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Cobalt Chrome Alloy Valve Seat Inserts Corrosition Resistance

Cobalt Chrome Alloy Valve Seat Inserts Corrosition Resistance

  • Cobalt Chrome Alloy Valve Seat Inserts Corrosition Resistance
  • Cobalt Chrome Alloy Valve Seat Inserts Corrosition Resistance
Cobalt Chrome Alloy Valve Seat Inserts Corrosition Resistance
Product Details:
Place of Origin: Liaoning ,China
Brand Name: SYTOP
Certification: ISO9001
Model Number: TP014
Payment & Shipping Terms:
Minimum Order Quantity: 10 pcs
Price: USD 6/PC
Packaging Details: foam sheet inside , wooden case outside and pallet for export
Delivery Time: 20-30 Working days
Payment Terms: L/C, T/T, Western Union, MoneyGram
Supply Ability: 5000PCS/MONTH
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Detailed Product Description
Material: Cobalt Chrome Alloy Properties: Wear And Corrosition Resistance
Density: 8.4g/cm3 Hardness: 38-44HRC
Chemical Composition: CoCr W Color: Silver And Grey
Specification: Upon The Drawing
High Light:

pump spare parts


fisher control valve parts



Stellite valve seat inserts are very important parts of oil-well pump , they always show up together and cooperate very good , no better material can replace them now .


What is the Details?


Material : Cobalt Chrome Alloy
Process : Casting
Hardness: 38-44HRC
Density : 8.4 g/cm ³
Properties : Wear and corrosion resistance
Application : Oil well pump components , wear and corrosion resistance parts
Instructions : API standard , Drawing made upon customers request
Tolerance control : turning or grinding surface , tolerance upon drawing
Production lead time normal order 30 days



Chemical compositions and properties (%)


Brand C Mn Si Cr Ni Mo W Co Fe P S





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 8.4 38-44


Dimensions of our valve seats


API Valve Seat insert Standard


No. SPECIFICAIONS OD (inch”) ID (inch”) HEIGHT (inch”)
1 1-1/4” .800” .940” 1.002”
2 1-1/2” .980” 1.169” 1.229”
3 1-3/4” 1.175” 1.389” 1.489”
4 2” 1.285” 1.616” 1.747”
5 2-1/4” 1.410” 1.720” 1.890”
6 2-3/4” 1.754” 2.175” 2.190”
7 3-1/4” 2.040” 2.687” 2.375”
8 3-3/4” 2.290” 3.247” 2.620”



Note: The unit weight is only for reference. The actual weight might have some variations.




Cobalt Chrome Alloy Valve Seat Inserts Corrosition Resistance 0



Advantages of our valve seat and ball


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 andavoiding the troubles caused by casting defects.


About us


Shenyang Top New Material Co., Ltd owns its advantages in the industrial metal materials area. The company specializes in the R&D, manufacturing and sales of investment casting and powder metallurgy components made of Cobalt Chrome alloy. Founded in Year 2001, SYTOP has 16 years producing experience and 10 years exporting experience. Our solid quality and integrity wins us a good name in our customers.



Cobalt Chrome Alloy Valve Seat Inserts Corrosition Resistance 1


Package and shipment


Cobalt Chrome Alloy Valve Seat Inserts Corrosition Resistance 2




Q1: What is the Warranty for our products ?
A1: We own 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 on our side occurred in 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 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 single item can't reach the MOQ, the price should be 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 work days, but if not the delivery time would be around 20 work days.
Q5: Can you manufacture Special-shaped products?
A5: Yes, we can. We can produce both standard and special prosucts. We can make them according to your drawings and samples.
Q6: May I have my order working schedule?
A6: Yes, we will send working schedule of your order each week. We will inspect and test all merchandise in case of damaging and missing parts before shipment. The detailed inspection pictures of the order will be sent to you for your confirmation before delivery.



Best Service


1. Drawing made and products design

    Our professional engineer team supply drawing design service .


2. A entire process supervising

    Our sales team will update the whole progress to you .


3. Good English communication and export service .


4. Quickly reply and provide professional solution to your project.


Please do not hesitate to contact us for price or samples . 

Contact Details
Shenyang Top New Material Co.,Ltd

Contact Person: Bella Hu

Tel: 86--13897908592

Send your inquiry directly to us
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