1. Cobalt alloys have higher melting points than nickel (or iron) alloys ,This gives them the ability to absorb stress to a higher absolute temperature .
2. Cobalt alloys give superior hot corrosion resistance to gas turbine atmospheres , this is due to their high chromium content.
3. Cobalt alloys show superior thermal fatigue resistance and weldability over nickel alloys .
Typical application
Material Choose Typical Application Process
ST 6 /Steam and chemical valve seat , oil and gas pump sleeve, ,butterfly valve bushing ,hot-dip galvanized production line used bushing etc. investment casting
ST 3 / Pump sleeve ,rotary ring , valve seats
ST 12 / Extrusion die , hot impact die and saw teeth
ST 100 / Extrusion die , hot-impact die and saw teeth
ST 20 / Pump sleeves , rotary rings , bearing sleeves , valve balls
Other request please contact our sells .
SYTOP cobalt base alloys is a range of cobalt-chromium-tungsten alloys with wear resistance, corrosion and high thermal resistance. It is widely used in oil & gas, machinery, wood cutting, automotive, paper and food processing industry etc.
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-G35 | 3.3-3.8 | 1-3 | | 27-32 | 7 | Ta/Nb | 14-19 | Bal. | 2-5 | | | 8.80 | 60-63 |
| Tribaloy 400 | 0.04 | | 2.5-2.7 | 8-10 | | 27-29 | | Bal. | | | | | 55 |
| Tribaloy 800 | 0.04 | | 3.2-3.6 | 16-18 | | 27-29 | | Bal. | | | | | 58 |
Production process of our thermowell tube
1. Powder metallurgy process
A. Better metallurgical structure, better strength
B. Various types of automatic pressing machines from 3 tons to 630 tons. The ordered profiles can be very flexible.
2. Investment casting process
Different volume of furnaces, the order quantity can be very flexible.
3. Machining
CNC, lathing, drilling, milling, grinding, wire cutting, polishing
Product Features
Production process
Powder metallurgy pocess. It has better strength than casting parts, better granule structure and avoiding the troubles caused by casting defects.
Company activity :
Worldwide market :
FAQ
| Q1: What is the Warranty for the cobalt alloy products ? >>> 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?
>>> Yes, usually we provide free samples for testing under the condition of freight paid by customer. Q3: What is your minimum order requirement? >>> 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?
>>> 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 carbide Special-shaped products?
>>> Yes, we can. We can produce both standard end mills and special tools. We can make them according to your drawings and samples.
Q6: May I have my order working schedule ?
>>> 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.
Send your inquiry details right now !!!
Product Tags:
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High Purity Cobalt Based Alloy Investment Castings Spare Parts For Gas Pump Images
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