DIN.2.1247 CuBe2 Beryllium Copper Wire For Spring Connectors

Price	USD 30/KG
MOQ	30kg
Delivery Time	10～15 Working days
Brand	CUBERYLLIUM®
Place of Origin	China
Certification	ISO ROHS
Model Number	DIN.2.1247
Packaging Details	Pack in coil+waterproofing winding film+Drier+Wooden Case
Payment Terms	L/C, T/T, Western Union
Supply Ability	50T/Month

Product Details

Product Specification

Place of Origin	China	Packaging Details	Pack in coil+waterproofing winding film+Drier+Wooden Case
CUBERYLLIUM® Grade	CUBERYLLIUM® 172	Model Number	DIN.2.1247
Supply Ability	50T/Month	Typical Application	Coil springs
Certification	ISO ROHS	Name	DIN.2.1247 Beryllium Bronze Round Wires
Surface	Bright	Shape for available	Rod or Coil Wire
Brand Name	CUBERYLLIUM®	Payment Terms	L/C, T/T, Western Union
Price	USD 30/KG	Delivery Time	10～15 Working days
ASTM	ASTM B197	Diameter Range	0.08mm～6mm
Minimum Order Quantity	30kg	Temper	A(TB00), 1/4H(TD01), 1/2H(TD02), 3/4H(TD03, H(TD04)
Package	in Coils

Product Description

DIN.2.1247 Beryllium Bronze Round Wires For Spring Connectors CuBe2 Copper Alloy

Product Description:

Name: Beryllium bronze round wires

Grade: DIN.2.1247

Specification: Diameter 3mm(+0/-0.05)

Surface: Bright

State: A(TB00), 1/4H(TD01), 1/2H(TD02), 3/4H(TD03, H(TD04)

Features: High strength and elestivity

Application: For spring connectors

CUBERYLLIUM® manufactures copper beryllium in several distinct compositions. These fall into two categories: alloys selected for high strength (Alloys 172,173,170) and alloys selected for high conductivity (Alloys 751,750,741). And Gost standard QBe2,QBe1.9Ti for Russia Market. Also Supply Master alloy : CuBeryllium-200; CuBeryllium-275);CuBeryllium-350 and Cuberyllium-400 to global factory.

CUBERYLLIUM ®-172 also named -C17200 (CDA 172) offers the strength properties of C17200.

Chemical Composition of DIN.2.1247 Beryllium Bronze Alloy:

CUBERYLLIUM® Brand	UNS-Number	Beryllium	Cobalt + Nickel	+Cobalt + Nickel + Iron	Pb	Copper
Cuberyllium-C172	C17200	1.80-2.00	0.20 min	0.6 max	0.02 Max	Balance

Copper plus additions equal 99.5% Min.

Typical Physical Properties of DIN.2.1247 Beryllium Bronze Alloy:

Density (g/cm3):	8.36
Density before age hardening (g/cm3):	8.25
Elastic Modulus (kg/mm2 (103)):	13.4
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

Mechanical and Electrical Properties of DIN.2.1247 Beryllium Bronze Round Wires:

Alloy	Temper (*)	Heat Treatment	Tensile Strength Mpa	Elongation percent	Electrical Conductivity percent IACS
CUBERYLLIUM 172	A	/	400～580	30-60	15-19
	(TB00)
	1/4 H	/	570～795	3~25	15-19
	(TD01)
	1/2 H	/	710～930	2~15	15-19
	(TD02)
	3/4 H	/	840～1070	2~8	15-19
	(TD03)
	H	/	915～1140	1~6	15-19
	(TD04)
CUBERYLLIUM 172	AT	3 hr 315℃	1050~1380	3 min	22-28
	(TF00)
	1/4 HT	2 hr 315℃	1150~1450	2 min	22-28
	(TH01)
	1/2 HT	1.5hr 315℃	1200~1480	2 min	22-28
	(TH02)
	3/4 HT	1.0 hr 315℃	1250~1585	2 min	22-28
	(TH03)
	HT	1.0hr 315℃	1300~1585	1 min	22-28
	(TH04)

International Specification of DIN.2.1247 Beryllium Bronze Alloy:

Product Type	Temper Type
Bar	ASTM B196
Bar	Military Mil-C-21657
Rod	ASTM B196
Rod	Military Mil-C-21657
Wire	ASTM B197, AMS4725, SAE J461,463, RWMA Class 4
European Standards	CuBe2, Alloy 25, BrB2, 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 SEA)

RWMA: Resistance Welder Manufacturers' Association

Note: Unless otherwise specified, material will be produced by ASTM.

Key Technology of Beryllium Copper(Heat treatment)

Heat treatment is the most important process for this alloy system. While all copper alloys are hardenable by cold working, beryllium copper is unique in being hardenable by a simple low temperature thermal treatment. It involves two basic steps. The first is called solution annealing and the second, precipitation or age hardening.

Solution Annealing

For the typical alloy CuBe2Pb) the alloy is heated between 720°C and 860°C. At this point the contained beryllium is essentially “dissolved” in the copper matrix (alpha phase). By rapidly quenching to room temperature this solid solution structure is retained. The material at this stage is very soft and ductile and can be readily cold worked by drawing, forming rolling, or cold heading. The solution annealing operation is part of the process at the mill and is not typically used by the customer. Temperature, time at temperature, quench rate, grain size, and hardness are all very critical parameters and are tightly controlled by ohmalloy.

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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