TH04 DIN2.1248 Beryllium Copper Bar ASTM B196 QQ-C-530
DIN2.1248 Copper Beryllium Bar By Standard ASTM B196, QQ-C-530 For Industrial Application
Product Description:
Name: Copper beryllium bar
Grade: DIN2.1248
Size: according customers' requirement
End Product Form: Rods/ Bars
Standard: ASTM B196, QQ-C-530
State of product: A(TB00),H(TD04),AT(TF00),HT(TH04)
Processing: Seamless / Welding
Feature: With high strength and high conductivity
Package: Pack in coil+waterproofing winding film+Drier+Wooden Case
CUBERYLLIUM ®-173 also named -C17300 (CDA 173) offers the strength properties of C17300 with the added benefit of being “free machining”. C17300 rod and wire contain a small amount of lead to provide an alloy tailored for automatic machining operations. Lead promotes formation of finely divided chips thus extending cutting tool life.
Chemical Composition of DIN2.1248 Copper Beryllium Alloys:
| CUBERYLLIUM® Brand | UNS-Number | Beryllium | Cobalt + Nickel |
+Cobalt + Nickel + Iron |
Pb | Copper |
| Cuberyllium-C173 | C17300 | 1.80-2.00 | 0.20 min | 0.6 max | 0.2～0.6 | Balance |
Note: Copper plus additions equal 99.5% minimum.
Physical Properties of DIN2.1248 Copper Beryllium Alloys:
- High Strength
- High Hardness
- High Elastivity
- Superior Fatigue Resistance
- Superior Abrasion Resistance
- Superior Mouldability and Isotropy
Application of DIN2.1248 Copper Beryllium Alloys:
- Relays
- Connectors/sensors
- Temperature control switch
- Switch/ micro switch production/ micro-motors brush
- Strong springs/ the thermostat spring/ all kinds of spring piece
Mechanical and Electrical Properties of DIN2.1248 Copper Beryllium Bar:
| Temper(*) | Diameter | Heat Treatment | Tensile Strength ksi |
Elogation Percent (Min) |
Electrical Conductivity Percent IACS |
Hardness Rockwell B or C Scale |
|---|---|---|---|---|---|---|
| A(TB00) | ALL SIZE | / | 400~600 | 30 | 15~19 | B45~85 |
H(TD04) |
5~10 | / | 660~900 | 5 | 15~19 | ＞B88 |
| ＞10~25 | / | 620~860 | 5 | 15~19 | ||
| ＞25 | / | 590~830 | 5 | 15~19 | ||
| AT(TF00) | ALL SIZE | 3 hr 320°C | 1100~1380 | 2 | 22~28 | C35~42 |
| HT(TH04) | 5~10 | 2 hr 320°C | 1200~1550 | 1 | 22~28 | C37~45 |
| ＞10~25 | 1150~1520 | 1 | 22~28 | C36~44 | ||
| ＞25 | 1120~1480 | 1 | 22~28 | C35~44 |
Product Photo:
DIN2.1248 Copper Beryllium Alloys International Specification:
Rods/Bars/Tubes: ASTM B196, QQ-C-530
Wires: ASTM B197, QQ-C-530
European Standards: CuBe2Pb, Alloy M25, UNS.C17300, DIN.2.1248, CW102C to EN
Note:
ASTM: American Society for Testing and Materials
SAE: Society of Automotive Engineers
AMS: Aerospace Materials Specification(Published by SEA)
RWMA: Resistance Welder Manufacturers' Association
Note: Unless otherwise specified, material will be produced by ASTM.
Key Technology of Beryllium Copper(Heat treatment)
Age Hardening
Age hardening significantly enhances the material’s strength. This reaction is generally carried out at temperatures between 260°C and 540°C depending on alloy and desired characteristics. This cycle causes the dissolved beryllium to precipitate as a beryllium rich (gamma) phase in the matrix and at the grain boundaries. It is the formation of this precipitate which causes the large increase in material strength. The level of mechanical properties attained is determined by the temperature and time at temperature. It should be recognized that beryllium copper has no room temperature aging characteristics.
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