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DATA SHEET

Material:                                                Elkanite 100W

Nominal Composition:                          100% Tungsten

 

TYPICAL PROPERTIES

 Density:                                                19.3gm/cc

 Hardness:                                             115-117 Rockwell 'B'

                                                                (approx 460-500HV)

                                                                (approx 430-460 HB30)

 U.T.S:                                                     800-1300 N/mm2

 Electrical Conductivity:                     Approx 30% I.A.C.S.  

                                                                (17.4 M/Ohm mm2

 Specific Resistivity:                            Approx 5.561 microhm cm

 Thermal Conductivity:                        129 W/mK

 

Coefficient of Linear Expansion

(20 – 800 deg C):                                  4.67 x 10-6 in/in/deg C

 

Modulus of elasticity:                410 KN/mm2

Relevant Specifications:            BS 4577 B14

                                                  DIN 44759 B14

                                                  R.W.M.A. Class 13

                                                  150.5182 B14

 

Elkanite 100W is normally used as a tip or facing on a water cooled copper alloy backing electrode when resistance welding copper based materials. It does not alloy appreciably with nonferrous metals and is particularly used as an electrode in resistance brazing and soldering, and for some hot rivetting/electrical upsetting operations.

Elkanite 100W is extremely hard and has relatively poor ductility below 300 degs C which makes it extremely difficult to machine. It may be ground to shape, but care must be taken to avoid cracking of the material due to frictional heat and local thermal expansion.

Associated Data sheets:    Elkanite 100W Health and Safety ( 1300 : 134 ) and Elkanite 100W recommended machining conditions ( 1300 : 112 )

 

All Mallory Alloys Group products conform to, if not exceed, the relevant standards as assured by the Quality Management System Quality Management System - ISO 9002, EN 29002, BS5750-2


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