86-24-22906679
No. 62-5B1, Xibinhe Road, Shenhe District, Shenyang, Liaoning, China (Mainland)
Materials of valve balls - Cobalt Chrome Alloy
---Excellent wear and corrosion resistance even at high temperature up to 800℃
Chemical compositions and properties (%)
Brand | C | Mn | Si | Cr | Ni | Mo | W | Co | Fe | P | S | Density (g/cm3) | Hardness (HRC) |
TOPS 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 |
Dimensions of valve seats and balls
API Standard Valve Seat &ball
No. | Specifications | Dimensions OD/ID×H (in) | Dimensions D (in) |
1 | VII-106 | 0.793/0.460×0.500 | 0.625 |
2 | VII-125 | 0.918/0.550×0.500 | 0.750 |
3 | VII-150 | 1.168/0.670×0.500 | 0.938 |
4 | VII-175 | 1.388/0.825×0.500 | 1.125 |
5 | VII-200 | 1.478/0.960×0.500 | 1.250 |
6 | VII-225 | 1.720/1.060×0.500 | 1.375 |
7 | VII-250 | 2.010/1.310×0.500 | 1.688 |
8 | VII-375-1 | 3.072/1.700×0.750 | 2.250 |
9 | VII-375-2 | 3.072/1.880×0.750 | 2.250 |
The above specifications can not cover your demands?
No problem. Please let us know what you need. Our design and production capability is capable to provide the custom service.
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Product Features
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.
FAQ
Q1: Are you a manufacturer or a trading company?
A1: We are the manufacturer located in the north of China with 15 years producing experience and 10 years exporting experience.
Q2: What's the material of your valve seats?
A2: It's the CoCrW alloy, which is usually called stellite alloy.
Q3: What's the stellite alloy?
A3: It is a range of cobalt-chromium alloys designed for wear resistance, heat resistance and corrosion resistance.
Q4: What's the lead time of valve seats?
A4: 15-30 days depending on the order quantity. Immediate delivery with standard stocks.
Q5: What's the tolerance and surface finish we can control?
A5: As your demand.
Q6: How do we deliver the seats?
A6: Air or sea way. We are the VIP customer of DHL express, having good discounts.
Q7: MOQ?
A7: 1pc
Q8: Why I choose your company?
A8: We are professional. We are reliable. We are easy communication.
Your feedback is our best honor, please do not hesitate to give us your valuable feedback and we'll prove that we deserve your fully trust.
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Why Choose us?
-Our faith is that the quality and customer's demands are always the first important thing for everyone in our company.
1. 15 years in producing cobalt alloy parts and 10 years exporting experience.
2. Providing professional solutions.
3. Our own R&D team has professional backgroun and excellent innovation ability.
4. Drawing designed ability.
5. Customized producing.
6. Small quantity is acceptable.
7. Quick feedback and good English communication.
For you | ||
We Are | We Have | We Can |
Professional Manufacuturer | Plenty Production Capacity | Produce Parts Meeting Customer’s Demands |
Reputed Global Supplier | 10 years Exporting experience | Easy Communication |
Material Solution Expert | Materials Science Background | Provide Material Choice Solution |
Founded in 2001, Shenyang Top New Materials Co., Ltd. has concentrated to research, development and production of cobalt-base alloys, tungsten-base alloys, nickel-base alloys and metal ceramics for 15 years.
Our products like cobalt-base alloy saw tips, valve balls, valve seats, bushings, rods, chemical fiber blades, hot-extrusion dies, thermocouple protective tubes have been well recognized by over 30 countries and established long term cooperation.
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