CU-NI 90/10 WASHERS

Parmar Steel offers a comprehensive range of copper-nickel fasteners, including CU-NI 90/10 washers, known for their exceptional corrosion resistance and durability in marine environments. These washers are crafted with precision using high-quality CU-NI 90/10 alloy, ensuring superior performance in challenging conditions. Ideal for use in seawater applications, they effectively withstand erosion and biofouling, making them a preferred choice in shipbuilding, offshore oil platforms, and desalination plants. Parmar Steel commitment to stringent quality standards ensures that each washer delivers reliability and longevity, meeting industry specifications effortlessly. Whether for new installations or maintenance projects, these washers provide peace of mind, ensuring secure fastening and protection against galvanic corrosion, thereby extending the lifespan of critical components.

Grade Copper Nickel Cu-Ni 90/10 - (UNS C70600), Cu-Ni 70/30 - (UNS C71500)
Standard ASTM / ASME SB 151, SB 152
Range M10 TO M100
Length UPTO 5 METERS
Surface Coating Hot Dipped Galvanizing Copper Nickel Fasteners, Phosphate Copper Nickel Fasteners, Teflon Copper Nickel Fasteners, Ptfe Coated Copper Nickel Fasteners, Xylon Copper Nickel Fasteners, Zinc Copper Nickel Fasteners, Cadmium Copper Nickel Fasteners

CU-NI 90/10 HEAD HEX BOLTS SIZE IN MM

Copper Nickel 70/30 Bolt Type
SIZE
PROPERTY CLASS
TENSILE STRENGTH
STANDARD
Copper Nickel 70/30 Hex Head Bolt / Screws
M4 to M80
10.9
1040N / mm2 min
ISO 4017 (Full Thread)
ISO 4014 (Half Thread)

Screws Type
SIZE
GRADE
ASME
ISO
ASTM
Socket Head Cap Screws
M1.6 to M64
12.9
B18.3.1 M
4762
A574M
Socket Low Head Cap Screws
M4 to M20
10.9
 
 
 
Socket Head Shoulder Screws
M6 to M24
012.9
B18.3.3M
 
 
Countersunk Socket Head Screws
M3 to M20
012.9
B18.3.5M
10642
F835M
Button Head Socket Screws
M3 to M12
012.9
B18.3.4M
7380
F835M
Flange Button Head Socket Screws
M3 to M10
012.9
 
 
F835M
Knurled Point Socket Set Screws
M3 to M20
45H
B18.3.6M
4029
F912M
Flat Point Socket Set Screws
M6 to M12
45H
B18.3.6M
4026
F912M
Dog Point Socket Set Screws
M3 to M20
45H
B18.3.6M
4028
F912M
Cone Point Socket Set Screws
M3 to M12
45H
B18.3.6M
4027
F912M
Plain Point Socket Set Screws
M3 to M20
45H
B18.3.6M
4029
F912M
Taper Pressure Plug
M8 to M22
 
 

CU-NI 90/10 HEX HEAD NUT WEIGHT CHART

Property
Minimum Value (S.I.)
Maximum Value (S.I.)
Units (S.I.)
Minimum Value (Imp.)
Maximum Value (Imp.)
Units (Imp.)
Atomic Volume (average)
0.0071
0.0073
m3/kmol
433.268
445.473
in3/kmol
Density
8.5
8.95
Mg/m3
530.638
558.731
lb/ft3
Energy Content
140
180
MJ/kg
15167.4
19501
kcal/lb
Bulk Modulus
130
170
GPa
18.8549
24.6564
106 psi
Compressive Strength
85
550
MPa
12.3282
79.7708
ksi
Ductility
0.03
0.44
 
0.03
0.44
 
Elastic Limit
85
550
MPa
12.3282
79.7708
ksi
Endurance Limit
138
240
MPa
20.0152
34.809
ksi
Fracture Toughness
26
79
MPa.m1/2
23.6612
71.8937
ksi.in1/2
Hardness
580
1650
MPa
84.1219
239.312
ksi
Loss Coefficient
1.5e-005
0.00056
 
1.5e-005
0.00056
 
Modulus of Rupture
85
550
MPa
12.3282
79.7708
ksi
Poisson's Ratio
0.34
0.35
 
0.34
0.35
 
Shear Modulus
45
58
GPa
6.5267
8.41219
106 psi
Tensile Strength
267
624
MPa
38.7251
90.5036
ksi
Young's Modulus
120
156
GPa
17.4045
22.6259
106 psi
Glass Temperature
 
 
K
 
 
°F
Latent Heat of Fusion
220
240
kJ/kg
94.5825
103.181
BTU/lb
Maximum Service Temperature
425
480
K
305.33
404.33
°F
Melting Point
1384
1508
K
2031.53
2254.73
°F
Minimum Service Temperature
0
0
K
-459.67
-459.67
°F
Specific Heat
384
386
J/kg.K
0.297162
0.298709
BTU/lb.F
Thermal Conductivity
19
66
W/m.K
35.5686
123.554
BTU.ft/h.ft2.F
Thermal Expansion
16
17
10-6/K
28.8
30.6
10-6/°F
Breakdown Potential
 
 
MV/m
 
 
V/mil
Dielectric Constant
 
 
 
 
 
 
Resistivity
11.7
36.3
10-8 ohm.m
11.7
36.3
10-8 ohm.m

COPPER NICKEL 90/10 BOLTS AND NUTS CHEMICAL STRUCTURE

Grade Cu Mn Pb Ni Fe Zn
Cu-Ni 90-10 88.6 min 1.0 max .05 max 9-11 max 1.8 max 1 max

CUPRO NICKEL 90/10 FLAT WASHER MECHANICAL BEHAVIOUR

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Copper Nickel 90-10 0.323 lb/in3 at 68 F 2260 F 50000 psi 20000 psi 30 %

CU-NI 90/10 HEX HEAD NUT EQUIVALENT MATERIAL

STANDARD WERKSTOFF NR. UNS
Specifications 2.0872 C70600
Size 2.0882 C71500

We Shine For Premier Quality Product

The company has over two decade long record of servicing customers in India as well as all over the world. The company attaches significant emphasis on ensuring adherence to quality standards at all levels.

The basic thrust of the quality philosophy is summed up in the company's Quality Policy which serves as the bench mark of all functions executed by the company. Strict quality assurance system is being followed in all our departments and Total Quality Management is applied to streamline and all the procedures and practices in operation to achieve high standard of efficiency.

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48/50, Hingwala Building, Office No. 8, 3rd Floor, C. P. Tank Road, Mumbai - 400004, Maharashtra, India
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