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Custom size high precision 2mm 3mm 3.175mm solid 304 316 420 440c stainless steel ball

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Port: Shanghai/Qingdao/Ningbo
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram,payments for offline orders.
Supply Ability: 10.0 Ton/Tons per Day
Place of Origin: Guangdong China
Sample: offer free sample
Grade: G10-G1000
Material: 201 304 316 420 440 440c,Stainless Steel
Model Number: Solid/Hollow
Hardness: HRC25-HRC58
Feature: Corrosion resistance, rust resistance and wear resistance
Brand Name: Pinzhan
Surface finish: Polishing
Type: Solid/Hollow
Applicable Industries: Hotels,Building Material Shops,Manufacturing Plant,Machinery Repair Shops,Food & Beverage Factory,Farms,Restaurant,Home Use,Food Shop,Printing Shops,Construction works ,Energy & Mining,Food & Beverage Shops
Product name: precision 2mm 3mm 3.175mm solid 304 316 420 440c stainless steel ball
Package: Plastic Bag + Cardboard Box + Wooden
Diameter: 0.3mm-60mm
Packaging Detail: Steel ball export carton in wooden case; the carton size:30*20*15CM wooden case:90*80*70CM.
Package Preview: https://sc01.alicdn.com/kf/HTB1UO9mckWE3KVjSZSyq6xocXXa3.jpg_640x640.jpg,https://sc02.alicdn.com/kf/He64960a40bed4d9aad3155e6f59a6691b.jpg_640x640.jpg
Foshan Gaoming Pinzhan Technology Co., Ltd.
Manufacturer, Trading Company
Response Rate
On-time delivery rate
US$ 40,000+
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Product Description
Product Name
Custom size high precision 2mm 3mm 3.175mm solid 304 316 420 440c stainless steel ball
Small MOQ and custom sizes
Tensile Strength
7.93 g/cm³
10~25 HRC 
80,000~180,000 psi 
7.98 g/cm³
10~25 HRC 
80,000~120,000 psi 
7.85 g/cm³
10~25 HRC
53,000 psi 
7.75 g/cm³
48~55 HRC 
95,000~250,000 psi 
7.70 g/cm³
 56~65 HRC  
275,000~285,000 psi
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304 stainless steel is a typical representative of austenitic steel. It is generally non-magnetic, but it will be magnetic after passing through the photosphere. It can be demagnetized and its hardness is HRC≤26. Has good rust and corrosion resistance.
304 stainless steel ball is widely used in the market for a wide range of steel balls, can be used in medical equipment, chemical, aviation, aerospace, plastic hardware: perfume bottles, sprayers, valves, nail polish, motors, switches, electric irons, washing machines, refrigerators , air conditioners, medicines, auto parts, bearings, instruments, bottles.

316 stainless steel is austenitic steel with HRC≤26, which is more suitable for industries with higher anti-corrosion requirements. All performances are better than 304 stainless steel balls. Both 304 stainless steel and 316 stainless steel are food grade stainless steel.
316 stainless steel ball is a relatively high demand product, usually used in special industries such as medical equipment, chemical, aviation, aerospace: perfume bottles, sprayers, valves, nail polish, body accessories, mobile phone boards.

It belongs to the section of nickel-plated steel, austenitic steel, non-magnetic, with low price and excellent performance. It can be processed, welded and drilled with hardness HRC≤28. (Note: The new steel ball reminds you that 201 stainless steel ball can not be used in industries with high anti-rust and anti-corrosion requirements such as seawater or acidic substances).

201 stainless steel ball is widely used in various hardware industries, handicrafts, plastic products, such as lamps, switches, motorcycle parts, luggage, bearings, die-casting parts.


The representative of martensitic steel, commonly known as stainless iron, is magnetic, has good rust resistance, and has a high hardness of HRC50-55.
420 stainless steel balls are commonly used in industries where high precision and rust resistance are required: motorcycle parts, pulleys, stainless steel bearings, plastic bearings, crafts, valves, and petroleum.

