beryllium copper tube high performance becu alloy tubes

What is a beryllium copper tube?

A beryllium copper tube is a copper alloy tube with beryllium as the main alloying element, also known as beryllium bronze tube. Beryllium copper alloy is the best advanced elastic material among copper alloys, featuring extremely high strength, hardness, elasticity, electrical conductivity, thermal conductivity, wear resistance, corrosion resistance and fatigue resistance. Through solid solution and aging heat treatment, it can achieve strength close to that of steel while maintaining the electrical and thermal conductivity advantages of copper, and is widely used in high-precision and high-demand industrial fields.

Main performance and features of beryllium copper tube

High strength and high hardness

Tensile strength ≥ 1000 MPa, hardness can reach 36-42 HRC (after heat treatment).

High conductivity and thermal conductivity

The conductivity is approximately 20-28% IACS, and the thermal conductivity is high. It is suitable for applications requiring high thermal and electrical conductivity.

Corrosion-resistant, fatigue-resistant, high-temperature resistant

It exhibits excellent corrosion resistance in the atmosphere, fresh water, seawater and various chemical media, has high fatigue strength, and excellent high-temperature stability.

Non-magnetic, shock-resistant, no spark generation

Suitable for explosion-proof and non-magnetic environments, such as mines, petroleum, precision instruments, etc.

The processing performance is excellent.

It can be used for turning, milling, drilling, welding, electroplating, etc., and supports customized processing of complex shapes.

Main applications of beryllium copper tube

Beryllium copper tubes are widely used in the following fields:

Aerospace: for high-strength, high-conductivity, corrosion-resistant components such as heat exchangers, submarine cable relay housings, etc.

Electronics and electrical appliances: such as micro-motor brushes, connectors, springs, relays, electrodes, high-precision connectors, etc.

Mold manufacturing: for injection molds, die-casting core rods, high-precision mold inserts, etc., to improve heat dissipation and lifespan.

Welding industry: resistance welding electrodes, welding tools, etc.

Petroleum, chemical, medical: corrosion-resistant pipe fittings, instrument parts, explosion-proof tools, etc.

Automobile, machinery: bearings, bearing shells, gears, wear-resistant bushings, etc.

Common grades of beryllium copper tube

C17200: High-strength type, with the best comprehensive performance and the widest range of applications, suitable for high-load, high elasticity, and high conductivity scenarios.

C17300: Easy-to-machine type, containing a small amount of lead, suitable for automatic lathe processing, used for precision parts.

C17500/C17510: High conductivity type, mainly used for electrodes, high conductivity connectors, heat sinks, etc.

Common size range of beryllium copper tube

Beryllium copper tubes (taking mainstream brands such as C17200, C17300, C17500 as examples) are widely used in precision electronics, molds, aerospace, and other fields. Their size range is extremely wide and can be customized according to actual needs. The following are the common size ranges of authoritative manufacturers and industry standards:

1. Regular beryllium copper tubes (general type)

Outer diameter (OD): 6 mm ~ 530 mm

Wall thickness (WT): 0.5 mm ~ 50 mm

Length: 1 m ~ 12 m (customizable to the required length)

Reference source: Yehan Industry (Shanghai) Co., Ltd., Shanghai Nonferrous Metals Network 3

2. Capillary beryllium copper tubes (precision type)

Outer diameter (OD): 0.3 mm ~ 3 mm

Wall thickness (WT): 0.03 mm ~ 0.3 mm

Tolerance: Tolerance of inner diameter or wall thickness can be achieved within 0.005 mm

Length: Customizable as per requirements

Reference source: Professional copper tube manufacturer on Douyin and capillary tube specification page 16

3. Thick-walled/ large-diameter beryllium copper tubes (industrial type)

Outer diameter (OD): up to 800 mm

Inner diameter (ID): up to 400 mm

Wall thickness: Customizable as per requirements, maximum up to 50 mm

Length: 1 m ~ 12 m

Standard 
GB/T1527-2006,JIS H3300-2006,ASTM B75M,ASTMB42,ASTMB111,ASTMB395,
ASTM B359,ASTM B188,ASTM B698,ASTM B640,etc
Shape
Round,Square,Rectangular,Oval,half-round
Hardness
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc
Surface
Mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required