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C17200 Copper (CDA 172)

Short Description:

C17200 is also known as Alloy 25 and is the most commonly utilized beryllium copper alloy and is notable for exhibiting the highest strength and hardness compared to commercial copper alloys. Its strength and hardness is similar to that of steel. C17200 copper's ultimate tensile and Rockwell hardness properties in a peak aged condition are in the 200 ksi range and RC 45 respectively (electrical conductivity 22% IACS minimum).

Bronze, Copper & Brass Round Bars
ParameterBronze Round Bar (C93200 / C95400)Copper Round Bar (C11000 / C12200)Brass Round Bar (C36000 / C38500)
Material TypeBearing Bronze / Aluminum BronzeElectrolytic Tough Pitch (ETP) / Phosphorus DeoxidizedFree-Cutting Brass / Architectural Bronze
StandardASTM B505 / B124ASTM B187 / B124ASTM B16 / B453
Diameter Range1/8" to 12" (3 mm to 305 mm)1/8" to 6" (3 mm to 152 mm)1/8" to 6" (3 mm to 152 mm)
Length13" (330 mm) or 6.5 ft (2 m) stock12 ft (3.66 m) or Custom12 ft (3.66 m) or Custom
Temper ConditionAs Cast / Annealed (O60)Soft (Annealed – O60), Half-Hard (H58), Hard (H80)Half-Hard (H02), Hard (H04)
Tensile Strength (Ultimate)35,000 – 103,000 psi (240 – 710 MPa) *30 – 38 ksi (210 – 260 MPa)48 – 65 ksi (330 – 450 MPa)
Yield Strength (0.5% Ext.)18,000 – 52,000 psi (125 – 360 MPa) *10 – 30 ksi (70 – 205 MPa)20 – 45 ksi (140 – 310 MPa)
Hardness (Brinell)65 – 220 HB *40 – 50 HB80 – 110 HB
Corrosion ResistanceExcellent (seawater) to Moderate *ExcellentGood
Typical ApplicationsBearings, bushings, worm gears, valve stems, pump shafts, heavy-duty pins, marine hardwareElectrical connectors, grounding rods, bus bars, heat exchanger tubes, decorative hardware, fastenersScrew machine parts, gears, nuts, bolts, valve bodies, fittings, instrument components, ornamental trim

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