Stainless Steel bead 3mm Silver Plated Beads for decorate Jewelry with medical level 

Product Description

 440 STAINLESS BALLS, GRADE 10

Stainless Steel Balls 440C Grade 100 (0.0625") are widely used for antifriction bearings, valves, locking mechanisms, fasteners, and quick-disconnect couplings. Type 440C stainless steel provides maximum hardness, toughness, and dimensional stability – making these precision balls highly resistant to rolling-contact fatigue. Stainless 440C precision balls are used in a hardened condition, perform similarly to tool steels, and are ideal for antifriction bearings (rolling bearings).

AISI 440-C
SIZE RANGE		0.30mm (.012") up to 2-1/2"
GRADES		3, 25, 50, 100, 200, 500, 1000, 2000
CHEMICAL COMPOSTION
CHROMIUM		16%-18%
CARBON		.95%-1.2%
NICKEL
MANGANESE		1% MAX.
SILICON		1% MAX.
PHOSHOROUS		.040 % MAX.
SULPHUR		.03% MAX.
MOLYBDENUM		.75% MAX.
MECHANICAL PROPERTIES
HARDNESS		RC-58 MIN.
TENSILE STRENGTH		285,000 PSI
ELONGATION IN TWO INCHES		2%
REDUCTION IN AREA		55%-70%
MODULUS OF ELASTICITY		29,000,000 PSI
DENSITY		.277 LBS./CU.IN.
PHYSICAL CHARACTERISTICS
CORROSION RESISTANCE		FAIR
MAGNETIC		YES

product details

Product Name	Stainless steel ball 440C(9Cr18Mo)	Stainless steel ball 420(3Cr13)	Stainless steel ball 304(Ocr19Ni9)	Stainless steel ball 316L(Ocr19Ni12MO2)	Stainless steel ball 201
Material	Stainless steel ball	Stainless steel ball	Stainless steel ball	Stainless steel ball	Stainless steel ball
Size	0.3mm-50.8mm	0.3mm-38.1mm	0.5mm-60.0mm	0.5mm-50.8mm	0.8mm-50.8mm
Grade	G10-G500	G10-G500	G100-G1000	G100-G1000	G100-G1000
Hardness	58-60 degree	51-53 degree	Max 28 degree	Max 28 degree	Max 26 degree
rust resistance	good	good	strong	The best anti-rust property	strong
Corrosion resistance	good	good	good	The best corrosion resistance	good
Magnetic	Have magnetic	Have magnetic	Non-magnetic	No magnetic	No magnetic

 

Stainless steel ball 440C

Product Name	Stainless steel ball 440C(9Cr18Mo)
Specification	Φ0.30mm—Φ50.8mm
Grade	G10-G500
Feature	Martensitic steel,high precision,hardness reaches 58-60 degrees,magnetic, good corrosion resistance, rust resistance and wear resistance.
Applications	Bearings, stamping/hydraulic parts,valves,aerospace,seals, refrigeration equipment, high-precision instruments.
Chemical composition	C	Cr	Si	M n	P	S	Mo	Ni
	0.95-1.2	16.0-18.0	1.0	1.00MAX	0.04	0.03	0.75MAX	0.6MAX

Yuncheng Condar Steelball Co., Ltd.is founded in Yuncheng. Shandong province. Weare professional production and sales of steel balls company. We provide all kinds of steel balls with more than10 years, including stainless steel balls, carbon steel balls, bearing steel balls, most kinds of special balls. All of our product can be customized.

 

Our factory has the advanced production equipment and technical strength to ensure high-quality products. The products has been exported to overseas markets, including many other countries.

 

We regard quality as our life, striving for providing better products and service with high cost performance for clients.

 

We wish to enter into business relations with you in the future.

 

Production Process

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

2.FLASHING:
A process that bives a ball blank a rough finish and removes the excess material around the ball.

3.HEAT-TREATING:
Harden the balls by subjicting a metal of alloy to controlled heating and cooling to improve hardness and other properties.

4.HARD GRINDIGN:
Slow and meticulous grinding assures proper sizing and sphencity;

5.LAPPING:
This process has two steps,first is simple lapping,then is fine grinding.Both fo them is to plosh the balls to a shiny finish and to the exact size required by ISO 3290 GRADE.

6.CLEAN:
First clean the surface of balls;then use the dehydrated oil to dry off the balls;the last step is applying antirust oil for the balls.When these steps bave done,each ball will be selected by machine or naked eye to make sure every ball is perfect..

7.Inspection: 
Each batch of products will accept measurement and inspection by the special inspectors.to check whether the products consistent with the customer's requirement.

8.Packing:
The balls are packed in anti-oxidant or liled paper ,in cardboard boxes of standard size with fixed quantities,finally in p alled or wooden cases .Packing will be sea&air worthy.Special packaging can be provided on request.

Packaging & Shipping

1. Carton  packaging                               2. Carton+pallet                                       3. Woven bag

4. woven bag+drum                                 5. Bottled + carton + tray                           6. FIBC

Packing Details  :Carton packaging, woven bag, carton + tray, drum, or according to customer requirements packaging

Delivery Details : 3-5 days after order ,According to the order quantity;

Why Choose Us?

 

1. As a manufacturer and trading company, we are able to get the best resources integrated in China and offer our clients qualified parts at the most competitive price.

2. Quality Assurance: 100% QC inspection before delivery; ISO9001:2008, and SGS certified; Full refund or replacement for quality faulty; 90 days quality warranty for ALL products.

3. Excellent customer service, responded within 24 hours.

4. Fast delivery: we have large amount of stock ready to ship the next day after order, and for bulk production, we can work on urgent order and deliver in time.

5. We provide OEM service and can make custom parts according to clients’ prints or sample pieces.

6. With more than10 year’s experience, we’ve worked with customers worldwide

7. One-Stop service: we can take care of everything from production, shipping, import clearance, door delivery until your order is right there in your hands.

Contact Us

                                 Thanks for your time!

              Any concerns please contact me freely!

                              Tel:+86-189-5390-8528

                      WhatApp:+86-189-5390-8528

                 Mail：cd007@condarsteelball.com