AMS 5894 (STELLITE 6B) forging, bar, sheet and plate for aerospace components and parts, etc.

1 PRODUCT

AMS 5894, 60Co-28Cr-4.5W-1.15C (STELLITE^TM 6B) forging, bar, sheet and plate for aerospace components and parts

2 EQUIVALENT DESIGNATION

AMS 5894, 60Co-28Cr-4.5W-1.15C, STELLITE^TM 6B, STELLITE^TM 6K

3 APPLICATION

These products have been used typically for parts requiring wear resistance and minimum galling or seizing tendencies at room and elevated temperatures, but usage is not limited to such applications.

Whether your application involves high-impact pulp agitators, critical directional drilling tools, or aerospace components, Stellite™ 6B can offer superior wear resistance and the mechanical properties needed to withstand the toughest of applications. Stellite™ 6B meets the requirements of Aerospace Material Specification AMS 5894.

Stellite™ 6B used for steam turbine erosion shields to protect the blades of turbines.

In addition to wear resistance, Stellite™ 6B has good resistance to a variety of corrosive media. This combination of properties makes Stellite™ 6B particularly useful in such applications such as food-handling machinery, chemical equipment and others where both wear and corrosion resistance are necessary.

4 CHEMICAL COMPOSITION (wt%):

5 OVERVIEW

Stellite™ 6B

These products have been used typically for parts requiring wear resistance and minimum galling or seizing tendencies at room and elevated temperatures, but usage is not limited to such applications.

Whether your application involves high-impact pulp agitators, critical directional drilling tools, or aerospace components, Stellite™ 6B can offer superior wear resistance and the mechanical properties needed to withstand the toughest of applications. Stellite™ 6B meets the requirements of Aerospace Material Specification AMS 5894. All Stellite™ 6B products are accompanied by full material certifications and are DFARS compliant.

Stellite™ 6B used for steam turbine erosion shields has protected the blades of turbines for over 30 years of continuous service.

In addition to wear resistance, Stellite™ 6B has good resistance to a variety of corrosive media. This combination of properties makes Stellite™ 6B particularly useful in such applications such as food- handling machinery, chemical equipment and others where both wear and corrosion resistance are necessary.

Stellite™ 6K

Stellite™ 6K is excellent for cutting or scraping applications, such as knives or scraper blades.

6 CHARACTERISTICS

6.1 RESIST SEIZING AND GALLING

Stellite™ 6B is resistant to the effects of seizing or galling. In many cases, its low coefficient of friction allows sliding contact with other metals without damage by metal pick-up. Stellite™ 6B has been used in equipment where no lubricants were used because of the nature of the product being handled. Sleeves made of Stellite™ 6B move smoothly, with minimum resistance, even when operating in contact with other metal parts. They have been useful in inaccessible areas where efficient lubrication is impossible. Sleeves and bushings have resisted seizing even when lubricants were diluted by gasoline, cleaning fluids and other liquids that wash out an oil film. They have operated at peak efficiency even when lubricants decomposed under heat or were destroyed by abrasive particles.

6.2 RESIST EROSIVE WEAR

Stellite™ 6B

Parts made of Stellite™ 6B have a long service life, even under constant erosive conditions. This material has outstanding resistance to cavitation-erosion. The wrought structure results in improved abrasion wear resistance comparable to much harder cast materials. Stellite™ 6B used for steam turbine erosion shields has protected the blades of turbines for over 30 years of continuous service.

6.3 EXCELLENT HOT HARDNESS

Stellite™ 6B retains high hardness, even at red heat. Once cooled back to room temperature, it recovers its full original hardness.

6.4 GOOD IMPACT AND THERMAL SHOCK RESISTANCE

Stellite™ 6B combines wear and corrosion resistance with good impact strength and resistance to thermal shock.

The toughness of the wrought alloy depicted by its charpy impact energy goes up almost four fold compared to the cast version.

6.5 RESIST HEAT AND OXIDATION

High temperatures have little effect on the hardness, toughness and dimensional stability of these alloys. They are highly resistant to atmospheric oxidation at ordinary temperatures and have good resistance to oxidation at elevated temperatures.

6.6 CORROSION RESISTANCE

In addition to wear resistance, Stellite™ 6B has good resistance to a variety of corrosive media. This combination of properties makes Stellite™ 6B particularly useful in such applications such as food- handling machinery, chemical equipment and others where both wear and corrosion resistance are necessary.

7 PHYSICAL CONSTANTS

Density: 8.39 g/cm³

Melting Range: 1265 - 1354°C.

