TD02 CDA 172 Beryllium Copper Bars High Tensile Strength For Welding Equipment

Place of Origin China
Certification ISO,SGS
Model Number CDA 172
Minimum Order Quantity 50
Price 30-50USD
Packaging Details Pack in coil+waterproofing winding film+Drier+Wooden Case
Delivery Time 10~15days
Payment Terms L/C, T/T, Western Union
Supply Ability 200T/Month

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Product Details
Name CDA 172 Beryllium Cu Alloy Bars CUBERYLLIUM® Grade CUBERYLLIUM® 172
Standard ASTM B196,251,463; SAE J461,463; AMS 4533,4534,4535; AMS 4650,4651; RWMA Class 4 Safe Handling No Special Health Risk.
Machining Property Good Surface Bright/Polished
Flatness Good State A(TB00),1/2H (TD02), H(TD04),AT(TF00),HT(TH04)
Diameter 5mm-100mm Application For Electrical Industry
Elestic Modulus 131Gpa Melting Point(solidus) 870℃
Electrical Conductivity 22-28% IACS
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TD02 CDA 172 Beryllium Copper Bars


CDA 172 Beryllium Copper Bars High Tensile TD02


TD02 be cu alloy Rods

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Product Description

CDA 172 Beryllium Cu Alloy Bars With High Tensile Strength For Welding Equipment

Product Normal Description:

Product Name: Beryllium Cu alloy bars

Grade: CDA 172

Standard:  ASTM B196,251,463; SAE J461,463; AMS 4533,4534,4535; AMS 4650,4651; RWMA Class 4

Product Diameter: 5mm-100mm

State: A(TB00),1/2H (TD02), H(TD04),AT(TF00),HT(TH04)

Typical Application: For electrical industry

Product Brand: CUBERYLLIUM®


CDA 172 Beryllium Cu Alloy International Specification:

Rods/Bars/Tubes:  ASTM B196,251,463; SAE J461,463; AMS 4533,4534,4535; AMS 4650,4651; RWMA Class 4


European Standards: CuBe2, Alloy 25, QBe2, BrB2, DIN.2.1247, CW101C to EN



ASTM: American Society for Testing and Materials

SAE: Society of Automotive Engineers

AMS: Aerospace Materials Specification(Published by SEA)

RWMA: Resistance Welder Manufacturers' Association

Note: Unless otherwise specified, material will be produced by ASTM.


Chemical Composition of CDA 172 Beryllium Cu Alloy (CUBERYLLIUM ®-172):

Product Grade: CUBERYLLIUM ®-172(UNS. C17200)

Beryllium(Be): 1.80-2.00%

Cobalt(Co) + Nickel(Ni): 0.20% Min

Cobalt(Co) + Nickel(Ni) + Iron(Fe): 0.60% Max

Lead: 0.02% Max

Copper(Cu): Balance

Note: Copper plus additions equal 99.5% Minimum.



Typical Physical Properties of CDA 172 Beryllium Cu Alloy (CUBERYLLIUM ®-172):

Characteristics   English Metric
Nominal density



  0.298 lbs/in3 8.25 g/cm3
Specific heat


(212 °F/100°C)

  0.10 BTU/lb – °F 420 J/KG- °K
Melting range   1590-1800 °F 865-980 °C
Coefficient of thermal



68°F – 212°F


20°C – 100°C

9.3 micro in/in- °F 16.7 micro m/m- °K
68°F – 392°F


20°C – 200°C

9.4 micro in/in- °F 17.0 micro m/m- °K
68°F – 572°F


20°C – 300°C

9.9 micro in/in- °F 17.8 micro m/m- °K
Thermal conductivity 20°C / 68°F 60-75 BTU/ft- hr – °F 105-130 W/m – °K
200°C / 392°F 75-77 BTU/ft- hr – °F 130-133 W/m – °K
Electrical resistivity 20°C / 68°F 57-115 nΩ ∙ m
Electrical conductivity Volumetric:


20°C / 68°F

15-30% IACS


Mechanical and Electrical Properties of CDA 172 Beryllium Cu Alloy Bars:

Temper(*) Diameter Heat Treatment Tensile Strength ksi

Elongation Percent


Electrical Conductivity Percent


Hardness Rockwell B or C Scale
A(TB00) ALL SIZE / 400~600 30 15~19 B45~85
1/2H(TB04) 5~40 / 550~700 10 15~19 >B78

5~10 / 660~900 5 15~19
>10~25 / 620~860 5 15~19
>25 / 590~830 5 15~19
AT(TF00) ALL SIZE 3 hr 320°C 1100~1380 2 22~28 C35~42
HT(TH04) 5~10 2 hr 320°C 1200~1550 1 22~28 C37~45
>10~25 1150~1520 1 22~28 C36~44
>25 1120~1480 1 22~28 C35~44



Product Photos:

TD02 CDA 172 Beryllium Copper Bars High Tensile Strength For Welding Equipment 0



Applications of CDA 172 Beryllium Cu Alloy(CUBERYLLIUM ®-172):

CUBERYLLIUM ®-172 is usually used for electrical industry, fasteners and industrial.

Electrical Industry: electrical switch and relay blades(switch parts, relay parts), clips, fuse clips, connectors, spring connectors, navigational indstruments, contact bridges, belleville washers;

Fasteners: washers, lock washers, fasteners, retaining rings, roll pins, screws, bolts;

Industrial: pump parts, springs, electrochemical, spline shafts, non sparking safety tools, flexible metal hose, housings for indtruments, bearings, bushings, valve seats, valve stems, disphragms, springs, welding equipment, rolling mill parts, valves, bourdon tubes, wear plates on heavy equipment, bellows.



Q1:Could you produce Beryllium Copper strip by Mill Hardened process.
A1:Yes, we could produce AM(TM00), 1/2HM(TM01).HM(TM04) XHM(TM06) XHMS(TM08).,we are the only factory could do harden strip in China.

Q2: What’s the advantages the Beryllium Copper of CUBERYLLIUM®.
A2: 1: The Biggest Coil weight could be reach 1200kg/Coil

2:We are the only one who melting by Vacuum semi-Continuous Furnace.

3:Surface further polishing for top clients.

Q3: Why you melting by Vacuum semi-Continuous Furnace.
A3:Could be get the Cast ingot without gas,smaller segregation, Grain Refinement

Q4: What's the payment terms?
A4: We accept T/T, L/C, Paypal etc. It can be negotiated when the amount is different..