C17200 Beryllium Copper Sheet | ASTM B194 Standard | High Strength, Excellent Machinability

C17200 Beryllium Copper Sheet | ASTM B194 Standard | High Strength, Excellent Machinability

Chemical Composition:
Be: 1.80-2.00%
Co+Ni: 0.20% Min.
Co+Ni+Fe: 0.60% Max.
Others; 0.5% Max
Cu: Balance
Note: Cu+Be+Co+Ni+Fe 99.5% minimum.

Density (g/cm3): 0.302Ib/in3 at 68F
Specific Gravity: 8.36g/cm3
Melting Point(Liquidus): 1800F
Melting Point(Solidus): 1600F
Electrical Resistivity:: 46.2 ohms/cmil/ft@68F
Electrical Conductivity: 22%IACS@68F(heat-treated)
Thermal Conductivity : 62.0Btu ft ata 68F
Modulus Elasticity in Tension: 18500ksi
Modulus Rigidity: 7300ksi

Common Name: C17200, alloy25, CuBe2, QBe2.0, DIN 2.1247

CuBe2--C17200 Beryllium Copper is the most commonly utilized Copper Beryllium alloy and is notable for its highest strength and hardness compared to commercial copper alloys. C17200 alloy contains appr. 2% of beryllium and achieves its ultimate tensile strength can exceed 200 ksi, while the hardness approaches Rockwell C45. Meanwhile, the electrical conductivity is a minimum of 22% IACS in the fully aged condition.C17200 also exhibits exceptional resistance to stress relaxation at elevated temperatures.

Typical Application for C17200 Beryllium Copper Alloys:

Electrical Industry: Electrical Switch and Relay Blades, Fuse Clips, Switch Parts, Relay parts, Connectors, Spring Connectors, Contact Bridges, Belleville Washers, Navigational Instruments, Clips

Fasteners: Washers, Fasteners, Lock Washers, Retaining Rings, Roll Pins, Screws, Bolts

Industrial: Pumps, Springs, Electrochemical, Shafts, Non-Sparking Safety Tools, Flexible Metal Hose, Housings for Instruments, Bearings, Bushings, Valve Seats, Valve Stems, Diaphragms, Springs, Welding Equipment, Rolling Mill Parts, Spline Shafts, Pump Parts, Valves, Bourdon Tubes, Wear Plates on Heavy Equipment, Bellows, Mining parts

International Specification:

Rods/Bars/Tubes: ASTM B196,251,463; SAE J461,463; AMS 4533,4534,4535; AMS4650,4651;

RWMA Class 4

Strips: ASTM B194, AMS4530,4532; SAE J461,463

Sheets: ASTM B194

Wires: ASTM B197, AMS4725, SAE J461,463

Plates: ASTM B194, SAE J461,463; AMS4530,4533,4534,AMS4650,4651; RWMA Class 4.

European Standards: CuBe2, DIN 2.1247, CW101C to EN

Note:

ASTM: American Society for Testing and Materials

SAE: Society of Automotive Engineers

AMS: Aerospace Materials Specification (Published by SAE)

RWMA: Resistance Welder Manufacturers' Association

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

Most Commonly Temper Used:

Rods/Bars/Tubes: A(TB00),H(TD04),AT(TF00),HT(TH04)

Strips: A(TB00),1/4 H(TD01),1/2 H(TD02),H(TD04)

Sheets: A(TB00),1/4 H(TD01),1/2 H(TD02),H(TD04),AT(TF00)

Wires: A(TB00),1/4 H(TD01),1/2 H(TD02),3/4H(TD03),H(TD04)

Plates: A(TB00),H(TD04),AT(TF00),HT(TH04)

Typical Physical Properties

(Temper and Tensile Strength Reference Table As Bellowing)

Temper and Tensile Strength Reference




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