ASTM F1554-15

Scope
This specification covers straight, bent, headed and headless anchor bolts/rods made of carbon, medium carbon boron, alloy, or high-strength low alloy steel. Anchor bolts are used for anchoring structural supports (ie columns/sign structures) to concrete foundations. This specification does not cover mechanical expansion anchors, powder-activated nails/studs or anchor bolts fabricated from deformed bar (rebar.)

ASTM F1554-15 Classification

GradeTensileYield StrengthDiameter Range
3658-80 ksi36 ksi1/2"to 4"
5575-95 ksi55 ksi1/2" to 4"
105125-150 ksi105 ksi1/2" to 3"
Class
1A anchor bolts with Class 1A threads
2Aanchor bolts with Class 1A threads
Source: ASTM F1554-15

F1554-15 Table 1 Chemical Composition Requirements

Element Grade 36Grade 36Grade 55 & 105
Dia up to 3/4"7/8 to 4" All Dia
Carbon, max % - Heat0.250.25-
Carbon, max % - Product0.280.28-
Maganese, % - Heat-0.6 - 0.9-
Maganese, % - Product-0.54 - 0.98-
Phosporus, max % - Heat0.040.040.04
Phosporus, max % - Product0.050.050.48
Sulfur, max % - Heat0.050.050.05
Sulfur, max % - Product0.060.060.58
Copper min %* - Heat0.20.20.2
Copper min %* - Product0.180.180.18
Source: ASTM F1554-15

8. Chemical Composition

8.2 Grade 55 ordered as weldable shall conform to the requirements specified in Supplementary Requirement S1.

Table 2 Axial Tensile Properties for Full-Size Tests of Anchor Bolts & Drawn Coupons

   Grade 36Grade 36Grade 55Grade 55Grade 105Grade 105
DiameterThreadsStressArea ᴮTensile Strength, lbfYield min, lbfTensile Load, lbfYieldmin,lbfTensileLoad,lbfYieldmin,lbf
Unified Course Thread Series (UNC)
1/213 UNC0.14198,200-11,4005,100106,00-13,5007,80017,700-21,30014,900
5/811 UNC0.22613,100-18,1008,10017,000-21,50012,40028,200-33,90023,700
3/410 UNC0.33419,400-26,70012,00025,000-31,70018,40041,800-50,10035,100
7/89 UNC0.46226,800-37,00016,60034,600-43,90025,40057,800-69,30048,500
18 UNC0.60635,200-48,50021,80045,400-57,60033,30075,800-90,90063,600
1-1/87 UNC0.76344,300-61,00027,50057,200-72,50042,00095,400-114,40080,100
1-1/47 UNC0.96956,200-77,50034,90072,700-92,10053,300121000-14500010,2000
1-1/26 UNC1.40581,500-112,40050,60010500-13300077,300176000-21600014,8000
1-3/45 UNC1.9110,000-152,00068,400142,000-180,000104,500238000-28500020,0000
24-1/2 UNC2.5145,000-200,00090,000188,000-238,000138,000312000-37500026,2000
2-1/44-1/2 UNC3.25188,000-260,000117,000244,000-309,000179,000406000-48800034,1000
2-1/24 UNC4232,000-320,000 144,000300,000-380,000220,000500000-60000042,0000
2-3/44 UNC4.93286,000-394,000177,00070,000-468,000271,000616000-74000051,8000
34 UNC5.97346,000-478,000215,000448,000-567,000328,000746000-89600062,7000
3-1/44 UNC7.1412,000-568,000256,000532,000-674,000390,000--
3-1/24 UNC8.33483,000-666,000300,000625,000-791,000458,000--
3-3/44 UNC9.66560,000-773,000348,000724,000-918,000531,000--
44 UNC11.08643,000-886,000399,000831,000-1,053,000609,000--
8 Thread Series (8 UN)
1-1/88 UN0.7945,800-63,20028,40059,200-75,00043,40098,800-11850083,300
1-1/48 UN158,000-80,00036,00075,000-95,00055,000125,00-150000105,000
1-1/28 UN1.49286,500-119,40053,700112,000-142,00082,100186,000-224000157,000
1-3/48 UN2.08121,000-166,00074,900156,000-198,000114,000260,000-312000218,000
28 UN2.77161,000-222,00099,700208000-263000152,000346,000-416000291,000
2-1/48 UN3.56206,000-285,000128,000267,000-338,000196,000445,000-534000374,000
2-1/28 UN4.44258,000-355,000160,000333,000-422,000244,000555,000-666000466,000
2-3/48 UN5.43315,000-434,000195,000407,000-516,000299,000679,000-815000570,000
38 UN6.51378,000-521,000234,000488,000-618,000358,000814,000-976000684,000
3-1/48 UN7.69446,000-615,000277,000577,000-731,000423,000--
3-1/28 UN8.96520,000-717,000323,000672,000-851,000493,000--
3-3/48 UN10.34630,000-827,000372,000776,000-982,000569,000--
48 UN11.81685,000-945,000425,000 886,000-1,122,000650,000--
Source: ASTM F1554-15

