ASTM B196 Grade C17200 TB00

Alternative and trade names
Alloy 290,Alloy 190,Alloy 25 (C17200) Tube,Alloy 25 (C17200) Strip
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Description

C17200 (CuBe2) is the most commonly specified beryllium copper and offers a wide combination of properties including good electrical conductivity, good formability and very high electrical and mechanical properties after heat treatment. This grade is supplied in age hardenable tempers TB00 (A). These require heat treatment to produce the alloy’s maximum strength and conductivity. The solution annealed TB00 (A) temper contains no cold work and is the softest temper.

Related Standards

Equivalent Materials

This material data has been provided by MakeItFrom.com,Matmatch,Materion Brush GmbH.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValue

Density

23.0 °C

8.26 - 8.8 g/cm³

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Dimension

PropertyValue

Outside diameter

19.1 - 406 mm

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Thickness

0.05 - 4.77 mm

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Width

1.27 - 406.5 mm

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Wall thickness

10-20% of outside diameter

Mechanical

PropertyTemperatureValueComment

Bendability 90°, bw

23.0 °C

0 - 3 [-]

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for strip with 0.20mm and thinner.,for strip with 0.25mm and thinner.

Bendability 90°, gw

23.0 °C

0 - 3.5 [-]

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for strip with 0.20mm and thinner.,for strip with 0.25mm and thinner.

Elastic modulus

23.0 °C

130 - 131 GPa

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Elongation

23.0 °C

1 - 75 %

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min., for strip thicker than 0.10 mm,for wire with 0.1mm diameter and more.

Hardness, Rockwell C

23.0 °C

36 - 42 [-]

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Hardness, Vickers

23.0 °C

210 - 446 [-]

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Shear modulus

23.0 °C

50 GPa

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Tensile strength

23.0 °C

410 - 1520 MPa

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min.

Yield strength

23.0 °C

220 MPa

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Yield strength Rp0.2

23.0 °C

130 - 1420 MPa

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Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

23.0 °C

1.75E-5 - 1.8E-5 1/K

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Melting point

870 °C

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Specific heat capacity

23.0 °C

360 J/(kg·K)

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Thermal conductivity

23.0 °C

84 - 130 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical resistivity

23.0 °C

6.2E-8 - 7.8E-6 Ω·m

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Specific Electrical conductivity

17 - 30 % IACS

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Magnetic

PropertyTemperatureValueComment

Relative magnetic permeability

23.0 °C

1 [-]

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max.

Chemical properties

PropertyValueComment

Aluminium

0 - 0.2 %

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Beryllium

1.8 - 2.2 %

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Cobalt

0.2 - 0.3 %

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max.,min. Nickel + Cobalt

Copper

96.1 - 98 %

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Balance

Iron

0 - 0.6 %

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max., Nickel + Cobalt + Iron,max. Nickel + Cobalt + Iron

Lead

0.2 - 0.6 %

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Nickel

0.2 - 0.6 %

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min. Nickel + Cobalt

Other

0 - 0.6 %

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max., Co+Ni+Fe

Silicon

0 - 0.2 %

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Technological properties

Property
Application areas

Aerospace: Landing gear, bearing bushes and high performance fasteners;Automotive: Valve guides, bushes and valve seats;Offshore & marine: Offshore drilling and instrumentation equipment, downhole tooling, valve, pump and shaft components;Other: Deep drawing tooling, plastic moulding dies, tools and plungers, die-casting plunger tips, non-magnetic and non sparking tools, electrical and electronic connectors, springs, fasteners, switchgear, resistance welding electrodes and equipment, flash butt welding dies and inserts, seam welding electrode shafts,Typical applications include high reliability spring contacts for battery contacts, audio jack contacts, and board to board contacts.,Typical applications include high reliability spring contacts for switches and relays, battery contacts, and automotive terminals.,Typical applications include bushings and bearings for aircraft as well as drill collars and instrument housings for oil and gas exploration.,Typical applications include pressure sensor bellows, burn-in and test socket contacts, computer processor socket contacts, and electromagnetic shielding gaskets.,EtchMet alloy is a material that is tailor made for the springs in voice coil motors and optical image stabilization systems common in smart phone cameras.

Corrosion properties

High corrosion resistance

General machinability

Very good machinability