RWMA Class 4 Beryllium Copper Alloys With 1.8% Be/Cu Alloy 25 Strip
Mateial Introduction of RWMA Class 4 Beryllium Copper Alloys/Alloy 25:
RWMA Class 4, BERYLLIUM-COPPER has extremely high hardness, and is recommended for projection, flash and butt-welding dies. It has lower conductivity than Class 3 alloy but it is harder and more wear resistant. It should be considered where there is concern with high-pressure density and severe wear, but where heating, due to its low conductivity, is no excessive.
It is used frequently in the form of inserts, die facings, and seam welder bushings. It is available in the annealed condition, which is more readily machined, and then subsequently heat-treated.
It is also Known as CuBe2, UNS. C17200.

More Details About RWMA Class 4 Material:

Cuberyllium's Product Range:
Cuberyllium is one of the eminent manufacturer and exporter of high Grade Beryllium Copper Alloy.
Our product range includes a wide range of beryllium copper alloys, rwma beryllum copper alloys, such as beryllium copper strip, beryllium copper rod, beryllium copper plate, beryllium copper tube, beryllium copper wire, C17200 copper alloy, C17300 copper alloy, C17500 copper alloy, C17510 copper alloy, rwma class 3 copper alloy, rwma class 4 copper alloy. Our valued clients can avail from us an approved quality range of beryllium copper alloys.

Physical Properties of RWMA Class 4/Alloy 25 Beryllium Copper Alloy:
Density (g/cm3): 8.36
Density before age hardening (g/cm3): 8.25
Elastic Modulus (kg/mm2 (103)): 13.40
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

Chemical Composition of RWMA Class 4/Alloy 25 Beryllium Copper Alloy:

International Specification of RWMA Class 4/Alloy 25 Beryllium Copper Alloy:
C17200 Beryllium Copper Alloys Rods/Bars/Tubes: ASTM B196,251,463; SAE J461,463; AMS 4533,4534,4535; AMS4650,4651;
RWMA Class 4
C17200 Beryllium Copper Alloys Strips: ASTM B194, AMS4530,4532; SAE J461,463
C17200 Beryllium Copper Alloys Sheets: ASTM B194
C17200 Beryllium Copper Alloys Wires: ASTM B197, AMS4725, SAE J461,463
C17200 Beryllium Copper Alloys Wires: ASTM B194, SAE J461,463; AMS4530,4533,4534,AMS4650,4651; RWMA Class 4.
European Standards: CuBe2, DIN 2.1247, CW101C to EN

Product Photo of RWMA Class 4/Alloy 25 Beryllium Copper Alloy Strips:


Application of RWMA Class 4/Alloy 25 Beryllium Copper Alloy:
Alloy 25(C17200) is used to make oil drilling components such as MWD/LWD tools, drill collars and subs, flex subs and shafts, drill rods, drill bit bushings, valve components, pump shafts and fasteners. Alloy 25 strip is used to make essential parts in consumer electronics like pressure sensor bellows, burn-in and test socket contacts, computer processor socket contacts and electromagnetic shielding gaskets.