Beryllium copper 25 (BeCu25)

■ Density ：
■ Features ：

■ Application ：
■ Origin ：

8.3
This copper alloy has highest strength and hardness in all of copper alloy. Furthermore it can be become high strength comparable to special steel by heat treatment, and it has excellent spring property,electric condustivity, wear resistance and corrosion resistance.
Welding machine parts, Aircraft parts, Mold
Japan

Mechanical properties(Typical Value)[Before heat treatment ]

Rockwell hardness (HRB)	Elongation (％)	Electronic conductiviity (％)	Thermal conductivity (W/M.K)
45-85	17～	25	109-130

Please refer mechanical properties after heat treatment as below.
Mechanical properties(Typical Value)[After heat treatment ]

Rockwell hardness (HRB)	Elongation (％)	Electronic conductiviity (％)	Thermal conductivity (W/M.K)
45-85	2～	25	109-130

Stock Size

Shape	Thickness	width	Length	Method of manufacturing	Remark
Round bar	Φ13　(-0.08/+0.08)	-	2000	Cold drawing	Already done heat treatment
Round bar	Φ16　(-0.08/+0.08)	-	2000	Cold drawing	Already done heat treatment
		-
Round bar	Φ3　(-0.05/+0.05)	-	2000	Cold drawing	Non heat treatment
Round bar	Φ4　(-0.05/+0.05)	-	2000	Cold drawing	Non heat treatment
Round bar	Φ5　(-0.05/+0.05)	-	2000	Cold drawing	Non heat treatment
Round bar	Φ6　(-0.05/+0.05)	-	2000	Cold drawing	Non heat treatment
Round bar	Φ8　(-0.05/+0.05)	-	2000	Cold drawing	Non heat treatment
Round bar	Φ10　(-0.05/+0.05)	-	2000	Cold drawing	Non heat treatment
Round bar	Φ12　(-0.05/+0.05)	-	2000	Cold drawing	Non heat treatment
Round bar	Φ13　(-0.08/+0.08)	-	2000	Cold drawing	Non heat treatment
Round bar	Φ16　(-0.08/+0.08)	-	2000	Cold drawing	Non heat treatment
Round bar	Φ18　(-0.08/+0.08)	-	2000	Cold drawing	Non heat treatment
Round bar	Φ20　(-0.08/+0.08)	-	2000	Cold drawing	Non heat treatment
Round bar	Φ25　(-0.10/+0.10)	-	2000	Hot extrusion	Non heat treatment
Round bar	Φ31　(-0.10/+0.10)	-	2000	Hot extrusion	Non heat treatment
Round bar	Φ37　(-0.10/+0.10)	-	2000	Hot extrusion	Non heat treatment
Round bar	Φ41　(-0.10/+0.10)	-	2000	Hot extrusion	Non heat treatment
Round bar	Φ46　(-0.10/+0.10)	-	2000	Hot extrusion	Non heat treatment
Round bar	Φ50　(-0.10/+0.10)	-	2000	Hot extrusion	Non heat treatment

Plate	42 (0/+3)	310	1050	Hot forging and milling surface	Non heat treatment
Plate	47 (0/+3)	310	1050	Hot forging and milling surface	Non heat treatment