Cemented Carbide Valve Seat with High Hardness, Good Wear Resistance, Compressive Strength and Mechanical Properties

• Customized: Customized
• Certification: ISO
• Standard Parts: Yes
• Universal: Yes
• Type: Bearing Balls
• Material: Carbon Steel
• Model NO.: Yg6 Yg10 Yg6X Yg10X
• Surface: Ground or Unground
• Color: Gray
• Transport Package: Box Inside and Carton Outside
• Specification: diameter 0.3-80mm
• Trademark: EG carbide or OEM
• Origin: China
• HS Code: 8209009000
• Production Capacity: 5 Tons / Month

Product Description

Material grade

 

 

Cobalt Binder notes

Grade	Carpeta (wt %)	Density (g/cm^3)	Hardness (HRA)	TRS (> = N/mm²)
YG6	6	14,8	90,0	1520
YG6X	6	14,9	91,0	1450
YG6A	6	14,9	92,0	1540
YG8	8	14,7	89,5	1750
YG12	12	14,2	88,0	1810
YG15	15	14,0	87,0	2050
YG20	20	13,5	85,5	2450
YG25	25	12,1	84,0	2550

 

Nickel Binder notes

Grade	Binder (Wt %)	Density (g/cm^3)	Hardness (HRA)	TRS (> = N/mm²)
YN6	6	14,7	89,5	1460
YN6X	6	14,8	90,5	1400
YN6A	6	14,8	91,0	1480
YN8	8	14,6	88,5	1710

Product Description

 

Cemented Carbide Valve Seat with High Hardness, Good Wear Resistance, Compressive Strength and Mechanical Properties

The valve seat is a detachable face part in the valve to support the fully closed position of the spool and form a sealing pair. General valve seat diameter is the maximum flow diameter of the valve. Such as butterfly valve seat material is very broad, all kinds of rubber, plastic, metal materials can be used as the seat material, use elastic sealing material and small thrust actuator for bubble tight seal, seating compression stress make the elastic deformation and packed into with rough surface of metal parts, in order to block all the leak path. The permeability of the material is the basis for a small amount of leakage to the fluid.

Ball Sizes for choosing
 

common sintered balls diameters (mm)
0.4	0.5	0.8	1.0	2.0	3.0	4.0	5.0
6.0	7.0	8.0	9.0	10.0	11.0	12.0	13.0
14.0	15.0	16.0	17.0	18.0	19.0	20.0	21.0
22.0	23.0	24.0	25.0	26.0	27.0	28.0	29.0
30.0	31.0	32.0	35.0	36.0	37.0	38.0	39.0
40.0	41.0	42.826	45.0	50.0	52.0	55.0	60.0
62.0	65.0	70.0	75.0	80.0	90.0
we have more than 100 kinds of diameter for your choose,other diameters pls chat with sellers.

Valve pairs sizes for choosing

	VII-106	VII-125	VII-150	VII-175	VII-200	VII-225	VII-250	VII-375
Ball diameter	0.625"(15.88)	0.750"(19.05)	0.938"(23.83)	1.125"(28.58)	1.250"(31.75)	1.375"(34.93)	1.688"(42.88)	2.250"(57.15)
Saddle height	0.500"(12.70)	0.500"(12.70)	0.500"(12.70)	0.500"(12.70)	0.500"(12.70)	0.500"(12.70)	0.500"(12.70)	0.750"(19.05)
outer diameter	0.793"(20.14)	0.918"(23.32)	1.168"(29.67)	1.388"(35.26)	1.478"(37.54)	1.720"(43.69)	2.010"(51.05)	3.072"(78.03)
inner diameter	0.460"(11.68)	0.550"(13.97)	0.670"(17.02)	0.825"(20.96)	0.960"(24.38)	1.060"(26.92)	1.310"(33.27)	1.700"(43.18)/           1.880"(47.75)

The material properties of soft seat should be considered

1) Fluid compatibility, including expansion, hardness loss, permeability, degradation;

2) hardness;

3) Permanent deformation;

4) Degree of recovery after load elimination;

5) Tensile strength and compression strength;

6) Deformation before fracture;

7) Elastic modulus.

Compared with other material, cemented carbide high hardness, good wear resistance, compressive strength and mechanical properties, therefore, widely used for chemical etching, the working conditions of easy oxidation, for all kinds of solution, requirements of stable atmosphere corrosion resistance and oxidation resistance, for the development of all kinds of corrosion resistance, oxidation resistance of hard alloy and hard alloy material applied in various fields, The corrosion of cemented carbide on various acids is mainly the selective dissolution of the bonding phase, so in order to improve the corrosion resistance, Wc-ni alloy with Co bonding phase replaced by Ni, WC-Cr3C2-MO2C-Ni alloy with Cr3C2 or Mo2C, WC-Ti (C, N) or WC-Ti (C, N) TaC non-bonding phase cemented carbides (also known as anti-oxidation carbides) with less than 1.5% bonding phase are widely used Excellent Cr3C2-Ni alloy with Cr3C2 as main component

Specifications

the unground ball is suitable for milling all kinds materials;

the grinding and polishing ball is suitble for precision punching member stretched, precision bearings,instruments,meters,Pen, spraying machines,pumps,machinery parts,valve seals,brake pump,squeeze-hole punch, oil,hydrochloric acid laboratory,hardness measuring instrument,fishing gear,with heavy,ornamented,finished,the high-end industry!

valve pair
Ball: carbide tungsten,
diameter - 0.938 "(23.83 mm),
Saddle (ring): carbide tungsten,
outer diameter - 1,168 "(29.67 mm),
internal diameter - 0.67 "(17.02 mm),
saddle height 0.5 "(12.7 mm).

