Kalpataru Piping Solution manufactures and supplies UNS C17200 Beryllium Copper Round Bar to industrial buyers in India and globally. Also known as Copper Beryllium Alloy 25, CDA 172, and CuBe2 under the European designation, this alloy combines the highest strength available in the copper family with good electrical and thermal conductivity, non-magnetic properties, and outstanding resistance to wear, fatigue, and galling. Beryllium Copper C17200 round bar achieves tensile strength comparable to high-strength steel while retaining the corrosion resistance and conductivity characteristics of copper, a combination not matched by any other commercial copper alloy.
C17200 beryllium copper rod stock is maintained in annealed (A, TB00) and precipitation hardened temper conditions, commonly designated AT and HT. The AT condition (solution annealed and precipitation hardened from the A temper) is the most widely specified grade for high-strength applications. The HT condition (cold-worked and then precipitation hardened) delivers the highest hardness and strength available in this alloy family. As a specialist Beryllium Copper C17200 bar supplier, Kalpataru can supply certified material per ASTM B196, AMS 4650, AMS 4651, AMS 4533, AMS 4534, and MIL C 21657 to your specific temper requirement, diameter, and cut length.
ASTM B196 beryllium copper round bar is our core specification product, supplied in sizes from 3mm to 800mm diameter and lengths from 1000mm to 6000mm. Mill test certificates, PMI reports, and EN 10204 3.1 or 3.2 certificates are available with every supply. As an established Beryllium Copper round bar exporter, we ship to buyers across the Middle East, Europe, Southeast Asia, and the Americas from ready stock in Mumbai. For the full beryllium copper range, see our Beryllium Products hub or browse related Beryllium Copper Strips and Coils.
Copper Beryllium Round Bar Specification
| Parameter | Details |
| Specifications | AMS 4650, AMS 4534, AMS 4651, AMS 4533, ASTM B196, ASME SB196, MIL C 21657, SAE J463, SAE J461 |
| Grade | UNS C17200, CDA 172, Alloy 25, CuBe2, DIN 2.1247 |
| Round Bar Diameter | 3mm to 800mm |
| Square Bar Size | 4mm x 4mm to 100mm x 100mm |
| Flat Bar Size | Thickness 2mm to 100mm, Width 10mm to 500mm |
| Hex Bar Size (A/F) | 2mm to 100mm |
| Billet Size | 1/2 inch to 495mm diameter |
| Rectangle Size | 33mm x 30mm to 295mm x 1066mm |
| Length | 1000mm to 6000mm (random, fixed, or custom cut) |
| Tolerance | H8, H9, H10, H11, H12, H13, K9, K10, K11, K12 or as required |
| Surface Finish | Bright, polished, rough turned, centreless ground, black, hot rolled pickled, cold drawn |
| Temper Conditions | A (TB00) annealed, H (TD04) cold worked, AT (TF00) precipitation hardened, HT (TH04) fully hardened |
| Form | Round, rod, precision ground bar, square, hex, flat, hollow, triangle, rectangle, threaded, T-bar, half round, rings, billet, ingot, forging |
C17200 Beryllium Copper Bar and Rod Equivalent Grades
| Standard | UNS | WNR (DIN) | CDA | AMS | ASTM | Trade Name |
| Alloy 25 | C17200 | 2.1247 | CDA 172 | AMS 4650/4651/4533/4534 | ASTM B196/SB196 | CuBe2, Alloy 25 |
ASTM B196 Copper Beryllium Alloy Rod and Bar Chemical Composition
Element | Cu | Be | Co+Ni min | Al max | Si max | Pb max | |
Min/Max | Balance | 1.80-2.00% | 0.20% | 0.20% | 0.20% | 0.02% | |
Nominal | 98.1% | 1.90% | N/A | N/A | N/A | N/A | |
Beryllium Copper C17200 Bar and Rod Mechanical Properties by Temper Condition
C17200 beryllium copper is supplied in four primary temper conditions. Select the temper based on your strength, hardness, and conductivity requirements. Typical values below:
Temper / Condition | Tensile Strength (MPa) | Yield Strength 0.2% (MPa) | Elongation % | Hardness HRC | Electrical Conductivity % IACS |
A / TB00 (Annealed) | 469-703 | 195-483 | 35-60 | N/A (15-22 HRB) | 22-25 |
H / TD04 (Cold Worked) | 703-1000 | 586-930 | 2-8 | 22-28 | 20-22 |
