ASME B18.15-2015 pdf – Forged Eyebolts
ASME B18.15-2015 pdf – Forged Eyebolts.
6 SHANK LENGTh
Shank length includes the chamfer to the underside of the eye ring for plain pattern (straight shank) nd to the faced collar for shoulder pattern eebofts.
7.1 Carbon and Alloy Steel Forged
The material and mechanical property requirements for general purpose carbon steel evebolts shall be in accordance with ASTM A489. Evebolts requiring improved toughness or intended primarily for tempera. lure applications to -40°F (-4(1 C) shall be in accordance with ASTM 1311. ASTM A489 and ASTM 1311 eyebolts shall be capable of meeting the rated capacities of Tables 3 and 4.
7.2 CorrosIon-Resistant Steel Forged
When corrosion-resistant steel is required, refer to ASTM A473, alloy types 304, 3041 or 316, and 316L. F.yebolts of ASTM A473 materials shall be capable of meeting the rated capacities of lables 3 and 4. The alloy type as listed in ASTM A473 shall be marked on the eyeIolt eye.
7.3 Other Materials
When other materials are required, the material shall be as agreed upon by the purchaser and supplier.
8.1.1 Unless otherwise specified, eyebolb shall be supplied with a natural (as precessed) finish. unpbted or uncoated, in a clean condition, and lightly oiled.
8.1.2 When zinc plating is specified. ASTM F1941 shall be designated. Other finishes may be used based on an agreement between the purchaser and supplier. (This is not recommended see para. C-7 in Nonmandatory Appendix C.)
8.2 Corrosion-ResIstant SteeLs
Corrosion-resistant steels shall be passivated in accordance with ASTM A30.
Evebolts shall be designated by the following data in the sequence shown below:
(a) ASME 818.15
(b) nominal size (fractional or decimal equivalent) and threads per inch
(f) material (including standard), including alloy type if stainless steel
(g) surface treatment (when specified incinding standard number), including required callout 1mm standard
EXAMPLE: ASME HIttIS. ilrló. plain pattern (4rai8ht stank).
Type 1. Style A. steel per ASTSI A489. zinc plated per
ASTM F1941 SAT
10 QUALITY ASSURANCE
Eyebolls shall be free from visible defects that might affect serviceability. Eyebolts should be routinely visually inspected for such dcfccts according to
10.2 DImensional Conformance
Unless otherwise specified. all characteristics shall be inspected to the inspection levels shown in
10.3 Tensile Properties
The tensile properties shall be determined in accordance with ASTM F606 using the thread engagements as prescribed in Nonmandatory Appendix C.
10.4 Surface Discontlnulties
The inspection and evaluation of surface discoritinuities shall be in accordance with the requirements in ASTM F78$/F7s8M Threads shall have no laps at the root or on the (Lank located below the pitch diameter.
Each eyvbolt shall have the manufacturer’s name or identification mark forged in raised characters on the su,face of the lifting eye.
Two methods are currently used in specifying the capacities of forged steel eyebolts. One is more commonly used by riggers and shop personnel, while the other is generally preferred by engineers and designers of lifting rigs. Care must be cseitised in selecting and using the correct type of capacity for each application.
A-2 RIGGER’S CAPACITY
The rigger’s capacity refers to the actual load a single eyebolt can lift. The allowable load varies with the angle between the leg of the Lifting rig and the shank of the eye1olt. In generaL it also assumes that the load to be lifted acts along the axis through the shank. (The primary exception is where the eyebolts are mounted on the sides of the load.) Rigger’s capacities are most easily used when the enbolts a’ mountcd on the top of a uniformly distributed load. In such cases, the total load Is divided by the number of evebolts lobe used for the lift in order to determine the required capacil taking into account the angle of the legs of the rig. Figure A-I shows such an application.