High Quality for 15mm Steel Ball - 440 stainless steel balls high quality precision – Mingzhu

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owing to excellent assistance, a variety of front end of range items, aggressive costs and efficient delivery, we take pleasure in a very good standing amongst our shoppers. We've been an energetic corporation with wide market for Auto Parts Bulkbuy , Steel Grinding Media , 440c Stainless Steel Balls , We've been honest and open up. We glance ahead on your pay a visit to and developing trustworthy and long-term standing relationship.
High Quality for 15mm Steel Ball - 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:

High Quality for 15mm Steel Ball - 440 stainless steel balls high quality precision  – Mingzhu detail pictures

High Quality for 15mm Steel Ball - 440 stainless steel balls high quality precision  – Mingzhu detail pictures

High Quality for 15mm Steel Ball - 440 stainless steel balls high quality precision  – Mingzhu detail pictures

High Quality for 15mm Steel Ball - 440 stainless steel balls high quality precision  – Mingzhu detail pictures

High Quality for 15mm Steel Ball - 440 stainless steel balls high quality precision  – Mingzhu detail pictures

High Quality for 15mm Steel Ball - 440 stainless steel balls high quality precision  – Mingzhu detail pictures


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We take pleasure in a really excellent name amongst our shoppers for our exceptional product or service excellent, competitive rate and also the great services for High Quality for 15mm Steel Ball - 440 stainless steel balls high quality precision – Mingzhu , The product will supply to all over the world, such as: Cairo, Mexico, Uruguay, We have customers from more than 20 countries and our reputation has been recognized by our esteemed customers. Never-ending improvement and striving for 0% deficiency are our two main quality policies. Should you need anything, don't hesitate to contact us.
  • The factory workers have rich industry knowledge and operational experience, we learned a lot in working with them,we are extremely grateful that we can encount a good company has excellent wokers.
    5 Stars By Gabrielle from South Korea - 2017.01.11 17:15
    The factory can meet continuously developing economic and market needs, so that their products are widely recognized and trusted, and that's why we chose this company.
    5 Stars By Adelaide from Turkey - 2017.07.28 15:46