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Cupro Nickel Bolts

In seawater, Copper Nickel 70 / 30 Bolts have excellent corrosion rates which remain low as long as the maximum design flow velocity is not exceeded. This velocity depends on geometry and pipe diameter. Copper Nickel 90 / 10 Bolts have high resistance to crevice corrosion, stress corrosion cracking and hydrogen embrittlement that can be troublesome to other alloy systems.
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In seawater, Copper Nickel 70 / 30 Bolts have excellent corrosion rates which remain low as long as the maximum design flow velocity is not exceeded. This velocity depends on geometry and pipe diameter. Copper Nickel 90 / 10 Bolts have high resistance to crevice corrosion, stress corrosion cracking and hydrogen embrittlement that can be troublesome to other alloy systems.


Cupro nickel Hex Bolts naturally form a thin protective surface layer over the first several weeks of exposure to seawater and this provides its ongoing resistance. As a supplier, stockiest, exporter and manufacturer of Cupro nickel Heavy Hex Bolts, we provide these Fasteners in custom-built thicknesses and sizes according to exact requirements of our well-regarded patrons. We offer Cupro nickel Square Bolts at economical prices to our consumers. Cupro nickel Round Head Bolts are available in different dimentions, size, grades & thickness as per the clients requirements. 


Standard Specification For Cupro Nickel Bolts

Dimension
DIN, ASTM, BS and all International Standards
Specification
ASTM / ASME SB 151, SB 152
Standard
Cupro Nickel 70/30 (C71500), Cupro Nickel 90/10(C70600)
Size
M10 to M100
Length
UPTO 5 METERS
Form
Hot Forged and Cold Forged


Cupro Nickel Bolts Equivalent Grades

STANDARDWERKSTOFF NR.UNS
Copper Nickel Cu-Ni 90/102.0872C70600
Copper Nickel Cu-Ni 70/302.0882C71500


Cupro Nickel 70 / 30 Bolts Chemical Composition

Grade
Element
Copper, Cu
70.0







Nickel, Ni
30.0








Cupro Nickel 90 / 10 Bolts Chemical Composition

Element
Content (%)
Cu
88.7
Fe
1.3
Ni
10.0


Copper Nickel Bolts Mechanical Properties

Properties
Metric
Imperial
Tensile strength, ultimate
372-517 MPa
54000-75000 psi
Tensile strength, yield (depending on temper)
88.0-483 MPa
12800-70100 psi
Elongation at break (in 381 mm)
45.0%
45.0%
Charpy impact
107 J
78.9 ft-lb
Machinability (UNS C36000 (free-cutting brass) = 100%)
20%
20%
Shear modulus
57.0 GPa
8270 ksi
Poisson’s ratio
0.34
0.34
Elastic modulus
150 GPa
21800 ksi


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Hong Hong Industry Group Co.,Ltd is one of the leading manufacturers and suppliers of Super Alloys in China. Our products include Corrision Resistant Alloy,High Temperature Alloy,Nickel Alloys,Precision Alloy and Super Stainless Steel. 
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