Forged Grinding Ball 20mm to 150mm Size

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Product Description:

Specifications of 20mm to 150mm Forged Grinding Ball:


higher hardness,
great toughness,

more dense tissue abrasion lower

Breakage rate is less than or equal to 1%

Chemical Composition of 20mm to 150mm Forged Grinding Ball:

e material

Chemical composition

Diameter of 100 ball hardness (HRC)

C

Si

Mn

S

P

Cr

Ni

Mo

surface

core

45#steel

0.42-0.50

0.17-0.37

0.50-0.80

≤0.04

≤0.04

≤0.25

≤0.25

52-57

20-30

B2

0.65-0.78

0.17-0.37

0.70-1.20

≤0.035

≤0.035

0.55-0.60

55-60

35-40

50Mn

0.48-0.56

0.17-0.37

0.70-1.00

≤0.04

≤0.04

≤0.25

≤0.25

55-60

25-35

60Mn

0.57-0.65

0.17-0.37

0.70-1.00

≤0.04

≤0.04

≤0.25

≤0.25

55-60

25-35

65Mn

0.62-0.70

0.17-0.37

0.90-1.20

≤0.04

≤0.04

≤0.25

≤0.25

55-60

25-35

40Cr

0.37-0.45

0.20-0.40

0.50-0.80

≤0.035

≤0.035

0.80-1.10

55-60

25-35

B3

0.60-0.65

0.17-0.40

0.70-1.00

≤0.035

≤0.035

0.70-1.20

55-60

52-57

B6

0.77-0.85

0.17-0.37

0.70-1.00

≤0.035

≤0.035

0.88-0.98

55-60

55-60

42CrMo

0.38-0.45

0.20-0.40

0.50-0.80

≤0.035

≤0.035

0.90-1.20

0.15-0.25

55-60

25-35

Specification of 20mm to 150mm Forged Grinding Ball:

1. Diameter: 20mm-150mm
2. Grade: 22Cr, 17Cr, 15Cr, 11Cr, 5Cr, 1.5Cr, etc
3. Chemical composition: C, Si, Mn, Cr, P, S, Mo, Cu, Ni, etc
4. Surface treatment: burnt sand & smooth.
5. It is free from hard spot, visible injurious defects such as blow hole,porosity, shrinkage, cracks, cold-shuts.

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Q:How to cast iron and wrought iron collocation
2, listen: Pig beating sound boring, wrought iron beating sound loud.
Q:What reason is the bronze statue choking fire?
The casting process in boiling phenomenon, is the setting of the exhaust hole positioner position or number is not reasonable, the air cavity can not be discharged, overwhelmed by a material inlet, reflux, change mould, sincerely help you look forward to adopt,
Q:What's the effect of casting copper?
In general cast iron, the mass fraction of copper below 3% - 3.5% can increase the hardness; but when the cast iron has a tendency to chill, or when there is a hard point of free carbides, the addition of copper decreases the hardness.Copper can be used to improve the wear resistance, abrasion resistance, and shock absorption of cast iron, so it is often used in the manufacture of sliding friction iron castings, such as drilling machine spindle, automobile and tractor, valve tappet, etc.. But in white cast iron or chilled cast iron, adding copper does not make any improvement in its abrasion resistance.Copper for certain heat resistant cast iron and austenitic cast iron can increase the heat resistance and corrosion resistance, copper - chromium composite alloy to prevent oxidation under high temperature in the atmosphere from the skin effect is particularly effective, heat resistance and corrosion resistance of austenitic cast iron containing many mass fraction of 4% ~ 7% copper.
Q:Domestic large steel castings factory which is better, recommend!
Do the casting manufacturer of large steel castings, Hunan Jinsha heavy industry science and technology limited company, heard that their professional only more than 1 tons of steel castings, anyway, 150T just big, the company won a lot of foundry industry patents should be good. At least spend money on research and development, then the quality should be all right.
Q:Does anyone know how to make precise casting parts for aerospace or manufacturers of single and small quantities of automotive parts and components, mainly in Beijing, Tianjin and Tangshan?
List of China's military enterprises list of ten major military groupsChina Nuclear Industry Construction Group CorporationChina Aerospace Science and Technology CorporationChina Aerospace Science and Engineering CorporationChina Aviation Industry CorporationChina Aviation Industry Corporation IiChina State Shipbuilding CorporationcsicChina North Industries Group CorporationChina South Industries Group CorporationChina National Nuclear CorporationKey military enterprisesShipbuilding industry:China State Shipbuilding Corporation (South ship group), (China Shipping Group)China Shipbuilding Industry Corp (North Ship group), (China Shipbuilding Industry)Guangzhou Shipyard International Limited by Share Ltd (GSI)Jiangnan Heavy Industry Limited by Share Ltd (Jiangnan Heavy Industry)Nuclear industry:China National Nuclear Corporation (CNNC)China Nuclear Industry Construction Group Corporation
Q:Casting parts in rocker arm drilling, reaming, roughness, block.
The finish of reaming depends on the material and the sharpness of the reamer, as well as the speed and speed of the top and bottom. Marine machine tool
Q:Is 316 casting better than 304 casting?
It is comprehensive. There is no simple comparison of the material to determine the degree of difficulty in processing
Q:We are small castings, the need for surface treatment of shot blasting machine, about how much?
The choice of shot blasting machine, this is according to the workpiece size, yield, whether can collision, and the working time and other factors considered, while the price of different blasting machine are not the same, but the vast majority of small castings used crawler shot blasting machine, according to the comprehensive consideration of factors such as yield, size of workpiece commonly used on the market the crawler shot blasting machine has Q324, Q326, Q328, Q3210, and each time the amount of their treatment were 125KG, 200KG, 400KG, 600KG, the specific use of what types also need to be determined according to the actual situation
Q:In theory, which is more expensive, forging parts or casting parts?
It depends on the structure. In theory, the shape of the forging is relatively simple, but the requirement of internal structure is relatively high
Q:How to calculate the price of casting parts?
According to the complexity of the workpiece, material and casting requirements and process yield

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