ASTM F 1554 Steel Anchor Bolts

ASTM F1554 Specification for Steel Anchor Bolts, 36, 55, and 105-ksi Yield Strength

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Grades of Anchor Bolts and two classes denoting thread class

Grade

 Tensile Strength,
ksi (MPa)		 Description
Yield Strength,
min, ksi (MPa)		 Size Range,
in. (mm)
36 A 58–80 (400–558) 36 (248) 1⁄4 –4 (6.4–102)
55 75–95 (517–655) 55 (380) 1⁄4 –4 (6.4–102)
105 125–150 (862–1034) 105 (724) 1⁄4 –3 (6.4–76)

Class
1A anchor bolts with Class 1A threads
2A anchor bolts with Class 2A threads
A When Grade 36 is specified, a weldable Grade 55 may be furnished at the supplier’s option.
 

Chemical Requirements for Grade 36

Element Diameter, in. (mm)
To 3⁄4 (20), incl Over 3⁄4 to 11⁄2
(20 to 40), incl		 Over 11⁄2 to
4 (40 to 100),incl
Carbon, max, %
    Heat 0.26 0.27 0.28
    Product 0.29 0.30 0.31
Manganese, %
    Heat A 0.60–0.90 0.60–0.90
    Product A 0.54–0.98 0.54–0.98
Phosphorus, max, %
    Heat 0.04 0.04 0.04
    Product 0.05 0.05 0.05
Sulfur, max, %
    Heat 0.05 0.05 0.05
    Product 0.06 0.06 0.06
Copper, min, % (when specified)
    Heat 0.20 0.20 0.20
    Product 0.18 0.18 0.18
A Optional with the manufacturer but shall be compatible with weldable steel.

Chemical Requirements for Grades 55 and 105

Element Composition, %
Heat Analysis Product Analysis
Phosphorous, max 0.040 0.048
Sulfur, max 0.050 0.058
Copper, min (when Cu is
specified)		 0.20 0.18

Tensile Properties for Bars and Machined Specimens

Grade
36 55 105
Tensile strength, ksi 58–80 75–95 125–150
Tensile strength, MPa (400–552) (517–655) (862–1034)
Yield strength, min, ksi (0.2 % offset) 36 55 105
Yield strength, min, MPa (0.2 % offset) 248 380 724
Elongation in 8 in. (200 mm), min, %A 20 18 12
Elongation in 2 in. (50 mm), min, %A 23 21 15
Reduction of Area, min, %
    1⁄4 to 2 in. (6.4 to 50 mm), incl 40 30 45
    over 2 to 21⁄2 in. (50 to 63 mm), incl 40 22 −45
    over 21⁄2 to 3 in. (63 to 76), incl 40 20 45
    over 3 to 4 in. (76 to 102 mm), incl 40 18 . . .
A Elongation in 8 in. (200 mm) applies to bars. Elongation in 2 in. (50 mm) applies to tests on machined specimens.

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