Hard Temper C17200 Alloy Strips For Bell Relay Contract Spring

Place of Origin China
Certification ISO,SGS
Model Number BE-CU Alloy 25 (C17200)
Minimum Order Quantity 50
Price 30USD
Packaging Details Coil+plywood case
Delivery Time 10~15days
Payment Terms L/C, T/T, Western Union
Supply Ability 200T/Month

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Product Details
Name BE-CU Alloy 25 (C17200) Strips Max Coil Wt. 2T
Thinnest Thick. 0.28mm Max Width 100mm
Standard ASTM B194, SAE J463, J461 Hardness 360-400HV
Safe Handling No Special Health Risk. Machining Property Good
Surface Bright/Polished Flatness Good
State XHMS
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C17200 Alloy Strips


ASTM B194 Beryllium Copper Strip


Hard Temper Beryllium Copper Strip

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Product Description

BE-CU Alloy 25 (C17200) Strips With Hard Temper for bell relay contract spring

Product Normal Description:

Product Name: BE-CU strips

Grade: Alloy 25(C17200)

Standard: ASTM B194, SAE J463, J461

Product Specification: 0.28mmx100mm

State: XHMS

Product Brand: CUBERYLLIUM®


CUBERYLLIUM® is a professional supplier of various beryllium copper alloys:

BE-CU Alloy 25(C17200) beryllium copper strip, beryllium copper coils supplier;

BE-CU Alloy 25(C17200) beryllium copper rod, beryllium copper bars supplier;

BE-CU Alloy 25(C17200)  beryllium copper sheet, beryllium copper plate, beryllium copper tube supplier;

BE-CU Alloy 25(C17200) beryllium copper wire supplier.


Chemical Composition of Beryllium Copper Alloy C17200 (CUBERYLLIUM ®-172):

Beryllium(Be): 1.80-2.00%

Cobalt(Co) + Nickel(Ni): 0.20% Min

Cobalt(Co) + Nickel(Ni) + Iron(Fe): 0.60% Max

Lead: 0.02% Max

Copper(Cu): Balance

Note: Copper plus additions equal 99.5% Minimum.


Typical Physical Properties of Beryllium Copper Alloy C17200(CUBERYLLIUM ®-172):

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


Temper Designations of Beryllium Copper Strip C17200(CUBERYLLIUM ®-172):

Cuberyllium Designation ASTM Mechanical and Electrical Properties of Copper Beryllium Strip
Designation Description Tensile Strength
Yield Strength 0.2% offset Elongation Percent HARDNESS
B or C Scale
Electrical Conductivity
(% IACS)
A TB00 Solution Annealed 410~530 190~380 35~60 <130 45~78HRB 15~19
1/2 H TD02 Half Hard 580~690 510~660 12~30 180~220 88~96HRB 15~19
H TD04 Hard 680~830 620~800 2~18 220~240 96~102HRB 15~19

Mill hardened
930~1040 750~940 9~20 270~325 28~35HRC 17~28
SHM TM05 1030~1110 860~970 9~18 295~350 31~37HRC 17~28
XHM TM06 1060~1210 930~1180 4~15 300~360 32~38HRC 17~28


Product Photos:

Hard Temper C17200 Alloy Strips For Bell Relay Contract Spring 0


Applications of Beryllium Copper Alloy C17200n(CUBERYLLIUM ®-172):

CUBERYLLIUM ®-172 is usually used for electrical industry, fasteners and industrial.

Electrical Industry: electrical switch and relay blades(switch parts, relay parts), clips, fuse clips, connectors, spring connectors, navigational indstruments, contact bridges, belleville washers;

Fasteners: washers, lock washers, fasteners, retaining rings, roll pins, screws, bolts;

Industrial: pump parts, springs, electrochemical, spline shafts, non sparking safety tools, flexible metal hose, housings for indtruments, bearings, bushings, valve seats, valve stems, disphragms, springs, welding equipment, rolling mill parts, valves, bourdon tubes, wear plates on heavy equipment, bellows.