ASTM A354 Bolts
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The ASTM A354 Bolts determinations covers the concoction and mechanical prerequisites of extinguished and tempered composite steel screws, studs, and other remotely strung latches 4″ and under in width. This detail has no limitations in its design and can be a strung bar, headed jolt or a twisted jolt. The ASTM A354 Bolts jolts are not intended to be utilized in applications where they are tensioned to the greater part of their evaluated rigidity. In applications requiring the greater part the appraised elasticity, an overwhelming hex head jolt is suggested.
ASTM A354 Bolts covers the substance and mechanical necessities of extinguished and tempered compound steel screws, studs, and other remotely strung latches 4" and under in measurement. Two quality dimensions, reviews BC and BD.
BD-Grade BD jolts are higher in quality than review BC, and rise to in solidarity to ASTM F3125 review A490 jolts. Dissimilar to A490 in any case, the A354 standard is unhindered in its arrangement. Additionally, since A490 jolts are for basic use and don't surpass 1-1/2" in breadth, A354 review BD ought to be considered for stay jolts, strung bars, different styles of headed jolts, and jolts bigger than 1-1/2" distance across where comparative mechanical properties are wanted. A354 review BD does not require an attractive molecule test like A490, with the exception of when gotten out as a supplemental necessity.
BC-Lower in quality than BD. Ought to be considered in lieu of F3125 review A325 jolts when arrangement and size clashes happen with A325 as portrayed above for review BD and A490 jolts.
This standard characterizes the properties for latches up to 4 creeps in distance across. They are not to be utilized in applications where they are tensioned to over half of their elasticity. In those applications auxiliary substantial hex jolts are to be utilized, as characterized by ASTM A490, despite the fact that they have a similar quality.
ASTM A354 Bolts Specification
ASTM A354 Bolts BD should be considered for anchor bolts, threaded rods, other styles of headed bolts, and bolts larger than 1-1/2". Grade BD bolts are higher in strength than A354 grade BC and equal in strength to ASTM A490 bolts. Unlike ASTM A490 however, the A354 BD specification is unrestricted in its configuration.
Chemical Composition
| Element | All sizes of Grade BC, Grade BD through 2-1/4” diameter. | Grade BD over 2-1/4” |
|---|---|---|
| Carbon, % | 0.30 to 0.53 | 0.35 to 0.53 |
| Manganese, % min | 0.60 | 0.60 |
| Phosphorus, % max | 0.035 | 0.035 |
| Sulfur, % max | 0.040 | 0.040 |
| Boron, % max | 0.003 | 0.003 |
| Nickel, % min | 0.40 | |
| Chromium, % min | 0.40 | |
| Molybdenum, % min | 0.15 | |
| Other Alloying Elements | * | * |
| *steel is considered to be alloy when the maximum range given for manganese exceeds 1.65 % or a definite minimum quantity for any of the following elements is specified or required within the limits of the recognized field of constructional alloy steels: chromium, molybdenum, nickel, or any other alloying element added to obtain a desired alloying effect. | ||
ASTM A354 Bolts Mechanical Properties
| Grade | Size | Tensile, ksi, min | Yield, ksi, min | Elong %, min | RA %, min | Hardness, HRC |
|---|---|---|---|---|---|---|
| BC | 1/4 - 2-1/2 | 125 min | 109 | 16 | 50 | 26 - 36 |
| Over 2-1/2 | 115 min | 99 | 16 | 45 | 22 - 33 | |
| BD | All Sizes | 150 - 173 | 130 | 14 | 40 | 33 - 38 |
