ASTM A489 Forged Lifting Eye Bolts Specification

Carbon Steel Forged Lifting Eye Bolts

ASTM A489 Lifting Eyes, Lifting Eye Bolts

ASTM A489 includes Carbon Steel Forged Lifting Eye Bolts of two types denoting shank pattern and two styles denoting shank length (both defined in ASME B 18.15) of size range 1/4 inch to 2 1/2 inch.Eyebolts manufactured in accordance with this standard should only be used at temperatures between 32 °F and 275 °F. Refer to ASME B18.15 for additional usage guidance. For use at temperatures below 32 °F, refer to alloy steel eyebolts in accordance with Specification ASTM F541. Type 1 - Plain pattern (straight shank). Type 2 - Shoulder pattern. Style A - Long Length. Style B - Short length. Lifting eyes carrying as per ASTM A489 specification even after being liquid quenched and tempered may be processed from carbon steel which, in the composition range permitted by this specification, could have a fracture appearance transition temperature (50 % shear) higher than operating temperatures. Therefore, in order to minimize the possibility of a brittle cleavage failure, these lifting eyes should never be loaded above the proof load, and should not be used when surface discontinuities exist on the lifting eyes. Eyebolts manufactured in accordance with ASTM A489 should only be used at temperatures between 32 °F and 275 °F.

ASTM A489 Eye Bolt Types & Styles

Type 1 - Plain pattern (straight shank).
Type 2 - Shoulder pattern.
Style A - Long Length.
Style B - Short length.

ASTM A489 Chemical requirements

Element	Heat Analysis	Product Analysis
C	0.48 max	0.51 max
Mn	1.00 max	1.06 max
P	0.040 max	0.048 max
S	0.050 max	0.058 max
Si	0.15-0.35	0.12-0.38

ASTM A489 Mechanical Properties

Breaking Strength and Proof Load Requirements, Types 1 and 2

Nominal Thread Size	Thread Size	Tensile Stress AreaA	Breaking Strength, minB	Proof Load, minC
in.	in.	in.2	lbf	lbf
1/4	1/4 -20	0.0318	2 100	800
5/16	5/16 -18	0.0524	3 400	1 400
3/8	3/8 -16	0.0775	5 000	2 000
7/16	7/16 -14	0.1063	6 900	2 800
1/2	1/2 -13	0.1419	9 200	3 700
9/16	9/16 -12	0.182	11 800†	4 700
5/8	5/8 -11	0.226	14 700	5 900
3/4	3/4 -10	0.334	21 700	8 700
7/8	7/8 -9	0.462	30 000	12 000
1	1-8	0.606	39 400	15 800
11/8	11/8 -7	0.763	49 600	19 800
11/4	11/4 -7	0.969	63 000	25 200
11/2	11/2 -6	1.405	91 300	36 500
13/4	13/4 -5	1.90	123 500	49 400
2	2-41/2	2.50	162 500	65 000
21/2	21/2 -4	4.00	260 000	104 000
(A) Based on tensile strength of 65 000 psi. Values are rounded to the nearest 100 lbs. (B) Proof load is defined as 200 % of the 0 degree rated capacity specified in ASME B18.15 for Type 1 plain pattern eyebolts. Note that the rated capacity in ASME B18.15 is defined as 20 % of the A489 breaking strength. Values are rounded to the nearest 100 lbs.

Tensile Properties for Machined Specimens

Tensile strength	65 000-90 000 psi
Yield strength	30 000 psi
Elongation in 4D, min	30 %
Reduction of area, min	60 %

Bend Test

ASTM A489 Type 1 straight shank lifting eyes 11⁄2 in. (36.1 mm) or less in diameter, after being screwed into a steel block to the full thread length and bent 45° by pressure, shall not exhibit any visible surface ruptures in the unthreaded section of the lifting eye when examined at 10× magnification.

ASTM A489 Impact Strength

• The lifting eyes shall have an average Charpy V-notch impact strength of not less than 35 ft·lbf (47 J) at 0°C (32°F).
• The impact strength shall be the average of three specimens tested. Not more than one specimen shall exhibit a value below the specified minimum average, and in no case shall a value be less than 23 ft·lbf (31 J).
• Whenever possible, test specimens shall be taken from the shank and shall conform to the standard 10 by 10-mm Charpy V-notch specimen shown in Test Methods and Definitions A370. When lifting eyes are too small for standard-size specimens, subsize specimens may be used, or specimens that represent the same heat and have been subjected to the same forging and heat-treating practices as the lifting eyes they represent may be taken from separate test coupons.

ASTM A489 Grain Size Test

The finished lifting eyes shall have an as-finished grain size of ASTM No. 5 or finer. The grain size shall be rated from a broken tensile specimen end representing a heat treated lot of one size. Tests shall be conducted in accordance with Test Methods E112.

ASTM A489 Bolting Surface Treatment Specifications

ASTM A489 Bolting Components Marking

Product Shall be Marked with our manufacturing trade mark "TorqBolt" or "TB" along with the designated Grade.
Grade and manufacturer’s identification symbols shall be applied to one end of studs and to the heads of bolts and screws of all sizes. (If the available area is inadequate, the grade symbol may be marked on one end and the manufacturer’s identification symbol marked on the other end.) For bolts and screws smaller than 1⁄4 in. [6 mm] in diameter and studs smaller than 3⁄8 in. [10 mm] in diameter and for 1⁄4 in. [6 mm] in diameter studs requiring more than a total of three symbols, the marking shall be a matter of agreement between the purchaser and the manufacturer.

Grade	Marking
ASTM A489	TB A489 (raised)

ASTM A489 Supplementary Requirements