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ASTM F436
Scope
ASTM F436 covers the chemical and mechanical requirements for hardened washers in diameters ranging from 1/4″ to 4″ inclusive. These heat treated washers are for general purpose and structural use and are suitable for use with A325 and A490 structural bolts. Additionally, they are used with bolts per A449, A354, A193, A320, F1554 and whenever specified.
F436 Types
| Type 1 | Carbon Steel |
|---|---|
| Type 3 | Weathering Steel |
F436 Styles
| Circular | Round SAE pattern | Sizes 1/4" through 4" |
|---|---|---|
| Beveled | Beveled Slope 2 in 12 or 9.5 degrees for use with American standard beams | Sizes 1/2" through 1-1/2" |
| Clipped | Circular or Beveled | Sizes 1/2" through 1-1/2" beveled, 1/4" through 4" circular |
| Beveled F436 washers are normally not available above 1". Clipped bevel washers are only usually available as specials. | ||
F436 Mechanical Properties
| Plain Finish | Hot Dip Galvanized |
|---|---|
| Rockwell Hardness 38 to 45 HRC | Rockwell Hardness 26 to 45 HRC |
F436 Chemical Requirements
| 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% |
| Weathering steel washer may also be made from any of the steels listed in Table 2 of A325. | ||
F436 Flat Washers
F436 flat washers are manufactured from carbon steel to meet or exceed ASTM F436. Zinc plated material will meet or exceed ASTM F1941. Hot-Dip Galvanized material will meet or exceed ASTM A153 and/or ASTM F2329. Hardness for plain and zinc plated washers is HRC 38-45 and HRC 26-45 for hot-dip galvanized washers per ASTM F436.
| F436 Flat Washers | |||||
| Bolt Size | Outside Diameter | Inside Diameter | Thickness | ||
| 1/2 | 1.063 | .531 | .097/.177 | ||
| 5/8 | 1.313 | .688 | .122/.177 | ||
| 3/4 | 1.469 | .813 | .122/.177 | ||
| 7/8 | 1.750 | .938 | .136/.177 | ||
| 1 | 2.000 | 1.063 | .136/.177 | ||
| 1-1/8 | 2.250 | 1.188 | .136/.177 | ||
| 1-1/4 | 2.500 | 1.375 | .136/.177 | ||
| 1-3/8 | 2.750 | 1.531 | .136/.177 | ||
| 1-1/2 | 3.000 | 1.625 | .136/.177 | ||
| 1-5/8 | 3.250 | 1.770 | .178/.280 | ||
| 1-3/4 | 3.375 | 1.875 | .178/.280 | ||
| 1-7/8 | 3.500 | 2.000 | .178/.280 | ||
| 2 | 3.750 | 2.125 | .178/.280 | ||
| 2-1/4 | 4.000 | 2.407 | .240/.340 | ||
| 2-1/2 | 4.500 | 2.657 | .240/.340 | ||
| 2-3/4 | 5.000 | 2.907 | .240/.340 | ||
| 3 | 5.500 | 3.157 | .240/.340 | ||
Astm F436 Washer Application Industries
Sunflex Metal Industries are engaged in manufacturing of robust quality of Astm F436 Washer. These Astm F436 Washer are widely used in the following industries:
Mining Industries Transport Industries- Rail and Road Construction Industries / Building Systems Manufacturing Industries Agriculture Industries Energy Industries Water Industries Automotive Industries Ship Building Industries Nuclear Power Plant Paper & Pulp Industries Sugar Industries Engineering Cement Industries Petro-Chemical Industries Food Industries Oil & Gas Industries Chemical & Pharmaceutical Industries
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