China Factory for 420 Ss Balls - 440 stainless steel balls high quality precision – Mingzhu

Short Description:


Product Detail

Product Tags

Related Video

Feedback (2)

Well-run gear, qualified revenue workforce, and superior after-sales companies; We've been also a unified huge loved ones, anyone persist with the organization benefit unification, determination, tolerance for Stainless Steel Magnetic Balls , 1.4401 Stainless Steel Balls, Stainless Steel Ball , With the development of society and economy, our company will keep a tenet of Focus on trust, quality the first, moreover, we expect to create a glorious future with every customer.
China Factory for 420 Ss Balls - 440 stainless steel balls high quality precision – Mingzhu Detail:

440 stainless steel balls combine the remarkable hardness with the great resistance to corrosion caused by water, steam, air as well as by gasoline, oil and alcohol. High degree of surface finish and very precise size tolerances make this type of stainless steel are the best for the usage in stainless steel high precision ball bearings, valves, ball pens.

Specification

440 stainless steel balls

Diameters

2.0mm – 55.0mm

Grade

G10-G500

Application

ball bearings, oil refinery valves, ball point pens

Hardness

440 stainless steel balls

According to DIN 5401:2002-08

According to ANSI/ABMA Std. 10A-2001

over

up to

all

all

55/60 HRC

55/62 HRC

Equivalence Of Material

440 stainless steel balls

AISI/ASTM(USA)

440B

VDEh (GER)

1.4112

JIS (JAP)

SUS440B

BS (UK)

-

NF (France)

-

ГОСТ(Russia)

-

GB (China)

-

Chemical Composition

440 stainless steel balls

C

0.85% - 0.95%

Si

≤1.00%

Mn

≤1.00%

P

≤0.04%

S

≤0.015%

Cr

17.00% - 19.00%

Mo

0.90% - 1.30%

V

0.07% - 0.12%

Hardness Comparision Chart

1010-low-carbon-steel-balls-8

Our Advantage

● We have been engaged in steel ball production for more than 26 years;

● We offer a great variety of sizes ranged from 3.175mm to 38.1mm. Non-standard sizes and gauges can be manufactured under special request (such as 5.1mm, 5.15mm, 5.2mm, 5.3mm 5.4mm for seat track; 14.0mm for cam shaft and CV joint, etc.);

● We have a wide stock availability. Most of the standard sizes (3.175mm~38.1mm) and gauges (-8~+8) are available, which can be delivered immediately;

● Each batch of balls is inspected by sophisticated machines: roundness tester, roughness tester, metallographic analysis microscope, hardness tester (HRC and HV) to guarantee the quality.

440-stainless-steel-balls-7

FAQ

Q: How do I choose the appropriate stainless steel brand (304(L)/316(L)/420(C)/440(C))? What are the main differences between 300 and 400 series stainless steel balls?
A:  To choose the proper steel brand for stainless steel balls, we should get to know well the properties of each brand and the application of the balls. The most common used stainless steel balls can be divided simply in two groups: 300 series and 400 series.
300 series “austenitic” stainless steel balls contain more chromium and nickel elements and are theoretically non-magnetic (actually are very low-magnetic. Totally non-magnetic require additionally heat treated.). Normally they are produced without the heat treatment process. They have better corrosion resistance than 400 series (in fact, the highest corrosion resistance of the stainless group. Although 300 series balls are all quite resistant, however 316 and 304 balls show different resistance to some substance. For more details, please refer to pages of different stainless steel balls) . They are less brittle, so can be applied also for sealing use. 400 series stainless steel balls contain more carbon, which makes it magnetic and more hardness. They can be easily heat treated like chrome steel balls or carbon steel balls to increase hardness. 400 series stainless steel balls are commonly used for applications that demand water-resistance, strength, hardness and wear resistance.

Q: How is your quality assurance?
A: All produced balls are 100% sorted by the sorting bar and checked by the photoelectric surface defect detector. Before packaging samples balls from the lot are to send for final inspection to check for the roughness, roundness, hardness, variation, crush load and vibration in compliance with the standard. If all requirements are met, a inspection report will be made for the customer. Our sophisticated laboratory is equipped with high precision machines and equipment: Rockwell hardness tester, Vickers hardness tester, crushing load machine, roughness meter, roundness meter, diameter comparator, metallographic microscope, vibration measuring instrument, etc..


Product detail pictures:

China Factory for 420 Ss Balls - 440 stainless steel balls high quality precision  – Mingzhu detail pictures

China Factory for 420 Ss Balls - 440 stainless steel balls high quality precision  – Mingzhu detail pictures

China Factory for 420 Ss Balls - 440 stainless steel balls high quality precision  – Mingzhu detail pictures

China Factory for 420 Ss Balls - 440 stainless steel balls high quality precision  – Mingzhu detail pictures

China Factory for 420 Ss Balls - 440 stainless steel balls high quality precision  – Mingzhu detail pictures

China Factory for 420 Ss Balls - 440 stainless steel balls high quality precision  – Mingzhu detail pictures


Related Product Guide:

Bear Customer 1st, Good quality first in mind, we work closely with our prospects and supply them with efficient and professional services for China Factory for 420 Ss Balls - 440 stainless steel balls high quality precision – Mingzhu , The product will supply to all over the world, such as: Singapore, British, Serbia, Qualified R&D engineer might be there for your consultation service and we will try our to meet your requirements. So you should feel free to contact us for inquiries. You'll be able to send us emails or call us for small business. Also you are able to come to our business by yourself to get further knowing of us. And we are going to surely present you with satisfactory quotation and after-sale service. We're ready to build stable and friendly relations with our merchants. To achieve mutual success, we'll make our efforts to build a solid co-operation and transparent communication work with our companions. Above all, we're here to welcome your inquiries for any of our merchandise and service.
  • Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.
    5 Stars By Zoe from Brisbane - 2018.06.19 10:42
    The customer service staff's answer is very meticulous, important is that the product quality is very good, and packaged carefully, shipped quickly!
    5 Stars By Michelle from Benin - 2018.12.11 14:13