Company | Alloys | Services | Products | Ordering | Contact
Profile Capabilities News Site map
Rolling Bar forging Press forging Forgeable alloys
Waterjet Cutting
Request quote All Alloys - high temperature HASTELLOY alloy X (HX) INCONEL alloy 625 INCONEL alloy 718 INCONEL alloy 601 HAYNES alloy 25 (L605) NITRONIC 60 - corrosion resistant HASTELLOY alloy C-276 MONEL alloy K-500 INCONEL alloy 625 INCOLOY alloy 25-6HN FERRALIUM alloy 255 NITRONIC 60 NITRONIC 50 HAYNES alloy 25 NITRONIC 30 - wear resistant HPA COBALT alloy 6B HPA COBALT alloy 6BH NITRONIC 60 NITRONIC 30
Product Catalog Quick Reference Bar Wire Sheet Plate Fasteners Forgings Corrosion resistant Wear resistant High temperature
Request quote Bar Inventory Plate Inventory Payment
Contact info Request quote Request info Order survey form Quote survey form

Alloys

 
  ^up all alloys corrosion resistant wear resistant high temperature forgeable  
 

HPA COBALT alloy 6BH (Co-Cr-W) (UNS R30016)
Co 60, Cr 28, W 4.50, C 1.15, Si 1.1

High Performance Alloys stocks and produces this grade in the following forms: Bar, sheet, plate and forgings. Request quote on this grade. See our on-line catalog for sizes stocked

Overview

Wear Resistant (Co-Cr-W)
Chemistry of AMS 5894. This material surpasses 6K with better ductility, with the same good hardness.

Cobalt 6BH is the same composition of Cobalt 6B, except the material is hot rolled and then age hardened. The direct age-hardening after hot rolling provides the maximum hardness and wear resistance. The advantages this creates are increased wear life, retained edge characteristics, and increased hardness. These properties are in addition to the galling and seizing resistance of the regular Cobalt 6B.

Cobalt 6BH is known in the industry as a metal that retains its cutting edge. The economic advantages are in its long wear time, less down time, and fewer replacements.

Applications

Steam turbine erosion shields, Chain saw guide bars, High temperature bearings, Furnace fan blades, Valve stems, Food processing equipment, Needle valves, Centrifuge liners, Hot extrusion dies, Forming dies, Nozzles, Extruder screws, & many other Misc. wear surfaces.

Applications for alloy 6BH also include tile making machines, rock crushing rollers and cement and steel mill equipment. Alloy 6BH is well suited for valve parts, pump plungers

Wrought alloy 6BH offers the fatigue resistance and toughness of a hot worked microstructure, with the heat corrosion and wear resistance of cobalt based alloy. High Performance Alloys, Inc. inventories sheet, and plate. Bar is can be produced 1/2" through 2-1/2" diameter. Bar can be supplied in random lengths or cut to order. Sheet and plate are offered as whole plates, can be abrasive cut, or processed further using waterjet services.

Wear resistance data.

Chemistry

Chemical Requirements

Ni

Cr

Mo

Mn

C

Si

Fe

Max

3.0

32.00

1.50

2.0

1.40

2.0

3.0

Min

28.00

0.5

0.90

0.2

Tensile Data

Mechanical Property Requirements

Ultimate Tensile

Yield Strength (0.2% OS)

Elong.

R/A

Hardness

Min

130 KSi

70 KSi

Rc 40

Max

Min

896 KSi

483 MPa

Max

Specifications

UNS R30016

Bar

AMS 5894

Wire

Sheet

AMS 5894

Plate

AMS 5894

Fitting

 

Forging

 

Weld Wire

 

Weld Electrode

 

Machining

Alloy 6BH is generally machined with tungsten-carbide tooling, and will produce a finish of about 200-300 RMS. Carbide inserts are used with a 5-degree (0.9 rad.) negative tool holder and a 30-degree (0.52 rad.) or 45-degree (0.79 rad.) lead angle. Tools for facing or boring are essentially the same except for greater clearances where needed. For best results in drilling, the drill web should be kept thin. Screw machine length, carbide tipped drills should be used. In reaming, a 45-degree (0.79 rad.) cutting lead angle should be used. High speed taps are not recommended for Alloy 6BH but threads can be produced by EDM techniques. For better surface finish, this alloy should be ground.

6BH is ground to obtain close tolerances with excellent finish properties. Do not quench dry ground material, as may cause surface imperfections.

 

 

 
 
   
 
©2007 High Performance Alloys, Inc. Reproduction of this site in whole or part is prohibited without the expressed permission of High Performance Alloys.
ISO 9001:2008 Registered Manufacturer & Distributor. Please read our product Disclaimer and Terms & Conditions
Share |