| Customization: | Available |
|---|---|
| Condition: | New |
| Standard: | API Standard or Customized |
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The cobalt alloy valve ball and seat are critical parts of the underground oil-well pump. They always show up together and cooperate well; no better material can replace cobalt alloy.
The valve balls are made of STP 20, and the valve seats are made of STP 3. They are an excellent team to resist the wear and corrosion issue in oil and gas pimping process.
What are the Details of the cobalt alloy seat and ball?
|
Material : |
Cobalt Alloy Grade 3 and 20 |
|
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 customer request |
|
Usage : |
one ball 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 |
Cobalt Alloy 3 Valve Seat Chemical composition
|
Grade |
C |
Mn |
Si |
Cr |
Ni |
Mo |
W |
Co |
Fe |
P |
S |
Density (g/cm3) |
Hardness (HRC) |
|
STP 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 |
|
|
STP 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 |
Q1: What is the Warranty for our products?
A1: We own a high-precision grading machine to control geometry dimensions and apply ultra-fine grain size substrate coated with high-performance coatings to guarantee the lifetime of our products, which can satisfy every working condition. If any quality problems occur during this period, we will take on the shipping cost and replacement.
Q2: Do you provide free samples?
A2: Yes, usually, we provide free samples for testing under the condition of freight paid by the customer.
Q3: What is your minimum order requirement?
A3: We will indicate the MOQ for each item in the quotation sheet. We accept the sample and trial order. If the quantity of a single item can't reach the MOQ, the price should be the sample price.
Q4: What is the delivery time of your products?
A4: It depends on the inventory availability. If items needed are in stock, the delivery time would be within 8 workdays, but if not, the delivery time would be around 20 workdays.
Q5: Can you manufacture Special-shaped products?
A5: Yes, we can. We can produce both standard and unique products. We can make them according to your drawings and samples.
Q6: May I have my order working schedule?
A6: Yes, we will send the working schedule of your order each week. We will inspect and test all merchandise in case of damaging and missing parts before shipment. Pictures of the detailed inspection of the order will be sent to you for your confirmation before delivery.
Your feedback is our best honor, please do not hesitate to give us your valuable feedback and we can let you feel more confident about our company and products.
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