Jiaxing City Qunbang Hardware Co., Ltd
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F1554 90 Degree Anchor Bolt HD Steel Columns Carbon Steel Bolt
Specification
Bent anchor bolts are embedded in concrete and used to support structural steel columns, light poles, highway sign structures, bridge rail, equipment, and many other applications. The bent portion, or “leg” of the anchor bolt, serves to create resistance so that the bolt does not pull out of the concrete foundation when force is applied.
QBH bolt also manufactures other concrete anchor bolt configurations including anchor rods, headed anchor bolts, and swedged rods.
Custom bent bolts are typically dimensioned as follows:
Diameter (D) x Length (L) x Leg distance (C) x Thread (T)
QBH Bolt manufactures custom bent anchor bolts from 1/2″ – 2″ diameter to virtually any ASTM specification. They are provided either plain finish or hot-dip galvanized. Stainless steel anchor bolts are also manufactured. All operations, including the galvanizing process, are performed in-house.
F1554 SPECIFICATION
The ASTM F1554 specification was introduced in 1994 and covers anchor bolts designed to anchor structural supports to concrete foundations. F1554 anchor bolts can take the form of either headed bolts, straight rods, or bent anchor bolts. The three grades 36, 55, and 105 designate the minimum yield strength (ksi) of the anchor bolt. The bolts can be either cut or roll threaded and a weldable grade 55 can be substituted for grade 36 at the supplier’s option. Color coding on the end – 36 blue, 55 yellow, and 105 red – helps facilitate easy identification in the field. Permanent manufacturer and grade marking is allowed under the S2 supplementary requirements.
Applications for F1554 anchor bolts include columns in structural steel framed buildings, traffic signal and street lighting poles, and overhead highway sign structures to name just a few.
| F1554 Grade 36 | Low carbon, 36 ksi yield steel anchor bolts |
|---|---|
| F1554 Grade 55 | High strength, low alloy, 55 ksi yield steel anchor bolts |
| F1554 Grade 105 | Alloy, heat treated, high strength 105 ksi yield steel anchor bolts |
Supplementary requirements shall apply only when specified in the purchase order or contract.
S1: Weldable version of the Grade 55 specification. Through chemical composition restrictions and by a carbon equivalency formula, S1 provides assurance of weldability. When S1 is not specified, the Grade 55 material may or may not be weldable.
S2: Permanent manufacturer’s identification on the end of the anchor bolt that projects from the concrete, in lieu of color-coding.
S3: Permanent grade identification on the end of the anchor bolt that projects from the concrete, in lieu of color-coding.
S4: Charpy Impact requirements at +40⁰F (+5⁰C) for grades 55 and 105. The minimum Charpy V-notch energy requirement is an average of 15ft-lbs for three specimens, with no one specimen falling below 12ft-lbs. Charpy Impact requirements at -20⁰F (-29⁰C) for grade 105. The minimum Charpy V-notch energy requirement is an average of 15ft-lbs for three specimens, with no one specimen falling below 12ft-lbs.
| Grade | Marking | Size inches | Tensile, ksi | Yield, ksi min | Yield, MPa min | Elong. % min | RA % min |
|---|---|---|---|---|---|---|---|
| 36 | QBH Gr36 | 1⁄2 - 4 | 58 - 80 | 36 | 248 | 23 | 40 |
| 55 | QBH Gr55 | 1⁄2 - 2 | 75 - 95 | 55 | 380 | 21 | 30 |
| 21⁄4 - 21⁄2 | 75 - 95 | 55 | 380 | 21 | 30 | ||
| 23⁄4 - 3 | 75 - 95 | 55 | 380 | 21 | 30 | ||
| 31⁄4 - 4 | 75 - 95 | 55 | 380 | 21 | 30 | ||
| 105 | QBH Gr105 | 1⁄2 - 3 | 125 - 150 | 105 | 724 | 15 | 45 |
| |||||||
| Element | Grade 36 | Grades 55 and 105 | ||
|---|---|---|---|---|
| Sizes up to 3/4 | Sizes over 3/4 to 1-1/2 | Sizes over 1-1/2 to 4 | ||
| Carbon (max) | 0.26% | 0.27% | 0.28% | |
| Manganese | * | 0.60 - 0.90% | 0.60 - 0.90% | |
| Phosphorus, max | 0.04% | 0.04% | 0.04% | 0.040% |
| Sulfur, max | 0.05% | 0.05% | 0.05% | 0.050% |
| Copper, min (when specified) | 0.20% | 0.20% | 0.20% | 0.20% |
| * Optional with the manufacturer but shall be compatible with weldable steel | ||||
| Grade | Identification | Size Inches | Recommended A563 Nut | Washer | |||
|---|---|---|---|---|---|---|---|
| Plain Finish | Hot-Dip or Mechanical Zinc Coated | ||||||
| Grade | Style | Grade | Style | ||||
| 36 | QBH Gr36 | 1⁄2 – 11⁄2 | A | Hex | A | Hex | F436 |
| 15⁄8 – 4 | A | Heavy Hex | A | Heavy Hex | |||
| 55 | QBH Gr55 | 1⁄2 – 11⁄2 | A | Hex | A | Heavy Hex | F436 |
| 15⁄8 – 4 | A | Heavy Hex | A | Heavy Hex | |||
| 105 | QBH Gr105 | 1⁄2 – 11⁄2 | D1 | Heavy Hex | DH2 | Heavy Hex | F436 |
| 15⁄8 – 3 | DH2 | Heavy Hex | DH2 | Heavy Hex | |||
| 1 A563 grade D nuts are rarely available. A563 grade DH or A194 grade 2H should be substituted. 2 The availability of A563 grade DH nuts in nominal sizes 1″ and larger is very limited and generally available only on special orders of 50,000 or more. For smaller quantities, ASTM A194 grade 2H should be considered. | |||||||
PACKING
QBH BULK
20-25KG/CTN,36CTNS/PALLET
20-30KG/BAGS,36BAGS/PALLET
ONE TON/BOXES
50KG/ IRON DRUM,12 IRON DRUMS/PALLET
QBH SMALL PACKING
Packing in small boxes according to customer’s requirements
Packing in plastic bag according to customer’s requirements
QBH PALLET TYPE
SOLID WOOD FUMIGATION PALLET
EURO Pallet
THREE SPLINT PALLET
WOODEN BOX
The advantages of QBH