Copper Nickel Fasteners
What’s the lifespan of Copper Nickel fasteners in seawater?
Copper Nickel fasteners made of 90/10 or 70/30 alloys can last upto 20 to 30+ years in seawater environments. Below factors can affect the lifespan of cuni bolts:
- Low to moderate flow seawater
- Good design
- Galvanic isolation
- Clean welding and installation
Fastener online is leading Copper nickel fastener manufacturer in India, widely used in marine and offshore environments due to their corrosion resistance, strength, and biofouling resistance.
Table of Content
Copper Nickel Fasteners Specification
Copper Nickel Bolt Sizes
M2 to M24
Cuni 90/10 Screw Size
3/6″ to 2″
CDA 706 Nuts Size
M3 – M56 | 3/6″ to 2″
Copper Nickel 70/30 Washers Size
M3 – M56 | 3/6″ to 2″
Copper Nickel 90/10 Machine Screws Size
M1.6 – M12
ISO Standard
ISO 4029 / ISO 7045 / ISO 4762
ASTM F468 copper nickel fasteners Length
3 mm to 200 mm
Cu-Ni Fasteners Weldability
Excellent
CuNi 70/30 Heavy Hex Bolts Specific Heat
377 J/kg·K
70/30 Cupro Nickel Threaded Studs Threads
METRIC / UNF / BSW / UNC / BSF
Custom Sizes
Copper nickel fasteners manufacturer in India in different sizes and dimensions
ASTM F468 copper nickel self tapping screws Standards
DIN 934, 931, 7991, 933, 125, 976 / ASME B18.2.1, B18.3
Origin
Korean / Indian / Russian / European
CDA 706 Studs Type
Fully or Fine threaded / Double-End / Tap-End
WNR 2.0872 wood screws Condition
Threading / Cold Drawn
Manufacturing Technique
CNC Machined / Cold forging / Hot forging
Cuni 70/30 anchor bolts Finish
Phosphating / HDG / Passivation
Cupro Nickel Screws Thread Pitch
Coarse Threads / Fine Threads
CDA 706 hex head bolts Head Types
- Button head
- Flat
- Phillips Drive
- Slotted hex washer
- Socket cap head
- Hex washer head
- Slotted Drive
Copper nickel 2.0872 Bolt Drive Style
- Pan
- Cross
- Oval
- Round
- Hex
- Truss
- Torx
UNS C70600 screws Thread Class
- 4G
- 3G
- Class 2A (Medium fit)
- 2G
- Class 3A (Tight fit)
- Class 1A (Loose fit)
- 5 ONF
Packaging
- Carton Box
- Wooden Pallet
- Blister Packs
- Wooden Cases
Value Added Services
- Color Coding
- Head Shank Drilling
- Head Painting
- Laser Etching
Certificate
- 100% Radiography Test
- Raw Materials Certificate
- EN 10204/3.1B
- UT and PMI Test
| Product | Price in USD (Pcs) |
Price in Dirham (Pcs) |
Price in Euro (Pcs) |
|---|---|---|---|
| M24 Cuni 90/10 Heavy Hex Nut, DIN 934 | US $45.67 | 167.74 AED | € 39.96 |
| 5/8 X 80MM Copper Nickel 70/30 Bolts and Nuts | US $53.27 | 195.65 AED | € 46.62 |
| M8 X 25 90/10 Cupro nickel bolts, DIN 931, UNF | US $38.92 | 142.95 AED | € 34.06 |
Mail us at sales@rishabhsteelindustries.com to get a quote of copper nickel fasteners. We are Stockist and Exporter of Cupro nickel 70/30 bolts which are widely used in high-chloride and brine environments.
