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.

Related Specifications of ASTM A489 Bolting

A193 F541

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

A153/A153M Specification for Hot Dip Galvanising (Zinc Coating) on Iron and Steel Hardware
B633 Specification for Electrodeposited Coatings of Zinc on Iron and Steel
B695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
B696 Specification for Coatings of Cadmium Mechanically Deposited
B766 Specification for Electrodeposited Coatings of Cadmium
F1941/F1941M Specification for Electrodeposited Coatings on Mechanical Fasteners, Inch and Metric
F2329/F2329M Specification for Zinc Coating, Hot-Dip, Requirements for Application to Carbon and Alloy Steel Bolts, Screws, Washers, Nuts, and Special Threaded Fasteners

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)

ASME Dimensional Standards

B18.15 - Forged Eye Bolts (Inch Series)

ASTM A489 Bolting Certifications

  • EN 10204 3.1
  • EN 10204 3.2
  • PED 2014/68/EC
  • MERKBLATT AD 2000 W2/W7/W10
  • API 20 E BSL 1/ BSL 2
  • NACE MR 0175
  • NACE MR 0103

ASTM A489 Testing Standards

A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
E112 Test Methods for Determining Average Grain Size
F606/F606MTest Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners,Washers, Direct Tension Indicators, and Rivets
F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
F1789Terminology for F16 Mechanical Fasteners

ASME Threading Specifications

ASME B1.1 Unified Inch Screw Threads (UN and UNR Thread Form)
ASME B1.3 Screw Thread Gaging System for Dimensional Acceptability - Inch Screw Threads (IN, UNR, and UNJ)
ASME B1.13M Metric Screw Threads- M Profile
ASME B1.21M Metric Screw Threads - MJ Profile
ASME B1.2 Gauges & gauging for Unified Screw Threads(Imperial)

ASTM A489 Supplementary Requirements

S1 Proof Load Tests
S2 Impact Tests
S3 Grain Size Test
    (A) Based on tensile strength of 65 000 psi. Values are rounded to the nearest 100 lbs