Description
High Precision Cobalt Base Valve Ball Seat
Stellite 20 Cobalt Based Alloy Valve seats are made from hard alloy that can withstand various types of abrasion
and corrosion as well as high temperature oxidation.The cobalt-base alloy was invented by American Elwood Hayness in 1907.
The Stellite alloy has major component of cobalt, containing a considerable amount of nickel, chromium,
tungsten and a small amount of molybdenum, niobium, tantalum, titanium, lanthanum, etc..Occasionally it contains an alloy of iron.
According to the composition of the alloy, they can be made into wire, powder for hard surface surfacing, thermal spraying,
spray welding,etc.. It also can be made into cast forging parts and powder metallurgy parts.
We produce Stellite 20 Cobalt Base Valve Ball Seat with centrifugal cast process, investment process and metallurgical powder process.
Cobalt Base Valve Ball Seat Special Features:
1.Good surface finishValve Seat
2.We use Precision Cast Process to produce the Co alloy parts;
3.We do heat treatment to achieve better wear performance.
Our Photos for Cobalt Base Valve Ball Seat:
Table 1 :
| Co | Cr | C | W | Mo | Ni | Si | B | Fe | Mn | Others | |
| STELLITE 1 | BAL | 33 | 2.45 | 13 | – | 2.5* | 1 | – | 2.5* | 1 | – |
| STELLITE 3 | BAL | 31 | 2.5 | 13 | – | 2.5* | 1 | – | 2.5* | 1 | – |
| STELLITE 4 | BAL | 31.5 | 1 | 14 | – | 2.0* | 1 | – | 2.0* | 1 | – |
| STELLITE 6 | BAL | 28 | 1.2 | 5 | – | 3.0* | 1 | – | 2.5* | 1 | – |
| STELLITE 12 | BAL | 29 | 1.85 | 9 | – | 2.5* | 1 | – | 2.5* | 1 | – |
| STELLITE 20 | BAL | 33 | 2.45 | 17.5 | – | 2.5* | 1 | – | 2.5* | 1 | – |
| STELLITE 21 | BAL | 27 | 0.25 | – | 5.5 | 2.5* | 1 | – | 3.0* | 1 | – |
| STELLITE 31 | BAL | 26 | 0.5 | 7.5 | – | 10.5 | 1 | – | 2.0* | 1 | – |
| STELLITE 190 | BAL | 26 | 3.3 | 14 | – | 1.0 | 1 | – | 8.0 | 0.5 | – |
| STELLITE 238 | BAL | 26 | 0.1 | – | 3 | – | 1 | – | 20.0 | 1 | – |
| STELLITE 306 | BAL | 25 | 0.4 | 2 | – | 6.0 | 1 | – | 4.0* | 1 | Nb=5 |
| STELLITE 694 | BAL | 28 | 1 | 19 | – | 5.0 | 1 | – | 2.5* | 1 | V=1 |
| STELLITE F | BAL | 25.5 | 1.75 | 12.25 | – | 22.5 | 1 | – | 1.5* | – | – |
| STELLITE SF1 | BAL | 19 | 1.3 | 13 | – | 13 | 3 | 2.5 | 3* | 0.5 | Cu=0.5 |
| STELLITE SF6 | BAL | 19 | 0.7 | 7 | – | 13 | 2.5 | 1.7 | 3* | 0.5 | Cu=0.5 |
| STELLITE SF12 | BAL | 19 | 1 | 9 | – | 13 | 3 | 2 | 3* | 0.5 | Cu=0.5 |
| STELLITE SF20 | BAL | 19 | 1.5 | 15 | – | 13 | 3 | 3 | 2* | 0.5 | Cu=0.5 |
| TRIBALOYT400 | BAL | 8 | 0.1* | – | 28 | 3* | 2.4 | – | 3* | – | – |
| TRIBALOY T800 | BAL | 17 | 0.1* | – | 28 | 3* | 3.2 | – | 3* | – | – |
| DELORO 15 | – | – | 0.06* | – | – | BAL | 2.0 | 1.05 | 1.5* | 20 | Cu=20 |
| DELORO 22 | – | 0.70 | 0.10 | – | – | BAL | 2.3 | 1.75 | – | – | – |
| DELORO 40 | – | 7.0 | 0.10 | – | – | BAL | 3.5 | 2.25 | – | – | – |
| DELORO 50 | – | 10.25 | 0.45 | – | – | BAL | 4.0 | 1.85 | 4.0 | – | – |
| DELORO 60 | – | 14.25 | 0.6 | – | – | BAL | 2.0 | 3.5 | 4.0 | – | – |
| DELORO 625 | – | 22 | 0.1 | – | 9 | BAL | – | – | 5 | – | – |
| NISTELLE C | – | 16.5 | 0.12* | 4.5 | 17 | BAL | 0.7 | – | 6.0 | – | – |