Cupro Nickel Marine Fasteners Grades
Cuni Hex Bolts Chemical composition
| Grade | Manganese | Copper | Iron | Nickel | Lead | Zinc |
|---|---|---|---|---|---|---|
| CuNi 90/10 | 1.0 max | 88.6 min | 1.8 max | 9-11 max | .05 max | 1 max |
| CuNi 70/30 | 1 max | 65.0 min | 0.4-1.0 | 29-33 | .05 max | 1 max |
Cupronickel Screws Mechanical properties
Tensile Strength
50000 psi
Yield Strength
20000 psi
Elongation
30 %
Cu ni alloy Hex Nuts Physical properties
| Properties | Value |
|---|---|
| Density | 8.94 g/cm3 |
| Poisson’s ratio | 0.325 |
| Thermal expansion co-efficient (@20-300°C/68-572°F) | 16.2 µm/m°C |
| Thermal conductivity | 32.9 W/mK |
| Shear modulus | 57.2 GPa |
ASTM F468 copper nickel Studs Equivalent
| STANDARD | UNS | DIN |
|---|---|---|
| Copper Nickel 90/10 | C70600 | 2.0872 |
| Copper Nickel 70/30 | C71500 | 2.0882 |
Copper Nickel 90/10 Fasteners German Standards
| German Standard | Types |
|---|---|
| DIN 186 | Square Neck Head |
| DIN 529 A | Anchor Bolts |
| DIN 479 | Square Bolts |
| DIN 580 | Lifting Eye Bolts |
| DIN 601 | Hex bolts with nuts |
| DIN 444 | Eye Bolts |
| DIN 261 | T Head bolts |
Manufacturing Range of Copper Nickel 70/30 Fasteners
| Sizes | Length | Standards | Threads | Finish |
|---|---|---|---|---|
| M3 – M64 | 100 mm to 1000mm | ASTM B151 DIN 931 DIN 934 ISO 7089 |
Metric BSW BSF UNF UNC |
Plain Polished Passivation Nickel Plated Tinned |
Cupro nickel 90/10 Stud Bolt Size Chart
| NPS | DIA bolts (in) | Length (RTJ) | Length (RF) | Number of bolts |
|---|---|---|---|---|
| 1/2 | 1/2 | 55 | 4 | |
| 3/4 | 1/2 | 65 | 4 | |
| 1 | 1/2 | 75 | 65 | 4 |
| 1 1/4 | 1/2 | 85 | 70 | 4 |
| 1 1/2 | 1/2 | 85 | 70 | 4 |
| 2 | 5/8 | 95 | 85 | 4 |
| 2 1/2 | 5/8 | 100 | 90 | 4 |
| 3 | 5/8 | 100 | 90 | 4 |
| 3 1/2 | 5/8 | 100 | 90 | 8 |
| 4 | 5/8 | 100 | 90 | 8 |
| 5 | 3/4 | 110 | 95 | 8 |
| 6 | 3/4 | 115 | 100 | 8 |
| 8 | 3/4 | 120 | 110 | 8 |
| 10 | 7/8 | 125 | 115 | 12 |
| 12 | 7/8 | 135 | 120 | 12 |
| 14 | 1 | 145 | 135 | 12 |
| 16 | 1 | 145 | 135 | 16 |
| 18 | 1.1/8 | 160 | 145 | 16 |
| 20 | 1.1/8 | 170 | 160 | 20 |
| 24 | 1.1/4 | 185 | 170 | 20 |
| d | m max. | e min. | s max. |
|---|---|---|---|
| M2 | 1.6 | 4.32 | 4 |
| M2.5 | 2 | 5.45 | 5 |
| M2.6 | 2 | 5.45 | 5 |
| M3 | 2.4 | 6.01 | 5.5 |
| M3.5 | 2.8 | 6.58 | 6 |
| M4 | 3.2 | 7.66 | 7 |
| M5 | 4 | 8.79 | 8 |
| M6 | 5 | 11.05 | 10 |
| M7 | 5.5 | 12.12 | 11 |
| M8 | 6.5 | 14.38 | 13 |
| M10 | 8 | 18.9 | 17 |
| M12 | 10 | 21.1 | 19 |
| M14 | 11 | 24.49 | 22 |
| M16 | 13 | 26.75 | 24 |
| M18 | 15 | 29.56 | 27 |
| M20 | 16 | 32.95 | 30 |
| M22 | 18 | 35.03 | 32 |
| M24 | 19 | 39.55 | 36 |
