs/cubic inch

Grade: G100 to G1000

  Ball diameter variation Spherical deviation Surface roughness Diameter variation Diameter tolerance
Gade Vdws △Sph Ra Vdwl Tdn
Not Over
μm
40 1 1 0.08 2 *
60 1.5 1.5 1 3 *
100 2.5 2.5 0.1 5 ±12.5
200 5 5 0.15 10 ±25
500 12.5 12.5 * 25 ±50
1000 25 25 * 50 ±125

How to Build 304/304L Stainless Steel Balls

Cold Heading

The cold heading uses equipmentZ32-7.5. The purpose is to be able to punch the steel wire out of the qualified ball blank. After the steel ball is cold heading, the next processing process is carried out.

Screening

Screening, the balls after the hard grinding is initially screened through the screening machine, and the unqualified ball will be eliminated.

Polish Steel Balls

Polishing ball process is to initially polish the ball blank into a circle. It's a very important process.

Soft Grinding

The machine M360 is ued for soft grinding.

Oil Removal

Oil removal equipment, put the ball into the equipment, after screening, separate the ball from the oil.

Hard Grinding

Hard grinding is the method of grinding the ball after heat treatment with grinding wheel in the grinding machine. Its role is to further improve the accuracy and surface quality.

Measuring Instrumentation

After the hard grinding, the steel ball will be measured in accuracy, hardness, etc., and the three-needle measuring instrument will be used to check whether the expected effect is achieved.

Cleaning

After screening, the steel ball is cleaned again and then dried.

Sorting

After cleaning, the steel ball will be qualified into the container through the sorting machine, and finally manually test to complete the whole process of steel ball production.

Contact Our Team

NOT SURE WHICH 304/304L STAINLESS BALL RIGHT FOR YOU?

Features of  304/304L Stainless Steel Balls

  304 stainless steel balls are known for their excellent corrosion resistance and complete non-magnetic properties, making them suitable for the food, chemical, and medical industries.

  Their lower hardness makes them suitable for low-wear applications, but they are not resistant to strong acids.

  Their high precision and cost-effectiveness make them widely used in roller-ball bottles and valves.

Application of 304/304L Stainless Steel Balls

304 statinless steel ball
 

 

304 statinless steel balls
 

 

304 statinless steel ball
 

Know Detailed Information

Please Download Catalogue Here  

Our Factory

Changzhou Risheng Steel Ball Co., Ltd. is located on the eastern shore of Taihu Lake, adjacent to Shanghai, with convenient transportation. Since its establishment in June 1995, the company has been dedicated to developing and manufacturing steel balls, integrating research and development with trade.

For many years, Risheng building on the foundation of the Wujin Metal Ball Research Institute, has been committed to researching steel ball manufacturing technology. We primarily produce shaft steel balls (AISI 52100), stainless steel balls (AISI 201/304/316/420/440/430), and carbon steel balls (AISI 1015/1045/1085) with diameters ranging from 0.8mm to 25.4mm, with precision grades up to G10, G40, and G100. We also offer custom specifications for alloy steel balls, military steel balls, copper balls, UFO balls, ceramic balls, and other metal balls. 

Packaging & Deliver of 304/304L Stainless Steel Ball

High-strength inner packaging: Shockproof foam bags or custom plastic boxes are used to secure each 304/304L stainless steel ball in place, protecting it from impacts and scratches.

Moisture-proof protection: A moisture-proofing agent is added to effectively prevent the impact of moisture on the product during transportation.

Sturdy outer packaging: Thickened corrugated cardboard boxes or wooden pallets (for large orders) are used to ensure safe long-distance transportation.

Clear labeling: Product specifications, quantity, and drop warnings are clearly marked on the outer packaging box for easy verification and safe handling.

Service Process
You can expect sound service from risheng service technicians when and where you need it most. From our application insight to our confidence at the counter, risheng will work to answer your requests with expert care and promptness. We know your better than anyone.
  • 1
    Speciality SERVICES
    Professionally manufactured 304/304L stainless steel balls, using precision technology to ensure excellent hardness and corrosion resistance, suitable for industrial precision applications.
  • 2
    Quality SERVICES
    High-quality 304/304L stainless steel balls, strictly quality inspected, with high surface finish and hardness up to HRC 50-55, provide reliable and durable performance.
  • 3
    Extra Mile PRICING
    High-quality service response, rapid customized production, global logistics distribution, technical consultation and after-sales support to meet diverse needs.
Quality Certification
FAQ of 304/304L Stainless Steel Ball
  • Q What are the benefits of 304 stainless steel balls

    A
    • Corrosion Resistance: Ideal for wet or corrosive environments.
    • Hygiene: Non-porous and easy to sterilize, suitable for food and medical use.
    • Durability: High wear resistance and long service life.
    • Aesthetic: Polishable to a mirror-like finish for decorative purposes.
  • Q What are the material properties of 304 stainless steel balls?

    A
    • Composition: 18% chromium, 8% nickel, with iron and trace elements.
    • Hardness: Approximately 25–39 HRC (Rockwell C) post-hardening.
    • Corrosion Resistance: Excellent against mild acids, alkalis, and saltwater.
    • Non-Magnetic: Austenitic structure makes them non-magnetic in annealed condition.
  • Q What are the main applications of 304 stainless steel balls

    A
    • Industrial: Bearings, ball screws, and check valves in food processing, chemical, and pharmaceutical equipment.
    • Grinding Media: Used in ball mills for mixing or grinding materials.
    • Decorative: Jewelry, sculptures, or architectural elements due to their polished finish.
    • Medical: Components in surgical instruments or implants where hygiene is critical.
  • Q What are 304 Stainless Steel Balls?

    A

    304 stainless steel balls are solid spheres crafted from grade 304 stainless steel, known for its excellent corrosion resistance and formability. They are used in bearings, valves, grinding media, and decorative applications.

     

CONSULT YOUR STAINLESS STEEL BALL EXPERT

We help you avoid the pitfalls to deliver the quality and value your stainless steel ball need.
Contact us

PRODUCTS

QUICK LINKS

CONTACT US

  info@rsbearingball.com
       sales@rsbearingball.com
  +852 6825 8658
    Panjia Town, Summer Villa Village ,Wujin District, Changzhou City, China
COPYRIGHT © 2025  CHANGZHOU RISHENG STEEL BALL CO., LTD.   ALL RIGHTS RESERVED.