Introduction

COMMONLY STOCKED Beryllium Copper

Mead Metals carries alloy 172 beryllium copper in annealed, quarter-hard, and half-hard tempers from 0.003 to 0.060. Full-hard and mill-hardened tempers are stocked on a limited basis. 17410, 17460, and 17510 are also obtainable.

Beryllium copper combines high strength with non-magnetic and non-sparking qualities. It has excellent metalworking, forming, and machining qualities. It has many specialized applications in tools for hazardous environments, musical instruments, precision measurement devices, bullets, and aerospace. Available in small-order quantities, especially for engineering, die trials, and short runs.

BERYLLIUM COPPER VALUE-ADD SERVICES

Mead Metals offers a number of services to add to our alloy 172 beryllium copper products. We can save you time and money in your production process with our value-add services:

  • Precision slitting from .250" to 12.000"
  • Edge-roll
  • Cut-to-length
  • De-burr
1140x560_0002_Berrylium

Product Specification

Beryllium Copper Product Specifications

Our beryllium copper meets ASTM B194 specifications and is ideal for an array of applications. Beryllium copper, commonly referred to as BeCu and Alloy 25, exhibits superb electrical and thermal conductivity.

It is extremely ductile, and as such can be stamped into complex shapes with tight tolerances. It offers good corrosion and oxidation resistance, and is an excellent choice for:

  • Electronic connector contacts
  • Telecommunications products
  • Small springs
  • Computer components
  • Other non-sparking applications

Beryllium Copper
PHYSICAL & CHEMICAL PROPERTIES

Beryllium Copper Physical Properties 25 C17200

 

      Yield Strength  

108 cycles

ksi

 Hardness     
Temper Heat Treatment  Tensile Strength ksi  0.2% offset ksi  Elongation %

Fatigue Strength

 Diamond Pyramid  Rockwell B or C Rockwell Superficial Electrical Conductivity % IACS 
A Dead Soft (TB00) -- 60-76 28-36 35-65 30-35 90-144 B45-78 30T46-67 15-19
A Planished (TB00) -- 60-78 30-55 35-60 30-35 90-144  B45-78  30T46-67 15-19
1/4 H (TD01) -- 75-88 60-80 20-45 31-36 121-185  B68-90  30T62-75 15-19 
1/2 H(TD02) -- 85-100 75-95 12-30 32-38 176-216  B88-96  30T74-79 15-19
H (TD04) -- 100-120 90-115 2-18 35-39 216-287  B96-102  30T79-83 15-19
AT (TF00) 3 hr. at 600 °F 165-195 140-175 3-15 40-45 353-413 C36-42  30N56-62 22-28
1/4 HT (TH01)  2 hr. at 600 °F 175-205 150-185 3-10 40-45 353-424  C36-43  30N56-63 22-28
1/2 HT (TH02) 2 hr. at 600 °F 185-215 160-195 1-8  42-47 373-435  C38-44 30N58-63  22-28
HT (TH04) 2 hr. at 600 °F 190-220 165-205 1-6  45-50 373-446   C38-45  30N58-65 22-28


Beryllium Copper Physical Properties 190 C17200

 

      Yield Strength  

108 Cycles

ksi

 		 Hardness     
Temper Heat Treatment  Tensile Strength ksi  0.2% offset ksi  Elongation %

Fatigue Strength 

 Diamond Pyramid  Rockwell B or C Rockwell Superficial Electrical Conductivity % IACS 
AM (TM00) Mill Hardened 100-110 70-95 16-30 40-45 210-251 B95-C23 30N37-44 17-28
1/4 HM (TM01) Mill Hardened 110-120 80-110 15-25 41-47 230-271 C20-26 30N41-47 17-28
1/2 HM (TM02) Mill Hardened 120-135 95-125 12-22 42-48 250-301 C23-30 30N44-51 17-28
HM (TM04) Mill Hardened 135-150 110-135 9-20 45-52 285-343 C28-35 30N48-55 17-28
SHM (TM05) Mill Hardened 150-160 125-140 9-18 47-55 309-363 C31-37 30N52-56 17-28
XHM (TM06) Mill Hardened 155-175 135-170 4-15 50-57 317-378 C32-38 30N52-58 17-28
XHMS (TM08) Mill Hardened 175-190 150-180 3-12 50-60 325-413 C33-42 30N53-62 17-28


Beryllium Copper Physical Properties 290 C17200

 

      Yield Strength  

108 Cycles

ksi

 Hardness     
Temper Heat Treatment  Tensile Strength ksi  0.2% offset ksi  Elongation %

Fatigue Strength 

 Diamond Pyramid  Rockwell B or C Rockwell Superficial Electrical Conductivity % IACS 
TM00 Mill Hardened 100 min 75-95  19-35  40-45  225-309  B98-C31  30T81-30N52  17-26
TM02 Mill Hardened  120 min  95-115  14-30  42-48  255-339  C25-34  30N46-54  17-26
TM04 Mill Hardened  140 min  115-135  9-25  44-50  285-369  C28-38  30N48-58  17-26
TM06 Mill Hardened  155 min  135-155  6-13  47-57  317-393 C32-40   30N52-60  17-26
TM08 Mill Hardened  175 min  155-175  3-15  50-60  345-429  C35-43  30N55-62  17-26


