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4977A – Beryllium Copper 20C Alloy
2-5 Ingot

4977B – 20C Beryllium Copper Alloy
2″ Cut Pieces

4964E – 4% Beryllium Copper Alloy
1/2″ and Down Irregular Shot

Beryllium Copper

Featuring Beryllium Copper Alloys in a Variety of forms; 4% Beryllium Copper, Beryllium Copper Alloys: 20C, 10C, 70C, 165C, 275C and more

Beryllium Copper, also known as Beryllium Bronze or Spring Copper, is a copper alloy with 0.5-3% Beryllium and sometimes other elements. The alloy combines high strength with non-magnetic and non-sparking qualities. It is typically used in applications where it is important to have to have a combination of excellent formability, high fatigue strength, good hysteresis properties and creep resistance. Beryllium Copper is also used where the requirements are for an alloy requiring corrosion resistance and relatively high electrical conductivity, or nonmagnetic behavior, coupled with high strength.

Beryllium Copper Alloy 20C, CDA 825, is our most popular offering in this category and contains 2% Beryllium, 0.5% Cobalt, and 0.25% Silicon. 20C Beryllium Copper (Belmont Product Code: 4977) is known for allowing excellent detail in your casting combined with high strength and an attractive color.

Forms

2 Section 5 lb Ingot, Cut Bar – Cross Section ¾” x ½” x 1” lengths, 2”lengths, ½” polished cubes, polished and unpolished shot

Featured Product Specifications

Product
Name
Belmont
Product
Code
CDA
#
Nominal
Composition
(%)
- - - Cu Be Co Cr Si Ti
4% Beryllium Copper 4962 - 96 4 - - - -
Beryllium Copper 20C 4977 82500 97.2 2.05 0.5 - 0.25 -
Beryllium Copper 10C 4972 - 96.8 0.65 2.55 - - -
Beryllium Copper 70C 4992 - 99.12 0.08 - 0.8 - -
Beryllium Copper 165C 4986 - 98 1.7 0.3 - - -
Beryllium Copper 275C 4971 82800 96.43 2.7 0.5 - 0.3 0.07
4% Beryllium Copper
Belmont Product Code 4962
CDA #
Nominal Composition (%)Cu - 96Be - 4
Beryllium Copper 20C
Belmont Product Code 4977
CDA # 82500
Nominal Composition (%)Cu - 97.2Be - 2.05Co - 0.5Si - 0.25
Beryllium Copper 10C
Belmont Product Code 4972
CDA #
Nominal Composition (%)Cu - 96.8Be - 0.65Co - 2.55
Beryllium Copper 70C
Belmont Product Code 4992
CDA #
Nominal Composition (%)Cu - 99.12Be - 0.08Cr - 0.8
Beryllium Copper 165C
Belmont Product Code 4986
CDA #
Nominal Composition (%)Cu - 98Be - 1.7Co - 0.3
Beryllium Copper 275C
Belmont Product Code 4971
CDA # 82800
Nominal Composition (%)Cu - 96.43Be - 2.7Co - 0.5Si - 0.3Ti - 0.07