8 MECHANICAL PROPERTY

Tensile properties

Shall be shown in Table 2; determined in accordance with ASTM E8/E8M. Bars shall be tested in the longitudinal direction. Sheet and plate shall be tested in the transverse direction. Reduction in area is not applicable to plate or sheet under 0.5 inches (12.7 mm) in nominal thickness.

Covers Stellite™ 6B in the form of sheet and plate up to 25.4 mm thick and round bar up to 88.9 mm diameter.

Hardness

Hardness shall be 33-43 HRC, determined in accordance with ASTM E18.

Average Cavitation Erosion Data

Average Abrasive Wear Data

9 HEAT TREATMENT

Wrought forms of Stellite™ 6B and Stellite™ 6K are supplied in the solution heat-treated condition, unless otherwise specified.

The product shall be solution heat treated by heating to 2250°F ± 25 (1232°C ± 14), holding at heat for a time commensurate with cross-section but not less than 15 minutes, and cooling at a rate equivalent to a still air cool or faster. Pyrometry shall be in accordance with AMS 2750.

10 STANDARD SPECIFICATION

SAE AMS 5894 Cobalt Alloys Bars Sheet and Plate 60Co-28Cr-4.5W-1.15C Solution Heat Treated

AMS2261 Tolerances, Nickel, Nickel Alloy, and Cobalt Alloy Bars, Rods, and Wire

AMS2269 Chemical Check Analysis Limits, Nickel, Nickel Alloys and Cobalt Alloys

AMS2371 Quality Assurance Sampling and Testing, Corrosion and Heat-Resistant Steels and Alloys, Wrought Products and Forging Stock

AMS2750 Pyrometry

AMS2806 Identification, Bars, Wire, Mechanical Tubing, and Extrusions, Carbon and Alloy Steels and Corrosion and Heat-Resistant Steels and Alloys

AMS2807 Identification, Carbon and Low-Alloy Steels, Corrosion and Heat-Resistant Steels and Alloys, Sheet Strip, Plate, and Aircraft Tubing

ASTM A 480/A 480M Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip

ASTM E 8/E 8M Tension Testing of Metallic Materials

ASTM E 18 Rockwell Hardness of Metallic Materials

ASTM E 354 Chemical Analysis of High-Temperature, Electrical, Magnetic, and Other Similar Iron, Nickel and Cobalt Alloys

11 PRODUCTS

Stellite™ 6B and Stellite™ 6K are available in bars, rods, sheets, plates, pipes, rings and fabricated shapes. And components made of these materials to your exact specifications.

Stellite™ 6B Ø 7.9 - 152.4 mm diameter round bar, Thickness=0.79-25.40mm sheet

Stellite™ 6K Ø 7.9 - 152.4 mm diameter round bar, Thickness=1.14-9.53mm flat

12 COMPETITIVE ADVANTAGE

(1) More than 50 years experience of research and develop in high temperature alloy, corrosion resistance alloy, precision alloy, refractory alloy, rare metal and precious metal material and products.
(2) 6 state key laboratories and calibration center.
(3) Patent technologies.

(4) High performance.

13 BUSINESS TERM

With background of more than 50 years of material R&D experience, CMMC is a high-tech enterprise specialized in production of high temperature alloys, corrosion resistant alloys, precision alloys, wear resistant alloys, refractory alloys and other special alloys.

With main smelting equipments by CONSARC, including vacuum induction melting furnace (VIM 3 metric tons x 1 set), inert gas protective electric slag remelting furnace (IG-ESR 5 metric tons x 1 set, 10 metric tons x 2 sets), vacuum arc remelting furnace (VAR 10 metric tons x 1 set), CMMC has an annual production capacity of 3000 metric tons.

Established in 2016, CMMC stll having an investing plan of more than 30 million U.S.Dollars in the coming 5 years. CMMC aspires to become an internationally renowned supplier and leading brand of key materials for core components of high-end equipments in the application fields of aerospace, clean energy, petroleum, chemical engineering, medical, marine engineering, food and automobile, etc.

Our main products include forgings, bars, rods, tubulars, plates, sheets, strips, wire rods, precision wires, etc.

From ultra-pure smelting,  hot and cold forming, heat treatment, mechanical processing to finish machining, CMMC provides the whole process of one-stop professional services.

From demand idea to research and development, from technology innovation to promoting of products upgrading, from customer's puzzles and difficulties to final solution, from smelting to market, no matter wherever, whenever, whatever and however, CMMC always try to provide satisfactory one-stop service.

By providing better materials to make a better world, CMMC never give up the dream.