AT / TF00 (Precip. Hardened) | 1172-1379 | 1034-1241 | 3-10 | 35-42 | 22-25 |
HT / TH04 (CW + Precip. Hardened) | 1241-1448 | 1138-1345 | 2-5 | 38-45 | 20-22 |
CuBe2 - C17200 Alloy 25 Physical Properties
Property | Unit | Value |
Density | g/cm3 | 8.3 |
Melting Range | deg C (deg F) | 865 to 980 (1590 to 1800) |
Specific Heat | J/kg K | 420 |
Thermal Conductivity | W/m K | 105 to 130 (depends on temper; higher in annealed, lower in hardened) |
Electrical Conductivity | % IACS | 22 to 26 (temper dependent) |
Electrical Resistivity | micro ohm cm | 6.86 to 7.85 (temper dependent) |
Coefficient of Thermal Expansion | micro m/m K (20 to 300 deg C) | 17.8 |
Elastic Modulus | GPa (10 to the 6 psi) | 128 (18.5) |
Shear Modulus | GPa | 48 |
Poisson’s Ratio | N/A | 0.30 |
Softening Temperature | deg C | 300 to 370 (onset; avoid sustained service above this range) |
Beryllium Copper Round Bar Types Available
Existing product photography to be retained. Types supplied:
- CuBe2 round bar (hot rolled, cold drawn, centreless ground, forged)
- C17200 beryllium copper rod (precision ground, bright, polished)
- Beryllium Copper Square Bar UNS C17200
- Beryllium Copper Flat Bar C17200
- CDA 172 round bar (Hex, A/F)
- Beryllium Copper Triangle Bar, Rectangle Bar, Half Round Bar
- Beryllium Copper Threaded Bar, Hollow Bar
- Beryllium Copper Billet and Ingot
Sizes Available of Beryllium Copper Round Bar
Size (inches) | Beryllium Copper Bar Reference | Size (inches) | Beryllium Copper Bar Reference |
3/8 | Bar 3/8 in | 1-5/8 | Bar 1-5/8 in |
1/2 | Bar 1/2 in | 1-3/4 | Bar 1-3/4 in |
5/8 | Bar 5/8 in | 1-7/8 | Bar 1-7/8 in |
3/4 | Bar 3/4 in | 2 | Bar 2 in |
7/8 | Bar 7/8 in | 2-1/8 | Bar 2-1/8 in |
1 | Bar 1 in | 2-1/4 | Bar 2-1/4 in |
1-1/8 | Bar 1-1/8 in | 2-3/8 | Bar 2-3/8 in |
1-1/4 | Bar 1-1/4 in | 2-1/2 | Bar 2-1/2 in |
1-3/8 | Bar 1-3/8 in | 3 to 6 | Bars 3 in through 6 in |
1-1/2 | Bar 1-1/2 in | Metric | 3mm to 800mm (custom) |
Applications of UNS C17200 Beryllium Copper Round Bar
Alloy 25 round bar is specified for applications requiring the unique combination of high mechanical strength, good electrical and thermal conductivity, non-magnetic properties, and non-sparking characteristics:
- Oil and Gas: Drill collars, bushings, landing gear, and downhole wireline equipment where non-sparking and non-magnetic properties are mandatory. C17200 is compliant with NACE MR0175 for sour service.
- Aerospace and Defense: Precision bushings, bearings, landing gear components, and non-magnetic structural parts where steel cannot be used due to magnetic interference.
- Electronics and Electrical: Connector springs, contact tips, switch components, and relay springs where high fatigue life and good electrical conductivity must coexist.
- Mold and Die Making: Injection mold inserts, cavity sections, and cores where high thermal conductivity reduces cycle times and high hardness resists wear.
- Resistance Welding: Electrode holders, shank assemblies (RWMA Class 4), and spot welding components where high strength and moderate conductivity are both required.
- Industrial Machinery: Heavy-duty bearings, bushings, cam followers, and gears in applications where galling resistance under high load is critical.
Beryllium Copper Safety Note
Beryllium and beryllium-containing alloys, including C17200 copper beryllium rod, require proper handling precautions during machining, grinding, or welding. Beryllium dust and fumes can cause serious respiratory disease (chronic beryllium disease, or CBD) if inhaled. Dry grinding or machining without respiratory protection is prohibited. All machining should be done with adequate wet methods or dust-controlled environments, in compliance with local occupational health and safety regulations. Finished beryllium copper bars in solid form (as supplied) do not present a respiratory hazard and can be handled normally. Contact Kalpataru for full MSDS documentation with every shipment.
