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Beryllium Copper C17200 Round Bar Manufacturer and Supplier in India

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Beryllium Copper Round Bars of C17200 Grade are strong copper alloys that have applications when strength, conductivity, fatigue properties, and no sparking are essential. Beryllium is present in C17200 alloy in an amount of 1.80 to 2.00 percent. C17200 grade is precipitation hardened to yield a tensile strength of 1140 to 1550 MPa. C17200 round bar is available solution annealed or age hardened for machining and fabrication. The typical applications are bushings, moulds, resistance welding electrodes and downhole tools. Sachin Steel Centre is an Indian manufacturer and supplier of Beryllium Copper C17200 Round Bar with diameters ranging from 3 mm to 250 mm, having an EN 10204 3.1 mill test certificate.

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Table Of Content

Technical Data

Specifications of Beryllium Copper C17200 Round Bar

Parameter

Specification

Alloy

UNS C17200 (Alloy 25, CDA 172, CuBe2, DIN 2.1247)

Standards

ASTM B196 / B196M, ASME SB196; ASTM B249 for general requirements and tolerances; AMS 4650 and 4651 where certified

Welding Class

RWMA Class 4 (age hardened material)

Beryllium Content

1.80% to 2.00%

Tempers

Solution annealed TB00 (A); cold drawn TD01 (1/4 H), TD02 (1/2 H), TD04 (H); age hardened TF00 (AT), TH04 (HT); mill hardened TM series

Diameter Range

3 mm to 250 mm

Length

Random, fixed and cut lengths

Finish

Black, bright drawn, centreless ground or turned, as agreed at quotation

Tolerance

Per ASTM B249 (general requirements and tolerances)

Density

About 8.25 g/cm³ annealed (0.298 lb/in³); about 8.36 g/cm³ age hardened

Certification

EN 10204 3.1 mill test certificate per lot

Chemical Composition of Beryllium Copper C17200 Round Bar

Element

Min (%)

Max (%)

Beryllium (Be)

1.80

2.00

Cobalt + Nickel (Co + Ni)

0.20

—

Cobalt + Nickel + Iron (Co + Ni + Fe)

—

0.60

Lead (Pb)

—

0.02

Iron (Fe)

—

0.10

Aluminium (Al)

—

0.20

Silicon (Si)

—

0.20

Copper (Cu)

Balance

Balance

Mechanical Properties of Beryllium Copper C17200 Round Bar

Temper

Condition

Tensile (MPa / ksi)

Yield 0.2% (MPa / ksi)

Elongation

Hardness

TB00 (A)

Solution annealed

410 to 540 / 60 to 78

190 to 275 / 28 to 40

35 to 60%

HRB 45 to 78

TD01 (1/4 H)

Cold drawn

515 to 650 / 75 to 94

415 to 550 / 60 to 80

10 to 35%

HRB 75 to 88

TD02 (1/2 H)

Cold drawn

585 to 725 / 85 to 105

515 to 650 / 75 to 94

5 to 25%

HRB 88 to 96

TD04 (H)

Cold drawn

690 to 830 / 100 to 120

510 to 620 / 74 to 90

2 to 10%

HRB 96 to 102

TF00 (AT)

Age hardened from TB00

1140 to 1345 / 165 to 195

960 to 1170 / 140 to 170

3 to 10%

HRC 36 to 41

TH04 (HT)

Age hardened from TD04

1310 to 1550 / 190 to 225

1100 to 1310 / 160 to 190

1 to 4%

HRC 41 to 45

TM series

Mill hardened

850 to 1150 / 123 to 167

700 to 1000 / 100 to 145

Per temper

HRC 26 to 37

Physical Properties of Beryllium Copper C17200 Round Bar

Property

Metric

Imperial

Density (annealed)

8.25 g/cm³

0.298 lb/in³

Density (age hardened)

8.36 g/cm³

0.302 lb/in³

Melting range

865°C to 980°C

1590°F to 1800°F

Modulus of elasticity (tension)

128 GPa

18.5 x 106 psi

Modulus of rigidity

50 GPa

7.3 x 106 psi

Poisson’s ratio

0.30

0.30

Electrical conductivity (annealed)

15% to 19% IACS

15% to 19% IACS

Electrical conductivity (age hardened)

22% IACS minimum

22% IACS minimum

Thermal conductivity (20°C, aged)

