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 .
Material Choose Typical Application Process
Stellite 6 /Steam and chemical valve seat , oil and gas pump
sleeve, ,butterfly valve bushing ,hot-dip galvanized production
line used bushing etc. investment casting
Stellite 3 / Pump sleeve ,rotary ring , valve seats
Stellite 12 / Extrusion die , hot impact die and saw teeth
Stellite 100 / Extrusion die , hot-impact die and saw teeth
Stellite 20 / Pump sleeves , rotary rings , bearing sleeves , valve
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 (%)
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
CNC, lathing, drilling, milling, grinding, wire cutting, polishing
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 :
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
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
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
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 !!!