ASTM A354 Bolts-BD / SAE GRADE 8 Bolt Torque Chart
| Bolt Size | TPI | ProofLoad (lbs) | ClampLoad (lbs) | ||
|---|---|---|---|---|---|
| Tightening Torque (ft lbs) | |||||
| Lubricated | Plain | ||||
| 1⁄4 | 20 | 3,800 | 2,850 | 6 | 12 |
| 5⁄16 | 18 | 6,300 | 4,725 | 12 | 25 |
| 3⁄8 | 16 | 9,300 | 6,975 | 22 | 44 |
| 7⁄16 | 14 | 12,750 | 9,563 | 35 | 70 |
| 1⁄2 | 13 | 17,050 | 12,788 | 53 | 107 |
| 9⁄16 | 12 | 21,850 | 16,388 | 77 | 154 |
| 5⁄8 | 11 | 27,100 | 20,325 | 106 | 212 |
| 3⁄4 | 10 | 40,100 | 30,075 | 188 | 376 |
| 7⁄8 | 9 | 55,450 | 41,588 | 303 | 606 |
| 1 | 8 | 72,700 | 54,525 | 454 | 909 |
| 11⁄8 | 7 | 91,550 | 68,663 | 644 | 1,287 |
| 11⁄4 | 7 | 120,000 | 90,000 | 938 | 1,875 |
| 13⁄8 | 6 | 138,600 | 103,950 | 1,191 | 2,382 |
| 11⁄2 | 6 | 168,600 | 126,450 | 1,581 | 3,161 |
| 13⁄4 | 5 | 228,000 | 171,000 | 2,494 | 4,988 |
| 2 | 41⁄2 | 300,000 | 225,000 | 3,750 | 7,500 |
| 21⁄4 | 41⁄2 | 390,000 | 292,500 | 5,484 | 10,969 |
| 21⁄2 | 4 | 480,000 | 360,000 | 7,500 | 15,000 |
| 23⁄4 | 4 | 517,650 | 388,238 | 8,897 | 17,794 |
| 3 | 4 | 626,850 | 470,138 | 11,753 | 23,507 |
| 31⁄4 | 4 | 745,500 | 559,125 | 15,143 | 30,286 |
| 31⁄2 | 4 | 874,650 | 655,988 | 19,133 | 38,266 |
| 33⁄4 | 4 | 101,4300 | 760,725 | 23,773 | 47,545 |
| 4 | 4 | 1,163,400 | 872,550 | 29,085 | 58,100 |
| * SAE J429 grade 8 bolts do not exceed 1-1/2″ diameter. | |||||
ASTM Standards Of ASTM A354 Bolts
| BD | Grade BD bolts are higher in strength than grade BC, and equal in strength to ASTM F3125 grade A490 bolts. Unlike A490 however, the A354 standard is unrestricted in its configuration. Also, since A490 bolts are for structural use and do not exceed 1-1/2” in diameter, A354 grade BD should be considered for anchor bolts, threaded rods, other styles of headed bolts, and bolts larger than 1-1/2” diameter where similar mechanical properties are desired. A354 grade BD does not require a magnetic particle test like A490, except when called out as a supplemental requirement. |
|---|---|
| BC | Lower in strength than BD. Should be considered in lieu of F3125 grade A325 bolts when configuration and size conflicts occur with A325 as described above for grade BD and A490 bolts |
Grades
| Type | Description |
|---|---|
| Grade BC | ASTM A354 Bolts Grade BC is similar to BD with little lower strength. |
| Grade BD | ASTM A354 Bolts Grade BD should be considered for anchor bolts, threaded rods, other styles of headed bolts, and bolts larger than 1-1/2" diameter where similar mechanical properties are desired. |
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Mechanical Properties
| Type | Size | Tensile, min, ksi | Yield, min, ksi | Elongation, min, % | Reduction of Area, min, % |
|---|---|---|---|---|---|
| Grade BC | 1/4" to 2-1/2" 2-5/8" to 4" |
125 115 |
109 99 |
16 16 |
50 45 |
| Grade BD | 1/4" to 2-1/2" 2-5/8" to 4" |
150 140 |
130 115 |
14 14 |
40 40 |
ASTM A354 Bolts Industrial Applications
- ASTM A354 Bolts uses in Aircraft Exhaust Manifolds
- ASTM A354 Bolts uses in Off-Shore Oil Drilling Companies
- ASTM A354 Bolts uses in Power Generation
- ASTM A354 Bolts uses in Petrochemicals
- ASTM A354 Bolts uses in Gas Processing
- ASTM A354 Bolts uses in Specialty Chemicals
- ASTM A354 Bolts uses in Pharmaceuticals
- ASTM A354 Bolts uses in Pharmaceutical Equipment
- ASTM A354 Bolts uses in Spiral Welded tube for burner pipes and flues
- ASTM A354 Bolts uses in Sea Water Equipment
- ASTM A354 Bolts uses in Heat Exchangers
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