Grade C1700
Other Names
Corresponding Standard JIS H 3130-2018
Copper beryllium alloy, copper titanium alloy, phosphor brozne, copper-nickel-tin alloy and nickel silver sheets, plates and strips for springs
Classification Copper and Copper Alloys
Properties Elasticity Corrosion Resistance Fatigue Resistance
C1700 Chemical Element Composition Content (%)
Component Be More
Minimum Value 1.6 Cu+Be+Ni+Co+Fe≥99.5;Ni+Co≥0.2;Ni+Co+Fe≤0.6
Maximum Value 1.79
C1700 Mechanical Properties
condition Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Hardness
HBW
Plates (P), Strips (R); 0.10≤t≤1.6 C 1700 P-O,C1700 R-O Annealing (O) 410~540 - ≥35 HV
90~160
Plates (P), Strips (R); 0.10≤t≤1.6 C 1700 P-1/4H,C1700 R-1/4H 1/4 Hard (1/4H) 510~620 - ≥10 145~220
Plates (P), Strips (R); 0.10≤t≤1.6 C 1700 P-1/2H,C1700 R-1/2H 1/2 Hard (1/2H) 590~695 - ≥5 180~240
Plates (P), Strips (R); 0.10≤t≤1.6 C 1700 P-H,C1700 R-H Hard (H) 685~835 - ≥2 210~270
Plates (P), Strips (R); 0.10≤t≤1.6 C 1700 P-O,C1700 R-O Annealing (O) ≥1030 ≥890 ≥3 ≥310
Plates (P), Strips (R); 0.10≤t≤1.6 C 1700 P-1/4H,C1700 R-1/4H Cold work hardening 1/4 hard (1/4H) ≥1100 ≥930 ≥2 ≥330
Plates (P), Strips (R); 0.10≤t≤1.6 C 1700 P-1/2H,C1700 R-1/2H Cold work hardening 1/2 hard (1/2H) ≥1180 ≥1000 - ≥345
Plates (P), Strips (R); 0.10≤t≤1.6 C 1700 P-H,C1700 R-H Cold work hardening hard (H) ≥1230 ≥1070 - ≥360
Approximate Comparison Table Processing of High Copper Alloys
China Japan United States International Organization for Standardization Germany Russia United Kingdom
GB ISC JIS ASTM UNS ISO Numerical Grade DIN EN/DIN W-Nr. GOST Commercial Grade BS EN/BS
TBe1.7
QBe1.7
T17700 C1700
C17000
98Cu-1.7Be-.3Co C17000 CuBe1.7 C17000 CuBe1.7 C17000
2.1245
БрБНТ1.7 CB101 C17000

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