| M27 | 22 | 42.2 | 41 |
| M30 | 24 | 50.85 | 46 |
| M33 | 26 | 55.37 | 50 |
| M36 | 29 | 60.79 | 55 |
| M39 | 31 | 66.44 | 60 |
| M42 | 34 | 71.3 | 65 |
| M45 | 36 | 76.95 | 70 |
| M48 | 38 | 82.6 | 75 |
| M52 | 42 | 88.25 | 80 |
| M56 | 45 | 93.56 | 85 |
| M60 | 48 | 99.21 | 90 |
| M64 | 51 | 104.86 | 95 |
| M68 | 54 | 110.51 | 100 |
| M72 | 58 | 116.16 | 105 |
| M76 | 61 | 121.81 | 110 |
| M80 | 64 | 127.46 | 115 |
| M90 | 72 | 144.08 | 130 |
| M100 | 80 | 161.02 | 145 |
| Bolts Size | B | A | C | |
|---|---|---|---|---|
| Max | Min | |||
| 1/4" | 5/16 | 3/4 | 0.08 | 0.051 |
| 5/16" | 3/8 | 7/8 | 0.104 | 0.064 |
| 3/8" | 7/16 | 1 | 0.104 | 0.064 |
| 7/16" | 1/2 | 1-1/4 | 0.104 | 0.064 |
| 1/2" | 9/16 | 1-3/8 | 0.132 | 0.086 |
| 9/16" | 5/8 | 1-1/2 | 0.132 | 0.086 |
| 5/8" | 11/16 | 1-3/4 | 0.16 | 0.108 |
| 3/4" | 13/16 | 2 | 0.177 | 0.122 |
| 7/8" | 15/16 | 2-1/4 | 0.192 | 0.136 |
| 1" | 1-1/16 | 2-1/2 | 0.192 | 0.136 |
| 1-1/8" | 1-1/4 | 2-3/4 | 0.192 | 0.136 |
| 1-1/4" | 1-3/8 | 3 | 0.192 | 0.136 |
| 1-3/8" | 1-1/2 | 3-1/4 | 0.213 | 0.153 |
| 1-1/2" | 1-5/8 | 3-1/2 | 0.213 | 0.153 |
| Type | Sizes |
|---|---|
| Hex bolts & screws | M3 – M36 (or 1/8" – 1.5") |
| Hex Nuts | M3 – M36 |
| Washers (plain, spring) | M3 – M64 |
| Threaded rods | Up to M42 or 2" diameter |
| Stud bolts | Up to 2” diameter |
| Set screws | M3 – M20 |
| Socket head screws | M3 – M24 |
| Machine screws | M1.6 – M12 |
Cu-Ni bolts
90-10 copper-nickel hex bolts
Cupro-Nickel CDA 706 square bolts
Cupro Nickel heavy hex bolt
70/30 Copper Nickel eye bolts
cuni 70/30 anchor bolts
ASTM F468 UNS C71500 nuts
90/10 Copper Nickel hex nuts
Cu Ni 70 30 heavy hex nuts
Copper nickel 2.0872 lock nut
cuni flange lock nut
ASME SF468 copper nickel square nut
90/10 Cupro Nickel screw
Copper Nickel socket head cap screw
ASTM F468 copper nickel self tapping screws
CDA 715 self drilling screws
ASTM F468 UNS C70600 hex cap screws
90 10 Cu Ni socket cap screws
70 30 copper nickel machine screws
WNR 2.0872 wood screws
Types of Copper nickel Washers
Cu-Ni 70/30 washer
WNR 2.0882 flat washer
Copper Nickel 90/10 plain washer
cuni 90/10 countersunk washer
Copper Nickel 70/30 studs
cupronickel stud bolt
UNS C71500 threaded rod
70/30 Cupro Nickel threaded stud
CDA 706 double end stud bolts
UNS C70600 fully threaded studs
Application of UNS C71500 heavy hex nuts
Exporter of DIN 2.0882 Washer in below contries
| Country | Transit Time |
|---|---|
| UAE | 3–5 days |
| Singapore | 7–10 days |
| Europe | 20–30 days |
| Australia | 20–30 days |
| South Africa | 15–20 days |
| Brazil | 30–40 days |
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