Copper crush and spring washer are thus high in demand in the market as copper crush is used for sealing steel whereas spring washer is just like a round spiral spring and is used as a nut locking device. DIN 7603 copper sealing washers has some specifications like inner diameter, outer diameter and thickness.
DIN 125 Copper Fender Washers is placed under the head of bolt or nut to tighten the nut. This washer usually has zinc plated coating or with no finishing at all. The metals used in manufacturing this product is brass, copper and many more. Metric copper washer divides the pressure of fastener on a flat surface without damaging the fastener. These are available in various sizes and works on a particular temperature range. Copper Washer Manufacturer in India offers a wide Range of Dimensions.
M14 copper washer is basically the part number of the washer, which describes that where it is used and what will be the inner and outer diameter and also the thickness of the washer. 8mm copper lock washer is used in fuel industry, automotive industry and many others. Annealing Copper Washers means when you anneal i.e. when you melt the copper, it moulds into the exact shape of the surface. This is done in order to soften the copper so that they can be used in bolts or nuts.
Table of Content
Copper Crush Washer
Copper Washers
Copper Flat washers
Copper Alloy Washer Sizes
Length
Features
Testing Methods
Packaging Methods
Applications
Surface Coating
Head Drive
Production process
Forms
Finishing
Fasteners Threads
Copper Alloy Flat Washer
Cu Copper Spring Washer
Pure Copper Punched Washer
Cu Metal Machined Washer
Copper Washer
Copper Crush Round Washer
Copper Flat Square Washer
DIN 7603 Copper Plain Washer
Cu Lock Washer
CDA 102 Cu Spherical Washer
Copper CDA 101 Tab Washer
Copper CDA 102 Fender Washer
CDA 110 Customized Washer
Large Copper Dock Washer
Copper Sealing Hexagonal Washer
Metric Copper Split Washer
imperial Copper Hex Washers
Copper Ogee Washer
copper alloy Tooth Lock Washer
Pure Copper Countersunk Washer
| Size | SAE | USS | ||||
|---|---|---|---|---|---|---|
| Inside Diameter (A) |
Outside Diameter (B) |
Thickness (C) |
Inside Diameter (A) |
Outside Diameter (B) |
Thickness (C) |
|
| #12 | 1/4" | 9/16" | 0.065" | - | - | - |
| #10 | 7/32" | 1/2" | 0.049" | - | - | - |
| #4 | 1/8" | 5/16" | 0.032" | - | - | - |
| #2 | 3/32" | 1/4" | 0.020" | - | - | - |
| 1/2" | 17/32" | 1-1/16" | 0.095" | 9/16" | 1-3/8" | 0.109" |
| 1-1/2" | - | - | - | 1-5/8" | 3-1/2" | 0.180" |
| 9/16" | 19/32" | 1-5/32" | 0.095" | 5/8" | 1-15/32" | 0.109" |
| 1-3/8" | - | - | - | 1-1/2" | 3-1/4" | 0.180" |
| 1/4" | 9/32" | 5/8" | 0.065" | 5/16" | 0.734" | 0.065" |
| 7/8" | 15/16" | 1-3/4" | 0.134" | 15/16" | 2-1/4" | 0.165" |
