
Cobalt Chrome Alloy valve ball and seat are very important parts of oil-well pump , they always show up together and
cooperate very good , no better material can replace them now .
The valve balls are made of Cobalt Chrome Alloy 20 and Cobalt Chrome Alloy seat are made of Cobalt Chrome Alloy 3 . They are a good team to
resist the wear and corrosion issue in oil and gas pimping process .
What is the Details of our Cobalt Chrome Alloy seat and ball?
Material : | Cobalt Chrome Alloy |
Process : | Powder Metallurgy , it is short for PM |
Hardness: | 53-59HRC |
Density : | 8.6-8.8 g/cm ³ |
Size : | Diameter 11-60 mm |
Properties : | Wear and corrosion resistance, high temperature resistance |
Application : | Oil well pump components , wear and corrosion resistance parts |
Instructions : | Drawing made upon cutomers request |
Usage : | one balls with one valve |
Tolerance control : | turning or grinding surface , tolerance upon drawing |
Production lead time | Samples 10 days , normal order 30 days |
Production capacity : | 40,000pcs one month. |
Package : | carton or wooden case , pallet for export |
Chemical compositions and properties (%)
Brand | C | Mn | Si | Cr | Ni | Mo | W | Co | Fe | P | S | Density (g/cm3) | Hardness (HRC) |
ST 3 | 2.0-2.7 | 1.0 | 1.0 | 29-33 | 3.0 | 11-14 | Bal. | 3.0 | ≤0.03 | ≤0.03 | 8.55 | 51-55 | |
ST 6 | 0.9-1.4 | 1.0 | 1.5 | 27-31 | 3.0 | 1.5 | 3.5-5.5 | Bal. | 3.0 | ≤0.03 | ≤0.03 | 8.35 | 38-44 |
ST 12 | 1.1-1.7 | 1.0 | 1.0 | 28-32 | 3.0 | 7.0-9.5 | Bal. | 3.0 | ≤0.03 | ≤0.03 | 8.40 | 44-49 | |
ST 20 | 2.2-3.0 | 2.0 | 30-34 | 3.0 | 1.0 | 14-18 | Bal. | 3.0 | ≤0.05 | ≤0.05 | 8.65 | 53-59 | |
TanTung G 25 | 2.2-2.8 | 1-3 | 27-32 | 7 | Ta/Nb | 14-19 | Bal. | 2-5 | 8.84 | 57-60 | |||
TanTung G 35 | 3.3-3.8 | 1-3 | 27-32 | 7 | Ta/Nb | 14-19 | Bal. | 2-5 | 8.80 | 60-63 | |||
Triballoy 400 | 0.04 | 2.5-2.7 | 8-10 | 27-29 | Bal. | 55 | |||||||
Triballoy 800 | 0.04 | 3.2-3.6 | 16-18 | 27-29 | Bal. | 58 |
Dimensions of our valve seats
API Valve Seat Standard
No. | Specifications | Dimensions OD/ID×H (in) | Weight (g/pc) |
1 | VII-106 | 0.793/0.460×0.500 | 22.81 |
2 | VII-125 | 0.918/0.550×0.500 | 29.55 |
3 | VII-150 | 1.168/0.670×0.500 | 49.53 |
4 | VII-175 | 1.388/0.825×0.500 | 68.13 |
5 | VII-200 | 1.478/0.960×0.500 | 69.05 |
6 | VII-225 | 1.720/1.060×0.500 | 100.34 |
7 | VII-250 | 2.010/1.310×0.500 | 127.04 |
8 | VII-375-1 | 3.072/1.700×0.750 | 536.94 |
9 | VII-375-2 | 3.072/1.880×0.750 | 484.12 |
Note: The unit weight is only for reference. The actual weight might have some variations.
Product Features
Advantages of our valve seat
1. High temperature resistance
The strength keeps stable up to 800℃ and it can even momentarily used at 1200℃.
2. Wear resistance
Due mainly to the unique inherent characteristics of the hard carbide phase dispersed in a
CoCr alloy matrix, it has exceptional wear and galling resistance.
3. Corrosion resistance
This exellent and lovely property allows this kind of material parts to be used in oil&gas, slurry, acid liquid and any other mediums.
4. Production process
Powder metallurgy pocess, it has better strength than casting parts, better granule structure and avoiding the troubles caused by casting defects.
Related products :
Please contact immdeiately if any request . thank you !
Shenyang Top New Material Co.,Ltd
Founded in 2001, Shenyang Top New Materials Co., Ltd. has concentrated on research, development and production of cobalt-base alloys, silver tungsten alloys and metal ceramics for many years. The company has established good cooperative relations with scientific research institutions such as the Metal Institution of the Chinese Academy of Sciences and Northeastern University and has researched and developed new products.
At the end of 2012, the company made significant technical breakthroughs in producing cobalt-base alloys by a powder metallurgic method after five years of research and development, which vigorously promoted the company's growth. It can produce cobalt-base alloy sawtooth tips, valve balls, valve seats, pipes, rods, welding rod chemical fiber cutters, hot-extrusion dies, thermocouple protective pipes and cobalt-base alloys with multiple shapes. The company has established business relations with numerous domestic and overseas manufacturers, winning customers' wide approval.
Silver-tungsten alloys, which the company produces, feature uniform and compact organization, can completely replace imported products and simultaneously are exported to developed countries of Europe and America.
The company mainly produces precision cast products such as cobalt-base alloys through vacuum or regular pressure precision casting. Its partial products are exported to the countries of Europe and America.