C1990 C1990 P C1990 R - JIS H 3130-2018 - H2ABC

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Grade	C1990
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	High Elasticity Corrosion Resistance

C1990 Chemical Element Composition Content (%)

Component	Ti	More
Minimum Value	2.9	Cu+Ti≥99.5
Maximum Value	3.5	Cu+Ti≥99.5

C1990 Mechanical Properties

condition	Mark	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
Plate (P), strip (R); 0.10≤t≤0.6	C1990 P-1/4HM,C1990 R-1/4HM	1/4HM	735~930	≥575	≥10	HV ≥250
Plate (P), strip (R); 0.10≤t≤0.6	C1990 P-EHM,C1990 R-EHM	EHM	885~1080	≥785	≥5	≥280

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