ASTM F1554-15 Table 3 Tensile Properties for Bars and Machined Specimens

 Grade 36Grade 55Grade 105
Tensile Strength ksi58 - 8075 - 95125 - 150
Yield Strength, min ksi (.2% offset)3655105
Elongation in 8 in min % ᴬ201812
Elongation in 2 in min % ᴬ232115
Reduction of Area, min %403045
Source: ASTM F1554-15

Table 4: Minimum Body Diameters

DiameterThreads Body Diameter, min
Rolled Threads ᴮ
Class 1A --- Class 2A
Cut Threads ᶜ
Class 1A & 2A
1/213 UNC0.44110.44350.4822
5/811 UNC0.55610.55890.6052
3/410 UNC0.67440.67730.7288
7/89 UNC0.79140.79460.8523
18 UNC0.90670.910.9755
1-1/87 UNC1.01911.02281.0982
1-1/47 UNC1.14391.14761.2232
1-1/26 UNC1.37721.38121.4703
1-3/45 UNC1.6041.60851.7165
24-1/2 UNC1.83851.84331.9641
2-1/44-1/2 UNC2.08822.09312.2141
2-1/24 UNC2.3192.32412.4612
2-3/44 UNC2.56862.57392.7111
34 UNC2.81832.82372.9611
3-1/44 UNC3.0683.07343.211
3-1/24 UNC3.31773.32333.461
3-3/44 UNC3.56743.5733.7109
44 UNC3.81723.82293.9609
8 Threads Series (8UN)
1-1/88UN-1.03481.1004
1-1/48UN-1.15971.2254
1-1/28UN-1.40931.4753
1-3/48UN-1.6591.7252
28UN-1.90871.9752
2-1/48UN-2.15842.2251
2-1/28UN-2.40822.4751
2-3/48UN-2.6582.725
38UN-2.90772.9749
3-1/48UN-3.15753.2249
3-1/28UN-3.40743.4749
3-3/48UN-3.65713.7248
48UN-3.9073.9748
Source: ASTM F1554-15

S1. Supplementary Requirements: Weldable Grade 55 Bars and Anchor Bolts

S1.1 The material described in this section is intended for welding. This supplemental section, by chemical composition restrictions and by a carbon equivalent formula, helps to provide assurance of weldability.

S1 Supplement: Weldable Grade 55 Chemical Composition

ElementHeat AnalysisProduct Analysis
Carbon, max %0.30.33
Manganese, max %1.351.41
Phosphorus, max %0.040.048
Sulfur, max %0.050.058
Silicon, max %0.50.55
Source: ASTM F1554-15 S1.4.1

S1.1 Grades 55 and 105 Energy Requirements: Charpy V-Notch Energy Requirements

Average for 3 Specimens, min ft ·lbfMinimum for 1 Specimen, ft ·lbf
1512
Source: ASTM F1554-15 Table S1.1

ASTM F1554-15 was approved on September 1st 2015

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