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Beryllium Copper C17200 Sheet Manufacturer and Supplier in India

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Beryllium Copper C17200 Sheet is a heat-treatable copper alloy that exhibits high tensile strength, good fatigue strength, electrical conductivity, and non-sparking characteristics. C17200 is also known as CDA 172, Alloy 25, CuBe2, DIN 2.1247 and BeCu. C17200 reaches a tensile strength above 1500 MPa in the TH04 temper. These sheets are available in thicknesses ranging from 0.1 mm to 4.8 mm and in solution annealed, cold worked, age hardened and pre-hardened tempers (all in conformance with ASTM B194 and ASME SB194). Every lot is supplied with an EN 10204 3.1 mill test certificate. Sachin Steel Centre is a manufacturer and supplier of Beryllium Copper C17200 Sheet in India, supplying precision sheet for connectors, relays, springs and switchgear.

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Table Of Content

Technical Data

Specifications of Beryllium Copper C17200 Sheet

Parameter

Technical Specification

Alloy Grade

UNS C17200 / Alloy 25 / CDA 172 / CuBe2 / DIN 2.1247

Governing Standards

ASTM B194, ASME SB194 (Plate, Sheet, Strip & Rolled Bar); ASTM B248 (General Requirements & Tolerances)

Beryllium Content

1.80% to 2.00% Be

Temper Conditions

Annealed: TB00 (A)
Cold Worked: TD01 (1/4 H), TD02 (1/2 H), TD04 (H)
Age Hardened: TF00 (AT), TH01–TH04 (HT)
Mill Hardened: TM00–TM08 series

Thickness Range

0.10 mm to 4.80 mm (custom gauges available on order)

Width & Length

Stock widths: 100 mm, 200 mm, 300 mm, 600 mm, 1000 mm
Cut to size sheets and custom slit coils

Surface Finish

Mill finish, bright annealed, acid pickled, polished

Density

Annealed: 8.25 g/cm³ (0.298 lb/in³)
Age Hardened: 8.36 g/cm³ (0.302 lb/in³)

Certification

EN 10204 3.1 Mill Test Certificate with full chemical & mechanical traceability; PMI testing upon request

Chemical Composition of Beryllium Copper C17200 Sheet

Element

Minimum (%)

Maximum (%)

Beryllium (Be)

1.80

2.00

Cobalt + Nickel (Co + Ni)

0.20

—

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

—

0.60

Silicon (Si)

—

0.20

Aluminum (Al)

—

0.20

Iron (Fe)

—

0.10

Lead (Pb)

—

0.02

Copper (Cu)

Balance

Balance

Mechanical Properties of Beryllium Copper C17200 Sheet

Temper Code

Standard Condition Label

Tensile Strength (MPa / ksi)

Yield Strength 0.2% (MPa / ksi)

Elongation (%)

Hardness Range

TB00

Solution Annealed (A)

410–540 / 60–78

190–275 / 28–40

35–60%

HRB 45–78

TD01

1/4 Hard Cold Worked (1/4 H)

515–650 / 75–94

415–550 / 60–80

10–35%

HRB 75–88

TD02

1/2 Hard Cold Worked (1/2 H)

585–725 / 85–105

515–650 / 75–94

5–25%

HRB 88–96

TD04

Full Hard Cold Worked (H)

690–830 / 100–120

510–620 / 74–90

2–10%

HRB 96–102

TF00

Age Hardened from TB00 (AT)

1140–1345 / 165–195

960–1170 / 140–170

3–10%

HRC 36–41

TH04

Age Hardened from TD04 (HT)

1310–1550 / 190–225

1100–1310 / 160–190

1–4%

HRC 41–45

TM Series

Mill Hardened (Pre-aged)

850–1150 / 123–167

700–1000 / 100–145

5–18%

HRC 26–37

Physical and Thermal Properties of Beryllium Copper C17200 Sheet

Physical Property

Metric Value

Imperial Value

Density (Solution 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 × 106 psi

Modulus of Rigidity (Shear)

50 GPa

7.3 × 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 (20–200°C)

17.0 × 10−6 /°C

9.4 × 10−6 /°F

Magnetic Permeability

< 1.004 (Virtually Non-Magnetic)

< 1.004

Equivalent Grades of Beryllium Copper C17200 Sheet

Country / System

Grade Designation

Applicable Flat Product Standard

USA (UNS / CDA)

