C71640 - ASTM B552-2019

Grade	C71640
Corresponding Standard	ASTM B552-2019 Standard Specification for Seamless and Welded Copper–Nickel Tubes for Water Desalting Plants
Classification	Copper and Copper Alloys

C71640 Chemical Element Composition Content (%)

Component	Fe	C ^③	Mn	S ^③	Ni ^②	Pb ^③	Zn ^③	More
Minimum Value	1.7	-	1.5	-	29	-	-	Cu:余量(包括Ag)
Maximum Value	2.3	0.06	2.5	0.03	32	0.05	1	Cu:余量(包括Ag)

C71640 Mechanical Properties

condition	Mark	Heat Treatment or Condition	Tensile Strength σ_b Mpa
Tube	C71640-H55	Light drawn or light cold worked (H55)	≥515
Tube	C71640-WC55	Welding and light cold processing (WC55)	≥515
Tube	C71640-WO61	Welding and annealing (WO61)	≥435
Tube	C71640-O61	Annealing (O61)	≥435

Approximate Comparison Table cupronickel

China	United States		International Organization for Standardization		Germany		European Standard		Russia	United Kingdom
GB	ASTM	UNS	ISO	Numerical Grade	DIN EN/DIN	W-Nr.	EN	Numerical Grade	GOST	Commercial Grade	BS EN/BS
BFe30-2-2	66Cu-30Ni-2FE-2Mn	C71640	CuNi30Fe2Mn2	C71640	CuNi30Fe2Mn2	2.0883 C71640	CuNi30Fe2Mn2	CW353H	МНЖМц30-2-2	CN108	C71640

C71640 Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!