Copper Nickel 70/30 Fasteners

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Copper Nickel 70/30 Fasteners Manufacturer and Supplier in Hamilton, New Zealand

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Aria Fasteners, a prominent manufacturer and supplier located in Hamilton, New Zealand, has built a solid reputation for delivering top-notch **Copper Nickel 70/30 Fasteners** designed for tough marine and industrial settings. With a keen emphasis on precision craftsmanship, durability, and resistance to corrosion, the company caters to various sectors, including shipbuilding, desalination, offshore oil and gas, and chemical processing. Their state-of-the-art production capabilities and rigorous quality assurance measures guarantee that each fastener performs reliably even in the harshest conditions. Backed by technical know-how and a customer-first approach, Aria Fasteners remains a go-to source for sturdy and long-lasting fastening solutions.

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The Copper Nickel 70/30 Fasteners are crafted from an alloy that consists of about **70% copper and 30% nickel**, with small amounts of iron and manganese added to boost strength and corrosion resistance. This alloy is known for its impressive resistance to seawater, erosion, stress corrosion cracking, and biofouling. In terms of mechanics, these fasteners provide moderate tensile strength, high ductility, and reliable toughness across varying temperatures. Their stable and uniform microstructure ensures consistent performance in high-pressure and high-salinity environments, making them ideal for long-term industrial applications.

Copper Nickel 70/30 Fasteners Chemical Composition

Grade	Cu	Mn	Pb	Ni	Fe	Zn
Copper Nickel	65.0 min	1 max	.05 max	29-33	0.4-1.0	1 max

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Copper Nickel 70/30 Fasteners 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

Copper Nickel 70/30 Fasteners Specification

Grade	Cupro Nickel
Specifications	ASTM / ASME SB 151, SB 152
Standards	DIN, ASTM, BS and all International Standards
Length	UPTO 5 METERS
Size	M4 To M100 \| Custom Sizes
Form	Nuts, Bolts, Washers, Screw
Types	Hex Bolts, Flange Bolts, Hex Head Bolts, Lag Bolts, Square Bolts, Eye Bolts, U Bolts, T Bolts, Counter sunk Bolts, Hex Head Nut, Eye Nut, Dome Nut, Coupling Nut, Square Nut, Acorn Nut, Hex Head Cap Screws, Socket Set Screws, Anchor Screws, Socket Head Screws, Concrete Screws, Shoulder Screws, Threaded Screws, Machine Screws, Machine Washers, Flat Washer, Star Washers, Sealing Washer, Lock Washer etc.

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Copper Nickel 70/30 fasteners are widely employed in marine applications such as in ships and offshore structures because of its excellent resistance to corrosion in marine environment. They are used in desalination plants because of their resistance to chloride induced corrosion. Furthermore, these fasteners are used in chemical processing industries, heat exchangers, and other industrial uses where the fasteners are needed to perform for the long-term under severe conditions.

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Types of Copper Nickel 70/30 Fasteners

These Copper Nickel 70/30 Fasteners are extensively used in situations that demand outstanding corrosion resistance, thermal stability, and durability. You’ll often find them in **shipbuilding, seawater cooling systems, offshore platforms, desalination plants, and marine pump assemblies**, where constant exposure to salty environments calls for exceptional durability. They’re also utilized in **heat exchangers, condensers, and seawater piping networks**, ensuring secure connections that withstand erosion and metal fatigue. Beyond the marine industry, they play a crucial role in chemical processing and coastal infrastructure projects, where reliable, corrosion-resistant fastening solutions are essential for success.