Astm A449 Type 1 Bolts Specification
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Astm A449 Type 1 Bolts Properties
Chemical Properties | |||
---|---|---|---|
C | Mn | P | S |
0.25-0.58 | 0.57 Min | 0.048 Max | 0.058 Max |
Tensile Requirement For Fine-Thread Full Size Bolts And Studs | |||||||||
---|---|---|---|---|---|---|---|---|---|
Bolt or Stud Diameter, in. | |||||||||
01-Apr | May-16 | 03-Aug | Jul-16 | 01-Feb | Sep-16 | 05-Aug | |||
Threads Per inch | 28 | 24 | 24 | 20 | 20 | 18 | 18 | ||
Stress Area, in | 0.0364 | 0.058 | 0.0878 | 0.1187 | 0.1599 | 0.203 | 0.256 | ||
Tensile Load, min | 4350 | 6950 | 10550 | 14500 | 19200 | 24350 | 30700 | ||
Proof Load, Length Measurement Metthod | 3100 | 4950 | 7450 | 10100 | 13600 | 17250 | 21750 | ||
Alternative Proof Load, Yield Strength Method | 3500 | 5350 | 8100 | 10900 | 14700 | 18700 | 23500 | ||
03-Apr | 07-Aug | 1 | 1 1/8 | 1 1/4 | 1 3/8 | 1 1/2 | |||
Threads Per inch | 16 | 14 | 12 | 12 | 12 | 12 | 12 | ||
Tensile Requirements For Specimens Machined From Bolts And Studs | ||||
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Bolt or Stud Diameter, In. | ||||
Yield Strength | Tensile Strength | Elongation | Reduction | |
Mpa | Mpa | % | % | |
min | min | min | min | |
1/4 to 1, incl | 635 | 825 | 14 | 35 |
over 1 to 11/2, incl | 560 | 725 | 14 | 35 |
over 11/2 to 3, incl | 620 | 400 | 14 | 35 |
Tensile Requirement For Coarse-Thread Full Size Bolts And Studs | ||||||||||||
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Bolt or Stud Diameter, in. | ||||||||||||
01-Apr | May-16 | 03-Aug | Jul-16 | 01-Feb | Sep-16 | 05-Aug | 03-Apr | 07-Aug | 1 | |||
Threads Per inch | 20 | 18 | 16 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | ||
Stress Area, in | 0.0318 | 0.0524 | 0.0775 | 0.1063 | 0.1419 | 0.182 | 0.226 | 0.334 | 0.462 | 0.606 | ||
Tensile Load, min | 3800 | 6300 | 9300 | 12750 | 17050 | 21850 | 27100 | 40100 | 55450 | 72700 | ||
Proof Load, Length Measurement Metthod | 2700 | 4450 | 6600 | 9050 | 12050 | 15450 | 19200 | 28400 | 39250 | 51500 | ||
Alternative Proof Load, Yield Strength Method | 2900 | 4800 | 7100 | 9800 | 13050 | 16750 | 20800 | 30700 | 42500 | 55750 | ||
1 1/8 | 1 1/4 | 1 3/8 | 1 1/2 | 1 3/4 | 2 | 2 1/4 | 2 1/2 | 2 3/4 | 3 | |||
Threads Per inch | 7 | 7 | 6 | 6 | 5 | 4 1/2 | 4 1/2 | 4 | 4 | 4 | ||
Hardness | ||
---|---|---|
Bolt or Stud Diameter, In. | BHN | HRC |
1/4 to 1, incl | 255-321 | 25-34 |
over 1 to 11/2, incl | 223-285 | 19-30 |
over 11/2 to 3, incl | 183-235 | - |
Heat Treatment | ||||
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Quenched & tempered | ||||
Equivalent Designation | ||
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UNS | ||
EN number | ||
EN Name | ||
W.Nr. | ||
SS | ||
AFNOR | ||