Chemical Requirements
| Grade 36 |
Grades 55 and 105 |
||
| Element |
Diameters up to 3/4, incl. |
Over 7/8 to 4, incl. |
All Diameters |
| Carbon, max, % | |||
| Heat | 0.25 | 0.25 | |
| Product | 0.28 | 0.28 | |
| Manganese, % | |||
| Heat | 0.60-0.90 | ||
| Product | 0.54-0.98 | ||
| Phosphorus, max, % | |||
| Heat | 0.04 | 0.04 | 0.04 |
| Product | 0.05 | 0.05 | 0.048† |
| Sulfur, max, % | |||
| Heat | 0.05 | 0.05 | 0.05 |
| Product | 0.06 | 0.06 | 0.058† |
| Copper, min, % | |||
| (when specified) | |||
| Heat | 0.20 | 0.20 | 0.20 |
| Product | 0.18 | 0.18 | 0.18 |
†Editorially corrected in April 2016.
Classification
| Description | |||
| Grade | Tensile Strength, ksi (MPa) |
Yield Strength, min, ksi (MPa) |
Diameter Range, in. |
| 36 | 58-80 (400-558) | 36 (248) | 1/2 - 4 |
| 55 | 75-95 (517-655) | 55 (380) | 1/2 - 4 |
| 105 | 125-150 (862-1034) | 105 (724) | 1/2 - 3 |
| Class | |||
| 1A | anchor bolts with Class 1A threads | ||
| 2A | anchor bolts with Class 2A threads | ||
Specification for A563 Nut
| Anchor Bolt Grade and Diameter, in. |
Plain |
Hot-Dip or Mechanical Zinc-coated in |
|||
| Grade | Diameter, in. | Grade | Style | Grade | Style |
| 36 | 1/2 - 1 1/2 over 1 1/2 |
A | Hex | A | Hex |
| A | Heavy Hex | A | Heavy Hex | ||
| 55 | 1/2 - 1 1/2 over 1 1/2 - 4 |
A | Hex | A | Heavy Hex |
| A | Heavy Hex | A | Heavy Hex | ||
| 105 | All | DH | Heavy Hex | DH | Heavy Hex |
Tensile Properties for Bars and Machined Specimens
| Grade | |||
| 36 | 55 | 105 | |
| Tensile strength, ksi | 58-80 | 75-95 | 125-150 |
| Yield strength, min, ksi (0.2 % offset) | 36 | 55 | 105 |
| Elongation in 8 in., min, %A | 20 | 18 | 12 |
| Elongation in 2 in. min, %A | 23 | 21 | 15 |
| Reduction of Area, min, % | 40 | 30 | 45 |
AElongation in 8 in. applies to bars. Elongation in 2 in. applies to machined specimens.
Anchor Bolt with Hook
Anchor Bolt with Hook
h = length of hook
l = length of bolt
t = length of threads (exposed end)
t1 = length of threads (encased end), when required
z = length of zinc coating, min, when partial zinc coating is required
Product Marking
| Grade | Color | |
| 36 | Blue | |
| 55 | Yellow | |
| 55 - Weldable | Yellow (projecting end) & White (encased end) |
|
| 105 | Red | |
Permanent Grade Identification
| Grade | Indentification |
| 36 | AB36 |
| 55 | AB55 |
| 105 | AB105 |