| 1" | 1-1/16" | 2" | 0.134" | 1-1/16" | 2-1/2" | 0.165" |
| 5/16" | 11/32" | 11/16" | 0.065" | 3/8" | 7/8" | 0.083" |
| 2" | - | - | - | 2-1/8" | 4-1/2" | 0.213" |
NOM SIZE |
THICKNESS (S) Basic Tol (+ or -)
| WIDTH (b) Basic Tol (+ or -) |
Outer Dia (d1) Max |
Inner Dia (d) Basic Tol (+) |
Weight per 1000 in Kgs |
|||
|---|---|---|---|---|---|---|---|---|
| 22 | 4 | 0.2 | 6 | 0.2 | 35.9 | 22.5 | 1 | 16.50 |
| 30 | 6 | 0.2 | 8 | 0.25 | 48.2 | 30.5 | 1.2 | 44.30 |
| 5 | 1.2 | 0.1 | 1.8 | 0.1 | 9.2 | 5.1 | 0.3 | 0.36 |
| 33 | 6 | 0.2 | 10 | 0.25 | 55.2 | 33.5 | 1.2 | 63.00 |
| 24 | 5 | 0.2 | 7 | 0.25 | 40 | 24.5 | 1 | 26.20 |
| 6 | 1.6 | 0.1 | 2.5 | 0.15 | 11.8 | 6.1 | 0.4 | 0.83 |
| 8 | 2 | 0.1 | 3 | 0.15 | 14.8 | 8.1 | 0.4 | 1.60 |
| 10 | 2.2 | 0.15 | 3.5 | 0.2 | 18.1 | 10.2 | 0.5 | 2.53 |
| 20 | 4 | 0.2 | 6 | 0.2 | 33.6 | 20.2 | 1 | 15.20 |
| 27 | 5 | 0.2 | 7 | 0.25 | 43 | 27.5 | 1 | 28.70 |
| 45 | 7 | 0.25 | 12 | 0.25 | 71.2 | 45.5 | 1.2 | 117.00 |
| 48 | 7 | 0.25 | 12 | 0.25 | 75 | 49 | 1.5 | 123.00 |
| 52 | 8 | 0.25 | 14 | 0.25 | 83 | 53 | 1.5 | 320.00 |
| 42 | 7 | 0.25 | 12 | 0.25 | 68.2 | 42.5 | 1.2 | 111.00 |
| 36 | 6 | 0.2 | 10 | 0.25 | 58.2 | 36.5 | 1.2 | 67.30 |
| 3 | 0.8 | 0.1 | 1.3 | 0.1 | 6.2 | 3.1 | 0.3 | 0.11 |
| 4 | 0.9 | 0.1 | 1.5 | 0.1 | 7.6 | 4.1 | 0.3 | 0.18 |
| 39 | 6 | 0.2 | 10 | 0.25 | 61.2 | 39.5 | 1.2 | 71.70 |
| 12 | 2.5 | 0.15 | 4 | 0.2 | 21.1 | 12.2 | 0.5 | 3.82 |
| 14 | 3 | 0.15 | 4.5 | 0.2 | 24.1 | 14.2 | 0.5 | 6.01 |
| 16 | 3.5 | 0.2 | 5 | 0.2 | 27.4 | 16.2 | 0.8 | 8.91 |
| 18 | 3.5 | 0.2 | 5 | 0.2 | 29.4 | 18.2 | 0.8 | 9.73 |
Bolt Size |
SAE |
USS |
||||
|---|---|---|---|---|---|---|
OD (in.) |
ID (in.) |
Thickness |
OD (in.) |
ID (in.) |
Thickness |
|
1 1/4 |
2.500 |
1.375 |
.136/.192 |
3.000 |
1.375 |
.136/.192 |
1 3/8 |
2.750 |
1.500 |
.136/.213 |
3.250 |
1.500 |
.153/.213 |
7/32 (#12) |
0.562 |
0.250 |
.051/.080 |
- |
- |
- |
1/2 |
1.062 |
0.531 |
.074/.121 |
1.375 |
0.562 |
.086/.132 |
1/4 (#14) |
0.625 |
0.281 |
.051/.080 |
0.734 |
0.312 |
.051/.080 |
5/16 |
0.688 |
0.344 |
.051/.080 |
0.875 |
0.375 |
.064/.104 |
3/8 |
0.812 |
0.406 |
.051/.080 |
1.000 |
0.438 |
.064/.104 |
3/16 (#10) |
0.500 |
0.220 |
.036/.065 |
0.560 |
0.250 |
.036/.065 |
5/8 |
1.312 |
0.656 |
.074/.121 |
1.750 |
0.688 |
.108/.160 |
3/4 |
1.469 |
0.812 |
.108/.160 |
2.000 |
0.812 |
.122/.177 |
1/8 (#6) |
0.375 |
0.156 |
.036/.065 |
- |
- |
- |
5/32 (#8) |
0.438 |
0.188 |
.036/.065 |
- |
- |
- |
7/8 |
1.750 |
0.938 |
.108/.160 |
2.250 |
0.938 |
.136/.192 |
1 |
2.000 |
1.062 |
.108/.160 |
2.500 |
1.062 |
.136/.192 |
3 |
- |
- |
- |
5.500 |
3.125 |
.249/.327 |
2 1/2 |
- |
- |
- |
5.000 |
2.625 |
.210/.280 |
2 |
- |
- |
- |
4.500 |
2.125 |
.153/.213 |
1 5/8 |
- |
