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ASTM F436 Washer

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Specification

CHEMICAL & MECHANICAL COMPOSITION

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ASTM F436 Washer

ASME SF436 Flat Washers and Lock Washers at Best price in India.

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Prashaant Steel & Alloys is a well-known ASTM F436 Washers maker and retailer. We manufacture ASTM ASTM F436 Washers with the best quality raw materials from our vast inventory. Prashaant Steel & Alloys produces ASTM F436 Washers of excellent quality and has carved out a niche for itself in the industry. Our ASTM F436 Washers are highly common and are used in a number of industries due to their high strength and reliability. Prashaant Steel & Alloys has a well-equipped production facility that can fill huge orders of ASTM F436 Washers in a range of sizes and diameters. We manufacture 1.4980 Stud Bolts and export them to all of the world’s big cities. We store our goods in suitable wooden boxes and ship them with all appropriate paperwork to prevent product degradation during shipping.

ASTM F436 Hardened Washers are used to give tightness to the joint, to prevent leakage and to distribute pressure under the head of nut or bolt. These are designed for general purpose like with bolts, nuts, studs and other threaded fasteners. ASTM F436 square washers are available in various sizes, forms. They cover pressure temperature ratings, materials, dimensions, tolerances etc.

ASTM F436 Lock washers prevents nuts and bolts from turning, slipping because of vibration and torque. This works by adding tension to a fastener assembly. These are thus used in various other industries. ASTM F436 Flat washers can be found in various sizes and it also has various dimensions and specifications. For smooth bearing surface, it is placed under the head of a bolt or nut. ASTM Bevel washers comes under square or rectangular shape in nominal sizes like ½ to 1 ½ inches with a beveled 1 to 6 ratios surface for use with American Standard. 

Let’s understand what is F436, this is the material grade which is a flat washer that has a value ranging from 38 to 45 HRC. The ASTM F436 washers is used under bolt nuts and moves forward to increase the bearing area. This is used to protect the surfaces which was equally distributed while tightening bolt or screw and also prevent corrosion between steel screw and aluminium surface. Weathering steel ASTM F436 Type 3 washers are intended for structural use like bolts, nuts, studs and other threaded fasteners.

Specifications chart of ASTM F436 Flat Washer:

ASTM Standards

F436

Additional Requirements

NACE MR0103 / MR0175 / ISO 15156 Compliance

Threads Configuration

ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads

Dimensions

ASME B18.2.1, B18.3

Additional Certifications

PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified

Coatings

Cadmium, Galvanized, Black Oxide, Zinc, Xylan, Teflon.

ASTM F436 Lock Washer Size Chart:

Size

USS

SAE

Inside Diameter

(A)

Outside Diameter

(B)

Thickness

(C)

Inside Diameter

(A)

Outside Diameter

(B)

Thickness

(C)

#2

3/32″

1/4″

0.020″

#4

1/8″

5/16″

0.032″

#6

5/32″

3/8″

0.049″

#8

3/16″

7/16″

0.049″

#10

7/32″

1/2″

0.049″

#12

1/4″

9/16″

0.065″

1/4″

5/16″

0.734″

0.065″

9/32″

5/8″

0.065″

5/16″

3/8″

7/8″

0.083″

11/32″

11/16″

0.065″

3/8″

7/16″

1″

0.083″

13/32″

13/16″

0.065″

7/16″

1/2″

1-1/4″

0.083″

15/32″

15/16″

0.065″

1/2″

9/16″

1-3/8″

0.109″

17/32″

1-1/16″

0.095″

9/16″

5/8″

1-15/32″

0.109″

19/32″

1-5/32″

0.095″

5/8″

11/16″

1-3/4″

0.134″

21/32″

1-5/16″

0.095″

3/4″

13/16″

2″

0.148″

13/16″

1-15/32″

0.134″

7/8″

15/16″

2-1/4″

0.165″

15/16″

1-3/4″

0.134″

1-1/8″

1-1/4″

2-3/4″

0.165″

1-1/4″

1-3/8″

3″

0.165″

1-1/2″

1-5/8″

3-1/2″

0.180″

1-5/8″

1-3/4″

3-3/4″

0.180″

2″

2-1/8″

4-1/2″

0.213″

Dimensions of ASTM F436 Spring Washers:

NOM SIZE

Inner Dia (d) Basic Tol (+)

Outer Dia (d1) Max

WIDTH (b) Basic Tol (+ or -)

THICKNESS (S) Basic Tol (+ or -)

