C17200 Beryllium Copper Square & Round Bar
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
| Density (g/cm3) | 8.36 |
| Density before age hardening (g/cm3) | 8.25 |
| Elastic Modulus (kg/mm2 (103)) | 13.40 |
| Thermal Expansion Coefficient (20 °C to 200 °C m/m/°C) | 17 x 10-6 |
| Thermal Conductivity (cal/(cm-s-°C)) | 0.25 |
| Melting Range (°C) | 870-980 |
(Temper and Tensile Strength Reference Table As Bellowing)
Temper and Tensile Strength Reference
FAQ
1. What's the minimum quantity customer can order?
If we have your size in stock, we can provide any quantity you
want.
If we do not have, for spool wire, we can produce 1 spool, about
2-3kg. For coil wire, 25kg.
2. How can you pay for small sample amount?
We have account, wire transfer for sample amount also ok.
3. Customer do not have express account. How will us arrange the
delivery for sample order?
Just need to provide your address information, we will check the
express cost, you can arrange the express cost together with sample
value.
4. What's our payment terms?
We can accept LC T/T payment terms, it also depending on delivery
and total amount. Let's talk more in details after getting your
detailed requirements.
5. Do you provide free samples?
If you want several meters and we have stock of your size, we can
provide, customer need to bear the International express cost.
6. What's our working time?
We will give you reply through email/phone Online contact tool
within 24 hours. No matter working day or holidays.
