F1554 Grade 55


Summary


F1554 Grade 55 is commonly used in many applications in the anchor bolt industry. Some examples include, but are not limited to the following: structural supports, strain poles, mast arms, Department of Transportation (DOT), and sag rods. F1554 Grade 55 has minimum yield strength of 55 ksi. F1554 Grade 55 is made of modified mild carbon steel and has higher yield strength than that of Grade 36. F1554 Grade 55 with an S1 supplement can be substituted for grade 36 at the manufacturer’s discretion.

Mechanical Properties


Grade Size Tensile, ksi Yield, Ksi min Yield, Mpa min Elong. % min RA % min
55 1/4"-2" 75 - 95 55 380 21 30
2-1/8” - 2-1/2” 75 - 95 55 380 21 22
2-5/8” – 3” 75 - 95 55 380 21 20
3-1/8” – 4” 75 - 95 55 380 21 18

 

Types of Finishes

F1554 Grade 55 anchor bolts can be manufactured in plain (black), mechanically galvanized, zinc or hot-dipped galvanized finishes, as well as others as per your request. AA Anchor Bolt, Inc. works with various facilities for quality assurance and quick turnarounds.


Welding

Not all F1554 Grade 55 is considered a weldable material. If weldability is needed, the customer must specify Supplementary Requirement S1.


Recommended Nuts and Washers


Grade Size
NUTS
Plain
Galvanized
Washers
55 1/4" - 1-1/2” A563A Hex A563A Heavy Hex
USS, SAE, F436
1-5/8” – 4” A563A Heavy Hex
A563A Heavy Hex
USS, SAE, F436