Weight per 1000 in Kgs

3

3.1

0.3

6.2

1.3

0.1

0.8

0.1

0.11

4

4.1

0.3

7.6

1.5

0.1

0.9

0.1

0.18

5

5.1

0.3

9.2

1.8

0.1

1.2

0.1

0.36

6

6.1

0.4

11.8

2.5

0.15

1.6

0.1

0.83

8

8.1

0.4

14.8

3

0.15

2

0.1

1.60

10

10.2

0.5

18.1

3.5

0.2

2.2

0.15

2.53

12

12.2

0.5

21.1

4

0.2

2.5

0.15

3.82

16

16.2

0.8

27.4

5

0.2

3.5

0.2

8.91

18

18.2

0.8

29.4

5

0.2

3.5

0.2

9.73

22

22.5

1

35.9

6

0.2

4

0.2

16.50

24

24.5

1

40

7

0.25

5

0.2

26.20

30

30.5

1.2

48.2

8

0.25

6

0.2

44.30

33

33.5

1.2

55.2

10

0.25

6

0.2

63.00

36

36.5

1.2

58.2

10

0.25

6

0.2

67.30

42

42.5

1.2

68.2

12

0.25

7

0.25

111.00

45

45.5

1.2

71.2

12

0.25

7

0.25

117.00

48

49

1.5

75

12

0.25

7

0.25

123.00

F436 Structural Washers Chemical Compatibility:

Element

Type 1

Type 3

Phosphorous, max

0.040%

0.040%

Sulfur, max

0.050%

0.050%

Silicon

0.15 – 0.35%

Chromium

0.45 – 0.65%

Nickel

0.25 – 0.45%

Copper

0.25 – 0.45%

Mechanical Analysis of ASTM F436 Square Washers:

Plain Finish

Hot Dip Galvanized

Rockwell Hardness 38 to 45 HRC

Rockwell Hardness 26 to 45 HRC

ASTM F436 Flat Washers Standard Dimensions:

Bolt Size

USS

SAE

OD (in.)

ID (in.)

Thickness

OD (in.)

ID (in.)

Thickness

1/8 (#6)

0.375

0.156

.036/.065

5/32 (#8)

0.438

0.188

.036/.065

3/16 (#10)

0.560

0.250

.036/.065

0.500

0.220

.036/.065

7/32 (#12)

0.562

0.250

.051/.080

1/4 (#14)

0.734

0.312

.051/.080

0.625

0.281

.051/.080

5/16

0.875

0.375

.064/.104

0.688

0.344

.051/.080

3/8

1.000

0.438

.064/.104

0.812

0.406

.051/.080

7/16

1.250

0.500

.064/.104

0.922

0.469

.051/.080

1/2

1.375

0.562

.086/.132

1.062

0.531

.074/.121

9/16

1.469

0.625

.086/.132

1.156

0.594

.074/.121

5/8

1.750

0.688

.108/.160

1.312

0.656

.074/.121

3/4

2.000

0.812

.122/.177

1.469

0.812

.108/.160

7/8

2.250

0.938

.136/.192

1.750

0.938

.108/.160

1

2.500

1.062

.136/.192

2.000

1.062

.108/.160

1 1/8

2.750

1.250

.136/.192

2.250

1.250

.108/.160

1 1/4

3.000

1.375

.136/.192

2.500

1.375

.136/.192

1 3/8

3.250

1.500

.153/.213

2.750

1.500

.136/.213

1 1/2

3.500

1.625

.153/.213

3.000

1.625

.153/.213

1 5/8

3.750

1.750

.153/.213

1 3/4

4.000

1.875

.153/.213

1 7/8

4.250

2.000

.153/.213

2

4.500

2.125

.153/.213

2 1/4

4.750

2.375

.320/.248

2 1/2

5.000

2.625

.210/.280

2 3/4

5.250

2.875

.228/.410S

3

5.500

3.125

.249/.327

Weight Table of ASTM F436 Bevel Washer:

Bolt Size

B

A

C

Weight (lbs.) Per 1000 Pieces

Part Numbers

Outside Diameter

Inside Diameter

Thickness

Domestic

Min

Max

Plain

Galvanized

1⁄2

11⁄16

17⁄32

0.097

0.177

18

16440

16441

3⁄4

115⁄32

13⁄16

0.122

0.177

41

16444

16445

7⁄8

13⁄4

15⁄16

0.136

0.177

64

16446

16447

11⁄8

21⁄4

13⁄16

0.136

0.177

105

16450

16451

11⁄4

21⁄2

13⁄8

0.136

0.177

133

16452

16453

11⁄2

3

15⁄8

0.136

0.177

200

16456

16457

15⁄8

31⁄4

13⁄4

0.178

0.28

320

19481*

19482*

17⁄8

31⁄2

2

0.178

0.28

360

16471*

16472

2

33⁄4

21⁄8

0.178

0.28

380

16460

16461

21⁄4

4

23⁄8

0.24

0.34

560

16462

16463

23⁄4

5

27⁄8

0.24

0.34

920

16611

16612

3

51⁄2

31⁄8

0.24

0.34

1040

16613

16614

31⁄2

61⁄2

35⁄8

0.24

0.34

1633

18490

18460

33⁄4

7

37⁄8

0.24

0.34

1880

4

71⁄2

41⁄8

0.24

0.34

2200

18461

18462

ASTM F436 Washer Applications:

  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Pharmaceuticals
  • Sea Water Equipment

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