Testing & Certifications for Beryllium Copper C17200 Bar
- Chemical analysis (OES/XRF) against ASTM B196 composition limits
- Mechanical testing (tensile, hardness, elongation) to confirm temper properties
- Positive Material Identification (PMI) on every lot
- EN 10204 3.1 Mill Test Certificates from NABL approved laboratory as standard
- EN 10204 3.2 (third party witnessed inspection) available on request via TUV, BV, Lloyds, SGS
- Dimensional inspection to diameter tolerance and straightness
Export Markets
Kalpataru Piping Solution exports Beryllium Copper round bar exporter grade certified material to clients across the Middle East, Europe, Southeast Asia, Africa, and the Americas, including key markets such as the United Arab Emirates, Saudi Arabia, Singapore, the United Kingdom, Germany, and the United States. For a shipment quote, contact our export team.
Other Available Stock of Beryllium Copper Round Bar UNS C17200
- C17200 Beryllium Copper Hexagon Bar
- CuBe2 / Copper Beryllium C17200 Round Bar
- Beryllium Copper C17200 Forged Round Bars
- Beryllium Copper Alloy C17200 Hot Rolled Bars
- Beryllium Copper C17200 Threaded Bars Exporter
- C17200 Beryllium Copper Polish Bars Stockholder
- UNS C17200 Beryllium Copper Bright Bar Stock
- SB196 Beryllium Copper C17200 Cold Rolled Bar
- Beryllium Copper C17200 Cold Finish Round Bar
- Beryllium Copper C17200 Hot Finished Round Bar
- CDA 172 Beryllium Copper Alloy Bar in Mumbai
- C17200 Beryllium Copper Hexagonal Bar Trader
- Beryllium Copper C172 Round Bar
- Beryllium Copper C17200 Rod Manufacturers
- Beryllium Copper Alloy 25 Round Bar Suppliers
- C17200 Beryllium Copper Round Bars in India
- Beryllium Copper CDA 172 Square Rods Stockist
- Beryllium Copper Triangle Bar Exporter
- CuBe2 UNS C17200 Rectangle Bar Dealer
- Beryllium Copper Alloy C17200 Hex Rods
- Beryllium Copper UNS C17200 Cold Drawn Bar
- Beryllium Copper Forged Rod in India
- ASTM B196 Beryllium Copper Half-Round Bar
- UNS C17200 Beryllium Copper Round Bar
FAQ's About UNS C17200 Beryllium Copper Round Bar
UNS C17200, also known as Alloy 25, CDA 172, or CuBe2, is the highest-strength commercial copper alloy available. It combines the corrosion resistance and conductivity of copper with strength levels comparable to high-alloy steel, achieved through age-hardening (precipitation hardening) heat treatment.
AT temper (TF00) is produced by solution annealing followed by precipitation hardening, giving tensile strength in the range of 1172 to 1379 MPa. HT temper (TH04) is produced by cold-working followed by precipitation hardening, giving the highest available strength of 1241 to 1448 MPa with slightly lower ductility. Most high-strength applications specify AT; HT is used where maximum hardness is needed.
Yes. C17200 has a magnetic permeability of less than 1.001, making it non-magnetic and suitable for instrumentation and MRI adjacent applications where steel would cause interference. It is also non-sparking, which makes it the preferred alloy for tools and components used in explosive atmospheres such as oil refineries and mining.
Primary applications include oil and gas drill collars and downhole tools (non-sparking, non-magnetic requirement), aerospace bushings and bearings, electronic spring contacts, mold and die components, resistance welding electrode holders (RWMA Class 4), and heavy-duty industrial bearings where galling resistance is critical.
Finished beryllium copper bar stock in solid form is safe to handle normally. Beryllium dust generated by machining, grinding, or welding is a respiratory hazard and subject to occupational health regulations. Always use wet machining methods or dust extraction systems and appropriate personal protective equipment when machining this material. MSDS documentation is available from Kalpataru with every supply.
Standard supply includes EN 10204 3.1 Mill Test Certificates with full chemical analysis, mechanical testing results, and heat/lot traceability. EN 10204 3.2 third party witnessed inspection is available via TUV, Bureau Veritas, Lloyds, and SGS.