• Ever green started in 1998 is a leading manufacturer of Hardmetal tool factory in China. We supply the widest range of grinding media (forged & cast grinding ball, grinding rod and grinding cylpebs) to industries involved in milling and comminution: mines, cement, coal power stations and chemical industry.
• Ever green`s Ball Factory has a production capacity of above 10,000 tons of grinding media ranging from 20mm-150mm. We have been specializing in the development, manufacture, marketing and after-sales service of grinding balls.
• To meet their customers' needs, we research, design, manufacture and distribute grinding media with high hardness, good wear resistance and low breakage rate. Our products are mainly exported to South America, South Africa, Middle East, Eastern Europe, America, Australia and Southeast Asia, such as Chile, Ghana, Iran,Italy,Noway, Austria, Canada and Indonesia.
• As a professional manufacturer, We has obtained ISO System Authentication. We have been serious for our production and quality control. What's more, we can offer SGS, TUV and other professional test reports from 3rd party lab.

Our Advantages

Our Advantages:

1:High strength, high wear resistance, high precision, high temperature resistant, corrosion resistant.

2:They are mainly used for the sealing of valves of oil pumps in petroleum industry's sand containing wells, viscous oil wells, sea oil wells and high pressure sulfur resistant oil wells, etc.

3 They are used with compatible cemented carbide valve seats. The surface finish, tolerance class and tolerances of dimensions have respectively reached the standards of the machine industry: G5, G10, G16, G40 and G100 of JB/T 9145-1999.

4:Precision machined cemented carbide balls of other grades and specifications are also available based on customers' demands.

5:Compatible high precision valve seats can also be made available.

Product Description

YG6 YG8 tungsten carbide ball for valve pair & oil industry

Product Description
1: Diameter: Ø0.3~ø100mm
2: Application :Tungsten carbide ball is very wide, such as: precision parts punching and drawing, precision bearing, instrument, instrument, pen making, spraying machine, water pump, mechanical fittings, sealing valve, brake pump, punching hole, oil field. Hydrochloric acid laboratory, hardness measuring instrument, fishing gear, counterweight, decoration, finishing and other high-end industries

 

Product name	Tungsten carbide balls
Series	YG6 YG8 YN6 YN8
Feature	Large hard Tungsten Carbide ball has high hardness, wear resistance, corrosion resistance, bending resistance, and bad use environment, and can replace all steel ball products. Carbide ball hardness ≥ 90.5, density = 14.9g/cm3.
Density	14.9g/cm3
Product process line	The production process of cemented carbide ball is similar to that of other cemented carbide products, mainly including powder preparation → recipe according to application → wet grinding → mixing → crushing → drying → sieving → adding molding agent → drying → sieving Prepared mix → granulation → cold isostatic pressing → forming → sintering → forming (blank) →grinding → packaging → storage. According to the specific application requirements and related parameters, there are carbide alloy ball, tungsten steel ball, tungsten ball, high-density alloy ball and other carbide ball products. The smallest carbide ball can do about 0.3 in diameter.

Product Parameters

Various Size of Aseeder tungsten carbide balls in many types of tungsten carbide grade are available

Grade	Density ( g/cm3)	Hardness ( HRA)	T.R.S(MPa)	Grain size ( μm)	Composition ( % )	Equal to ISO
YG8	14.65~14.85	≥89.5	≥2320	1.2~2.0	8%CO 92%WC	K20
YG6	14.85~15.05	≥90.0	≥2150	1.2~2.0	6%CO 94%WC	K10

Dia.(mm)	Dia.(inch)	Dia.(mm)	Dia.(inch)
2	3/38	8	23/73
2.38125	3/32	9.525	3/8
2.5	6/61	10	37/94
3	2/17	11.1125	7/16
3.175	1/8	12	43/91
3.969	5/32	12.7	1/2
4	3/19	13.494	17/32
4.7625	3/16	14	43/78
5	12/61	14.2875	9/16
5.556	7/32	15	13/22
6	13/55	15.875	5/8
6.35	1/4	16	17/27
7	8/29	19.05	3/4
7.938	5/16	20	37/47

Tolerances: AFBMA Ball Tolerances Table
Grade	Sphericity in inches	Sphericity in mm	Basic Diameter Tolerance in inches	Basic Diameter 2 in mm	Maximun Surface Roughness
G3	0.000003"	0.0000762mm	+/-0.00003"	+/-0.000762mm	0.5
G5	0.000005"	0.000127mm	+/-0.00005"	+/-0.00127mm	0.8
G10	0.000010"	0.000254mm	+/-0.0001"	+/-0.00254mm	1
G25	0.000025"	0.000635mm	+/-0.0001"	+/-0.00254mm	2
G50	0.000050"	0.00127mm	+/-0.0002"	+/-0.00508mm	3
G100	0.0001"	0.00254mm	+/-0.0005"	+/-0.0127mm	5
G200	0.0002"	0.00508mm	+/-0.001"	+/-0.0254mm	8
G500	0.0005"	0.0127mm	+/-0.002"	+/-0.0508mm
G1000	0.001"	0.0254mm	+/-0.005"	+/-0.127mm

Packaging & Shipping

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Welcome to contact me:
 

We look forward to the business of being of service of you.

Hope to hear from you soon.

[phone]

Kate Caiz

Evergreen Hardmetal tools co.,Ltd