Beryllium Copper Physical Properties 174 C17410

 

      Yield Strength  

108 Cycles

ksi

 Hardness     
Temper Heat Treatment  Tensile Strength ksi  0.2% offset ksi  Elongation % Fatigue Strength  Diamond Pyramid  Rockwell B or C Rockwell Superficial Electrical Conductivity % IACS 
1/2 HT (TH02)  Mill Hardened 95-115   80-100  10-20  40-45 180-230   B89-98  30T75-81.9  50 min
 HT (TH04)  Mill Hardened  110-130  100-120  7-17  40-45  210-278  B95-102  30T79-30N48  45-60


Beryllium Copper Physical Properties 3 C17510

 

      Yield Strength  

108 Cycles

ksi

 Hardness     
Temper Heat Treatment  Tensile Strength ksi  0.2% offset ksi  Elongation %

Fatigue Strength 

 Diamond Pyramid  Rockwell B or C Rockwell Superficial Electrical Conductivity % IACS 
A (TB00) - 35-55 20-45 20-40 20-30 65-125 B20-45 30T28-45 20-30
H (TD04) - 70-85 55-80 2-10 25-35 144-176 B78-88 30T69-75 20-30
 AT (TF00)  Mill Hardened  100-130  80-100  10-25  38-44  195-275  B92-100  30T77-82 45-60
 HT (TH04)  Mill Hardened  110-135  95-120  8-20  42-47  216-287  B95-102  30T79-83  48-60


Beryllium Copper Physical Properties Brush 60 C17460

 

      Yield Strength  

108 Cycles

ksi

 Hardness     
Temper Heat Treatment  Tensile Strength ksi  0.2% offset ksi  Elongation %

Fatigue Strength 

 Diamond Pyramid  Rockwell B or C Rockwell Superficial Electrical Conductivity % IACS 
3/4 HT (TH03)  Mill Hardened  115-135  95-115  11min  46-47        50min
 HT (TH04)  Mill Hardened  120-140  105-125  10min  42-45        50min


Copper Beryllium Strip Specifications

Materion Brush Performance Alloys 

 UNS Number  Specification 
 25  C1720  ASTM B194
 190  C17200  ASTM B194
 290  C17200  ASTM B194
 3  C17510  ASTM B534
 174  C17410  ASTM B768
 Brush 60 C17460   ASTM B768
   
 ASTM  American Society for Testing and Materials 
QQ   Federal Specification 
 MIL  Military Specification 
 SAE  Society of Automotive Engineers 
 AMS  Aerospace Materials Specification (Published by SAE) 
Download a Printer-Friendly Version of Beryllium Copper Specs. Download Your Specs Now

Ordering

Minimum Order Quantities

Our Minimum Order Quantities enable us to suit metal product orders of all sizes. Every metal product we provide has its own MOQ, and for beryllium copper, our MOQ is 3 lbs. While we can, and will, support orders for quantities smaller than this, the minimum lot charge will remain the same for any quantities ordered at, or below, a metal’s MOQ. Additional variables apply depending on material thickness, width, and additional processing.

Production Process

740x455_0007_Berryllium
1

Alloys are heated into a soluble mixture

2

The mixture is deformed, quenched, and reheated several times to achieve an ideal internal structure

3

Final mixture is cooled and formed

Pros/Cons

Pros:

  • Superb electrical and thermal conductivity
  • Ductile
  • Able to be stamped into complex shapes within tight tolerances
  • Corrosion-resistant
  • Non-sparking
  • Non-magnetic
Gallery-740x455_0006_Mead-281
Gallery-740x455_0005_Mead-285
Gallery-740x455_0013_Mead-233

Cons:

  • High-cost
  • Its dust, mist, and fume is toxic to humans
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Applications

Eletronics-Communications

Electronics & Telecommunications

Beryllium Copper is extremely versatile and known for its use in electronic connectors, telecommunications products, computer components, and small springs. 

Electronics-Manufacturing

Electronics Manufacturing & Equipment

From high-definition televisions to thermostats, BeCu is used for a variety of different applications because of its high conductivity. Consumer electronics and telecommunications account for nearly half of all beryllium copper (BeCu) alloy consumption.

Oil-Gas

Oil & Gas

In environments like oil rigs and coal mines, a single spark can be enough to endanger lives and assets. This is one situation where Beryllium Copper being non-sparking and non-magnetic can truly be a life-saving quality. Tools like wrenches, screwdrivers, and hammers used on oil rigs and coal mines have the letters BeCu on them, indicating there are made of Beryllium Copper and safe to use in those environments. 

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Quick Quote

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Are you in need of Beryllium Copper? Let us know the quantity, specifications, and delivery date you need, and we'll provide you with a quote typically within 2 hours or nearly guaranteed same day.

Stock Items

Looking for Stock Beryllium Copper?

Mead Metals stocks beryllium copper products in gauges from 0.003 up to 0.130. We offer annealed, quarter hard, half-hard, full-hard, 1/4 HM, 1/2 HM, and HM tempers. All our beryllium copper products are available in sheet and coil.

See a full list of beryllium copper stock items here.