Cda 172 Beryllium Copper

 

Cda 172 is the most commonly utilized Copper Beryllium alloy and is notable for its highest strength and hardness compared to commercial copper alloys. Cda 172 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.Cda 172 also exhibits exceptional resistance to stress relaxation at elevated temperatures.

 

 

Be: 1.80-2.0%
Co+Ni: 0.20% Min.
Co+Ni+Fe: 0.60% Max.
Cu: Balance
Note: Copper plus additions equal 99.5% minimum.

 

 

Alloy	Temper	Tensile Strength N/mm2	Elongation %	Hardness HV	Electric Conductivity %IACS
Cda 172
	O	410-540	≥35	90-160	≥17
	1/4H	510-620	≥10	145-220	≥16
	1/2H	590-695	≥5	180-240	≥15
	H	685-835	≥2	210-270	≥15
	OT	1100-1380	≥3	325-400	≥22
	1/4HT	1180-1400	≥2	350-430
	1/2HT	1240-1440	≥2	360-440
	HT	1270-1480	≥1	380-450
	OM	685-885	≥18	220-270	≥17
	1/4HM	735-930	≥10	235-285
	1/2HM	815-1010	≥8	260-310
	HM	910-1110	≥6	295-345
	XHM	1100-1290	≥2	340-390
	XMHS	1210-1400	≥2	360-410

 

 

Rods/Bars/: ASTM B196; SAE J461,463; AMS 4533,4534,4535; AMS4650,4651;
RWMA Class 4, GOST 15835

Tubes: ASTM B251,643
Strips: ASTM B194, AMS4530,4532; SAE J461,463, GOST 1789
Sheets: ASTM B194
Wires: ASTM B197, AMS4725, SAE J461,463, JIS 3270, GOST 15834
Plates: ASTM B194, SAE J461,463; AMS4530,4533,4534,AMS4650,4651; RWMA Class 4.

European Standards: CuBe2, DIN 2.1247, CW101C to EN, BrB2

 

 

C17300/CuBe2Pb/CW102C/DIN 2.1248

C17500/CuCo2Be/CW104C/DIN 2.1285

C17510/CuNi2Be/CW110C/DIN 2.0850

CuCo1Ni1Be/CW103C

 

 

1. High thermal conductivity

2. High corrosion resistance, especially suitable for polyoxyethylene (PVC) products mold.

3. High hardness, wear resistance and toughness, as inserts used with mould steel and aluminium can make the mold play a highly efficient, prolong the service life.

4. Polishing performance is good, can achieve high mirror surface precision and complicated shape design.

5. Good tackiness resistance, easy to welding with other metal, easy to machining, there is no need additional heat treatment.

 

 

1. Beryllium Copper is widely used in mold core, injection mold insert, mold cavity, corrosion resistant die, die casting

2. machine head, watering the crossing thimble, the punch mould parts, hot runner system such as accessories,

3. stretching die, casting mould, die-casting mould, and corrosion resistant wear resistant parts such as bearings,

 

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