- |
- |
3.750 |
1.750 |
.153/.213 |
1 3/4 |
- |
- |
- |
4.000 |
1.875 |
.153/.213 |
| Inner Diameter (mm) | Outer Diameter (mm) | Weight (grams) | Thickness (mm) |
|---|---|---|---|
| 10 | 18 | 1.66 | 2 |
| 12 | 20 | 1.99 | 2 |
| 25 | 35 | 5.73 | 2 |
| 8 | 16 | 1.38 | 2 |
| 8 | 14 | 1.19 | 2 |
| 20 | 30 | 4.25 | 2 |
| 14 | 22 | 2.31 | 2 |
| 15 | 25 | 2.84 | 2 |
| 5 | 10 | 0.69 | 2 |
| 6 | 12 | 0.91 | 2 |
| Bolt Size (mm) | Recommended Torque (Nm) | Washer Outer Diameter (mm) |
|---|---|---|
| 18 | 45-50 | 24 |
| 20 | 55-60 | 26 |
| 14 | 25-30 | 20 |
| 22 | 70-80 | 28 |
| 6 | 3-5 | 12 |
| 10 | 12-15 | 16 |
| 16 | 35-40 | 22 |
| 12 | 18-22 | 18 |
| 8 | 7-10 | 14 |
| 24 | 85-100 | 30 |
| STANDARD | UNS | WERKSTOFF NR. |
|---|---|---|
| Copper Nickel 70/30 | C71500 | 2.0882 |
| Copper Nickel 90/10 | C70600 | 2.0872 |
| Property | Value |
|---|---|
| Oxidation | Forms green patina over |
| Corrosion Resistance | Good (forms a protective oxide layer) |
| Malleability | High |
| Ductility | High |
| Hardness | 35-45 HB (Brinell scale) |
| Tensile | (Brinell scale) 210 MPa |
| Density | 8.96 g/cm³ |
| Melting Point | 1,085°C (1,984°F) |
| Electrical Conductivity | 59.6 X 106 S/m |
| Thermal Conductivity | 398 W/m-K |
| Property | Value |
|---|---|
| Modulus of Elasticity | 110 GPa |
| Poisson's Ratio | 0.34 |
| Shear Strength | 130 MPa (approx.) |
| Fatigue Strength | 55 MPa (approx.) |
| Tensile Strength | 210 MPa (approx.) |
| Yield Strength | 33 MPa (approx.) |
| Elongation | 40% (approx.) |
| Hardness | 35-45 HB (Brinell hardness scale) |
Copper Washer Manufacturer in India ensures exact chemical structure for fasteners
Material designation |
COMPOSITION %
|
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Element
|
Cu
|
Ag
|
Bi
|
O
|
P
|
Pb
|
Other elements (see note)
|
|||
Symbol |
Number
|
Total
|
Excluding
|
|||||||
Cu-ETP |
CW004A
|
min.
max. |
99,90(1)
– |
–
– |
–
0,0005 |
–
0,040(2) |
–
– |
–
0,005 |
–
0,03 |
Ag. O
|
Cu-FRHC |
CW005A
|
min.
max. |
99,90(1)
– |
–
– |
–
– |
–
0,040(2) |
–
– |
–
– |
–
0,04 |
Ag. O
|
Cu-OF |
CW008A
|
min.
max. |
99,95(1)
– |
–
– |
–
0,0005 |
–
-(3) |
–
– |
–
0,005 |
–
0,03 |
Ag.
|
CuAg 0,04 |
CW0011A
|
min.
max. |
Balance
– |
0,03
0,05 |
–
0,0005 |
–
0,040 |
–
– |
–
– |
–
0,03 |
Ag. O
|
CuAg 0,07 |
CW0012A
|
min.
max. |
Balance
– |
0,06
0,08 |
–
0,0005 |
–
0,040 |
–
– |
–
– |
–
0,03 |
Ag. O
|
Yes, copper washers can be used with threaded fasteners.
| Material | Suitability |
|---|---|
| Copper | Limited in acids/salts |
| SS 316 | Excellent in harsh conditions |
| Monel/Inconel | Highly resistant to corrosion |
| Titanium | Excellent in most corrosive environments |
Copper Washer Supplier in India provides fasteners with excellent strength.
Materials
