high hardness grinding balls
- Category: >>>
- Supplier: Yuncheng Kangda Steel Ball Co. Ltd
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Product Overview
Description
Product Description
High Hardness AISI 52100 4.0mm-25.4mm Steel Grinding Ball
size:
4mm,4.5mm,4.763mm,5.0mm,5.159mm,5.5mm,grinding ball,
5.556mm,5.953mm,6.0mm,6.35mm,6.747mm,grinding steel ball,
7.0mm......20mm,20.638mm,22mm,22.225mm,23.8125mm,25.4mm chrome steel ball;
Condar steel ball specializing in the production of 16 years,mainly including bearing steel ball,stainless steel ball,carton steel ball ,0.3mm-200mm,G5-G1000,factory direct sales,quality assurance!
Quality assurance:
1.The raw material control: strictly purchase the regular steel factory wire, provide the quality assurance certificate, meet the national standard requirement;
2.The production process: strictly follow the production operation procedure, and implement the 5S management.
3.Quality test check: first by machine, then by manual inspection, the rate of non-conformity is less than one in 10,000.
4.Packing: import antirust oil and seal packaging to ensure the storage is not rust.
Analysis of chemical composition and physical properties of bearing steel ball:
Material specification | C% | Cr% | Mn% | Si% | P% | S% |
0.95-1.1 | 1.3-1.6 | max0.25 | 0.15-0.3 | MAX0.03 | MAX0.025 | |
mechancial properties | tensile strength | yield strength | density | |||
325,000psi | 295,000psi | 0.283lbs/cu in | ||||
size range | 0.3MM-200MM | |||||
hardness | HRC60-66 | |||||
grade | G5-G1000 | |||||
physical property | no corrosion resistance, magnetic | |||||
application | universal for many applications.For example:hardware,electronics,bearing,balls&roller bearings,linear monition,balls lead screws,grinding media; | |||||
material conversion | ASTM/AISI | DIN | YB | JIS | ||
E52100 | 100CR6 | 1.3505 | GCr15 | SJJ2 | ||
Steel ball Grade:
Company Information
Yuncheng Condar steel Co., Ltd
1.Establish in 1998.with 20 years of experience in production and marketing.
2.Possess SGS/ROHS certificate ,guarantee and a brilliant management team.
3.Advanced production equipment and testing equipment.
4.Fixed Assets more than 10 million RMB.
5.Technical personnel with more than 10 years of production experience.
6.National AAAAA level logistics park as our warehouse, Large stock and fast delivery.
7. 40% domestic market sales volume as foundation.
8.High reputation,Accumulated many customers from all over the world.
We sincerely looking forward to establishing partnership with any customers at anytime.
Environmental protection certification:
Custormer Visiting
production process of steel ball:
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
Delivery time: 20 working days after received the deposit.
Package: 1.Commercial packaging: plastic bag + color box + carton + pallet
2.Industrial packaging: a). plastic + iron barrel + pallet;
b). plastic + weaving bag+ wooden carton ;
3.According to the requirement of customer.
FAQ
Q1. What are your terms of packing?
A: Generally,we pack our goods in bulks or woode box,suitable for shipping container.
Q2. What is your terms of payment?
A: T/T 30% as deposit,and 70% before delivery.
We’ll show you the photos of the products and packages before you pay the balance.
Q3. What are your terms of delivery?
A: EXW,FOB,CFR,CIF.
Q4. How about your delivery time?
A: Generally,it will take 10 to 15 days after receiving your advance payment.
Q5. Can you produce according to the samples?
A:Yes,we can produce by your samples or technical drawings.
Q6. What is your sample policy?
A:We can supply the sample if we have ready parts in stock.
Q7. Do you test all your goods before delivery?
A:Yes,we have 100% test before delivery.
Q8. How do you make our business long-term and good relationship?
A1: We keep excellent quality,thoughtful after-sales service and competitive price to ensure our customers’benefit.
A2: We pack our goods in bulks or woode box,suitable for shipping container.
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