UNS C17200 / CDA 172 / Alloy 25

ASTM B194, ASME SB194, ASTM B248

ISO System

CuBe2

ISO designation CuBe2

European Union (EN)

CuBe2 / CW101C

EN 1652 (Plate, Sheet, Strip), EN 1654 (Strip for Springs)

Germany (DIN)

CuBe2 / 2.1247

DIN 17666 (Superseded by EN 1652)

Japan (JIS)

C1720

JIS H3130 (copper beryllium alloy sheets and strips for springs)

United Kingdom (BS)

CB101

BS 2870 (Sheet, Strip & Foil)

China (GB)

QBe2

GB/T 5231

Russia (GOST)

BrB2

GOST 18175

Size Chart of Beryllium Copper C17200 Sheet

Thickness (mm)

Thickness (Inches)

Weight (kg/m²)

Weight (lbs/ft²)

0.10 mm

0.0039 in

0.83 kg

0.17 lbs

0.15 mm

0.0059 in

1.24 kg

0.25 lbs

0.20 mm

0.0079 in

1.65 kg

0.34 lbs

0.25 mm

0.0098 in

2.06 kg

0.42 lbs

0.30 mm

0.0118 in

2.48 kg

0.51 lbs

0.50 mm

0.0197 in

4.13 kg

0.84 lbs

0.80 mm

0.0315 in

6.60 kg

1.35 lbs

1.00 mm

0.0394 in

8.25 kg

1.69 lbs

1.20 mm

0.0472 in

9.90 kg

2.03 lbs

1.50 mm

0.0591 in

12.38 kg

2.53 lbs

2.00 mm

0.0787 in

16.50 kg

3.38 lbs

2.50 mm

0.0984 in

20.63 kg

4.22 lbs

3.00 mm

0.1181 in

24.75 kg

5.07 lbs

4.00 mm

0.1575 in

33.00 kg

6.76 lbs

4.80 mm

0.1890 in

39.60 kg

8.11 lbs

Beryllium Copper C17200 Sheet Dimensions Chart

Standard Sheet Dimensions

0.5 mm Thick

1.0 mm Thick

2.0 mm Thick

3.0 mm Thick

4.0 mm Thick

500 x 500 mm

1.03 kg

2.06 kg

4.13 kg

6.19 kg

8.25 kg

600 x 600 mm

1.49 kg

2.97 kg

5.94 kg

8.91 kg

11.88 kg

1000 x 500 mm

2.06 kg

4.13 kg

8.25 kg

12.38 kg

16.50 kg

1000 x 1000 mm

4.13 kg

8.25 kg

16.50 kg

24.75 kg

33.00 kg

1200 x 600 mm

2.97 kg

5.94 kg

11.88 kg

17.82 kg

23.76 kg

Applications and Industrial Uses of Beryllium Copper C17200 Sheet

  • Electrical Connectors
  • Switchgear Components
  • Relay Components
  • Spring Contacts
  • Stamped and formed spring parts
  • Battery and terminal contacts
  • Shielding clips and EMI parts
  • Non-Sparking Tools and Equipment
Application Industries

Frequently Asked Questions

Beryllium Copper C17200 Sheet is a high-strength, age-hardenable copper alloy sheet containing approximately 1.80% to 2.00% beryllium.

UNS C17200 is also known as Alloy 25, CDA 172, CuBe2, and Beryllium Copper 172.

In the TH04 temper C17200 reaches 1310 to 1550 MPa tensile strength, above many carbon steels. Steel strength varies widely by grade, so compare against the specific steel and temper you use.

It is used for electrical connectors, switchgear, relay components, spring contacts, aerospace parts, and non-sparking equipment.

Yes, C17200 provides good electrical and thermal conductivity along with high strength.

Yes, C17200 is an age-hardenable alloy that can be heat treated to achieve higher strength and hardness.

Sachin Steel Centre supplies C17200 sheet from 0.10 mm to 4.80 mm in solution annealed, cold worked, age hardened and mill hardened tempers. Thicker material is supplied as plate.

Multiply length in metres by width in metres by thickness in mm by 8.25. A sheet 1 m by 1 m and 1 mm thick weighs about 8.25 kg.

Yes. Form it in the solution annealed TB00 temper, then age harden to reach full strength. Minimum bend radius depends on thickness and temper, so confirm it with us before ordering.

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