105 W/m·K

60.7 BTU/ft·h·°F

Coefficient of thermal expansion (20 to 200°C)

17.0 x 10−6 /°C

9.4 x 10−6 /°F

Machinability (C36000 = 100)

About 20

About 20

Magnetic permeability

Below 1.004 (non magnetic)

Below 1.004

Equivalent Grades of Beryllium Copper C17200 Round Bar

Country / System

Designation

Rod and Bar Standard

USA (UNS / CDA)

UNS C17200 / CDA 172 / Alloy 25

ASTM B196, ASME SB196; AMS 4650 and 4651

ISO

CuBe2

ISO designation CuBe2

European (EN)

CuBe2 / CW101C

EN 12163 (rod for general purposes)

Germany (DIN)

CuBe2 / 2.1247

DIN 17666 (superseded by EN)

Japan (JIS)

C1720

JIS H3270 (rods and bars)

British (BS)

CB101

BS 2874 (rods and sections)

China (GB)

QBe2

GB/T 5231

Russia (GOST)

BrB2

GOST 18175

Welding class

RWMA Class 4

RWMA resistance welding electrode classification

Beryllium Copper C17200 Round Bar Size Chart and Weight Chart

Diameter (mm)

Diameter (inches)

Weight (kg/m)

Weight (lbs/ft)

3 mm

0.118 in

0.058 kg

0.039 lbs

4 mm

0.157 in

0.104 kg

0.070 lbs

5 mm

0.197 in

0.162 kg

0.109 lbs

6 mm

0.236 in

0.233 kg

0.157 lbs

8 mm

0.315 in

0.415 kg

0.279 lbs

10 mm

0.394 in

0.648 kg

0.435 lbs

12 mm

0.472 in

0.933 kg

0.627 lbs

16 mm

0.630 in

1.659 kg

1.115 lbs

20 mm

0.787 in

2.592 kg

1.742 lbs

25 mm

0.984 in

4.050 kg

2.721 lbs

30 mm

1.181 in

5.832 kg

3.919 lbs

40 mm

1.575 in

10.367 kg

6.966 lbs

50 mm

1.969 in

16.199 kg

10.885 lbs

60 mm

2.362 in

23.326 kg

15.675 lbs

75 mm

2.953 in

36.447 kg

24.492 lbs

100 mm

3.937 in

64.795 kg

43.540 lbs

125 mm

4.921 in

101.243 kg

68.032 lbs

150 mm

5.906 in

145.790 kg

97.966 lbs

175 mm

6.890 in

198.436 kg

133.343 lbs

200 mm

7.874 in

259.181 kg

174.162 lbs

250 mm

9.843 in

404.971 kg

272.128 lbs

Applications and Industrial Uses of Beryllium Copper C17200 Round Bar

  • Resistance Welding Electrodes
  • Plastic Injection Mould Cores
  • Aerospace Landing Gear Bushings
  • Oil and Gas Downhole Tools
  • Electrical Connector Components
  • Switchgear Contact Components
  • Non-Sparking Hand Tools
  • Precision Bearing Components
Application Industries

Frequently Asked Questions

Beryllium Copper C17200 Round Bar is a high-strength copper alloy bar offering excellent strength, conductivity, fatigue resistance, and wear resistance.

UNS C17200 is also known as Alloy 25, CDA 172, CuBe2, and DIN 2.1247.

C17200 offers high strength, good electrical and thermal conductivity, fatigue resistance, wear resistance, and non-sparking properties.

Yes, C17200 Round Bar can be precipitation hardened through solution treatment and aging to increase strength and hardness.

Yes, C17200 Round Bar is generally non-magnetic and provides non-sparking properties.

Yes, C17200 Round Bar can be machined, particularly in its solution-annealed condition, using suitable machining practices.

The terms overlap in practice. We list rod for drawn and ground sizes up to 150 mm used for electrodes and machined parts, and round bar for the full range from 3 mm to 250 mm, including large black bar. See our Rod page for smaller sizes.

Sachin Steel Centre supplies C17200 round bar from 3 mm to 250 mm in random, fixed and cut lengths, in black, bright drawn, centreless ground or turned finish.

Weight in kg per metre equals 0.00648 multiplied by the diameter in mm squared. A 50 mm bar weighs about 16.2 kg per metre.

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