| TRIBALOY T700 | – | 15 | 0.10* | – | 32 | BAL | 3.25 | – |
Table 2 : Standard Cobalt Base Valve Ball Seatis as below:
| Hastelloy C22®(UNS N06022)(Max.) | ||||||||||||
| C | MN | P | S | Si | Cr | Ni | Mo | CO | Fe | W | V | |
| 0.015 | 0.5 | 0.02 | 0.02 | 0.08 | 20.0-22.5 | Bal. | 12.5-14.5 | 2.5 | 2.0-6.0 | 2.5-3.5 | 0.35 | |
| Hastelloy C276®(UNS N10276)(Max.) | ||||||||||||
| C | MN | P | S | Si | Cr | Ni | Mo | CO | Fe | W | V | |
| 0.01 | 1 | 0.04 | 0.03 | 0.08 | 14.5-16.5 | Bal. | 15.0-17.0 | 2.5 | 4.0-7.0 | 3.0-4.5 | 0.35 | |
| Hastelloyx®(UNS N06002)(Max.) | ||||||||||||
| C | MN | P | S | Si | Cr | Ni | Mo | CO | Fe | W | other | |
| 0.05-0.15 | 1 | 0.04 | 0.03 | 1 | 20.5-23.0 | Bal. | 8.0-10.0 | 0.5-2.5 | 17.0-20.0 | 0.2-1.0 | / | |
| Monel 400®(UNS NO4400) (Max.) | ||||||||||||
| C | MN | S | Si | Ni | Cu | Fe | ||||||
| 0.3 | 2 | 0.024 | 0.5 | 63 min | 28-34 | 2.5 | ||||||
| Monel M400®(UNS NO4400)(Max.) | ||||||||||||
| C | MN | S | Si | Ni | Cu | Fe | ||||||
| 0.3 | 2 | 0.024 | 0.5 | 63-70 | 28-34 | 2.5 | ||||||
| Monel R405®(UNS NO4405)(Max.) | ||||||||||||
| C | MN | S | Si | Ni | Cu | Fe | ||||||
| 0.3 | 2 | 0.025-0.06 | 0.5 | 63.0min | 28-34 | 2.5 | ||||||
| Monel K500®(UNS NO5500)(Max.) | ||||||||||||
| C | MN | S | Si | Ni | Cu | Ti | AI | Fe | ||||
| 0.1 | 2 | 0.01 | 0.5 | 63min | 27-33 | 0.86 | 2.3-3.15 | 2 | ||||
| Inconel 600(UNS NO6600)(Max.) | ||||||||||||
| C | MN | S | Si | Cr | Ni | Cu | Fe | |||||
| 0.15 | 1 | 0.015 | 0.5 | 14-17 | 72 min | 0.5 | 6.0-10.0 | |||||
| Inconel 601(UNS NO6601)(Max.) | ||||||||||||
| C | MN | Si | Cr | Ni | CO | AI | Fe | |||||
| 0.05 | 0.3 | 0.2 | 22.5 | 61.5min | 5 | 1.4 | 14.1 | |||||
| Inconel 718(UNS NO7718)(Max.) | ||||||||||||
| Cr | Ni | Mo | CO | Cb+Ta | Ti | AI | Fe | |||||
| 19 | 52.5min | 3.05 | 5 | 5.13 | 0.9 | 0.5 | 18.5 | |||||
| Chemical Analysis of Incoloy 800® uns(N08800) | ||||||||||||
| C | Cr | Ni | Ti | AI | Fe | Grain | ||||||
| 0.05-0.1 | 19.0-23.0 | 30.0-35.0 | 0.15-0.60 | 0.15-0.60 | 39.5min | 5or coarser | ||||||
| Incoloy800HT® UNS(N08811) | ||||||||||||
| C | Cr | Ni | Ti | AI | Fe | Grain | ||||||
| 0.06-0.10 | 19.0-23.0 | 30.0-35.0 | 0.25-0.60 | 0.25-0.60 | 39.5min | 5or coarser | ||||||
Our Experience
13 Year Experience in Heat-resistant Steel Field
18 Year Expertise in Wear-resistant Material Field
20 Year Customer-made High Quality Castings & Forgings
Trading Terms:
- The nearest seaport is Shanghai port
- The nearest airport is Shanghai Pudong airport
- Payment Terms are L/C,TT,West Union,Paypal
- Payment Condition is 50% before production, 50% before delivery against complete set of inspection report
- Supply Capability is 10,000 tons per year
- Sample Availability is yes
- Sample Time is 15-30 Days
- Packing is Plywood Cases or Steel Crates
- Delivery time is about 45 working days per 20 tons regular castings & forgings
- Service is OEM, ODM or Customized
1. 20-year Foundry Operation Experience.
2. Friendly & High Efficient Technical & Commercial Communication.
3. Professional Export Practices: Exported to +60 Overseas Countries.