Metallographic organization belongs to martensitic steel, and the production process is relatively high. There are few enterprises that can produce stainless steel 440C in China, so enterprises that can produce 440C materials are often praised as special stainless steel. The heat treatment process is relatively complicated, easy to crack, and has high precision requirements. It is a relatively hard stainless steel ball in the steel ball: HRC≧58. 

440C stainless steel balls are commonly used in industries where high precision and rust resistance are required: aviation, aerospace, bearings, motors, high precision instruments, valves, and petroleum
Related Products

Foshan Gaoming District Pinzhan Technology Co., Ltd. mainly produces plastic balls (POM, PP, PA66, ) and stainless steel balls (440C, 304, 316L, 420, 430), and also produces bearing steel balls (GCR15), copper balls, glass balls. flying saucer ball, carbide ball, carbon steel ball and hardware products, complete product specifications, in line with GB308-2002 standard. We can provide you with a variety of steel balls with a precision in the G10-1000 range. A production plant with 20 years of production experience guarantees the quality and quantity of the products.We can provide you with small order quantities and sizes as well as custom patterns.

Look forward to working with you.   

Mobile: +8613129152860

Our Company

                                      Foshan Gaoming District Pinzhan Technology Co., Ltd.

Pinzhan Technology Co., Ltd. has 20 years of production experience and a variety of production equipment, production equipment: injection molding machine, grinding machine, polishing machine, photoelectric detector, etc..Aad ball testing equipment: roundness detection, vibration detection, instrument inspection, surface quality Detection, Rockwell hardness test.

According to the GB308-2002 standard. We can provide you with various plastic balls, steel ball glass balls and ceramic balls of various specifications in G10-1000 series. The products are widely used in aviation, aerospace industry, automobile industry, sprayers, stainless steel bearings, handicrafts, precision instruments and other hardware.

"Pinzhan" implements brand strategy with integrity and quality, and adheres to the management policy of "Quality First, Service Priority, Customer First". The company's products are also exported to Europe, North America, South America and other industries. Asian countries.
"Pinzhan" wish you a thriving business and create a better future with you!

Packing & Delivery

steel ball export carton in wooden case;                      
The carton size:30*20*15CM
Wooden case:90*80*70CM.

Our Certifications
Customer Photo

The content in the picture is the performance of another Ali International Station in our factory. It also proves that our company has sufficient supply capacity and quality assurance to provide you with goods. We hope to cooperate with you and we will provide better quality and delivery guarantee.


Customers please read.

1) Please be noted that the price in our website is merely the reference price and the actual one is subject to our final confirmation!
2) Any problem, requirement and suggestion, please contact us freely, we'd be very pleased to be at your side

Q:Can you provide free sample?

  Yes, we can offer you free sample when we have them in stock and you just need pay the shipping fee.

Q:What's the terms of payment?

Trade Assurance order on Alibaba,Paypal, T/T,Western Union, Credit Card or Cash both available.

Q:How is your Quality Control?
We have a factory in Taian, Shandong, China to guarantee the production of your products. the quality of the products are pass strict inspection before shipping.

Q:What is the lead time?
Balls in stock could be delivered within 3~5 days once confirmed the order. For mass order or customized products,it takes about 10~20 days as per quantity or processing difficulty.

Q:How is the after sales service?
China working hours 8:00-17:30 Monday-Friday online service to deal with the complaint and feedback s from buyers. Our team will help buyers solving problem in time.

Q:How to apply refund?
Once the PI has been confirmed and ordered goods are ready, a refund will not available for a canceled order. But a refund would back to you in time the case that we could not offer the products required in stock due to the shortage or unavailability.

Q:Can I come vist your office and factory?
1) Welcome to visit our office and factory directly before establishing long-term business relationship.
2) We'd like to help you book the hotel and pick you up from the airport, or railway station. Please inform us if you have any schedule in China.