HOW TO ORDER ALLOY CHAIN SLINGS

Carefully review the aforementioned Alloy Chain Sling Information. The following details are required on orders or inquires.

CARE, USE & INSPECTION OF GRADE 80 CHAIN & SLINGS

CARE

1. WORKING LOAD LIMIT Select the proper size chain for the job keeping within the working load limits shown. The angle of inclination of the chain sling branches must be considered in determining the chain size for the job.
2. REMOVAL FROM SERVICE Before and after each use all chain slings regardless of type should be carefully inspected and if found defective removed from service immediately for repair or destruction.
3. OVERLOADING Individuals responsible for chain slings should repeatedly check the capacity of chain slings and the angle of loads to be lifted, thus avoiding overloading, the primary cause of damage to chain slings.
4. KINKS, TWISTS, KNOTS -These are to be avoided when applying the load to the sling..
5. STRETCH Detect stretch by conducting a visual link by link inspection of the chain sling. Once a chain has been stretched it is unfit for further service and is to be replaced.

   Chain Size	Max. Allowable Wear	Chain Size	Max. Allowable Wear
   1/4	3/64	5/8	9/64
   3/8	5/64	3/4	5/32
   1/2	7/64	7/8	11/64
   Table B

6. WEAR Wear occurs primarily on the inside of the links where the ad joining links are seated. When wear is noticed, separate each link, measure the bearing thickness at each end, and, if greater than TABLE B remove from service.

USE

1. ORGANIZATION OF CHAIN SLING MAINTENANCE A regular Chain Sling Maintenance system should be set up which will make certain individuals fully responsible. The result will be properly cared for slings, which will receive regular periodic inspections, causing unsafe slings to be removed from service.

2. CLEANING Chain Sling should be cleaned regularly as grit and dirt cause wear at link bearing point.

3. STORAGE Before prolonged storage, Chain Slings should be oiled and hung in a clean, dry place. They should never be placed on the floor as they are subject to damaging abuse.

4. ANNEALING Never anneal. Alloy chain is heat treated to provide high strength and long wear and annealing will damage the effects of the heat treatment.

INSPECTION

1. CLEAN Clean before inspection to detect gouges, nicks, and bent links.

2. HANG IN VERTICAL POSITION Provides quick preliminary inspection.

3. MEASURE THE REACH If the uniform reach of the assembly exceeds 6% of the original length, the assembly is to be removed from service.

4. STRETCH AND WEAR INSPECTION Lift each link and look for grooving. If grooving is not apparent, check clearance between links.

5. LINK BY LINK INSPECTION Check each link -the following are danger signs: twisted and bent links, cracks in any selection of the link, marks, scores or nicks, pits from corrosion, lifted fins, (usually caused by overloads), wear at bearing points, stretched links, binding, caused by link collapse at the sides because of stretch or by being crushed under a load.

6. ATTACHMENTS Check master links, pear-shaped links, rings, etc., for above defects. Look for spread in the throat of the hooks, Watch for gouged or deformed attachments.

 IMPORTANT WARNING:

Failure to follow the usage recommendation contained herein could result in premature failure of the chain possibly causing severe injury or death.

Grade 80 Alloy Sling Specifications

Chain Size Inches	Single Sling at 90° Angle	Double Sling at 60° Angle	Double Sling at 45° Angle	Double Sling at 30° Angle	Triple/Quadruple Sling at 65° Angle	Triple/Quadruple Sling at 45° Angle	Triple/Quadruple Sling at 30° Angle	Chain Size
1/4	4100	7100	5800	4100	10600	8700	6150	1/4
3/8	7300	12600	10300	7300	19000	15500	11000	3/8
1/2	13000	22500	18400	13000	33500	27500	19500	1/2
5/8	20300	35000	28500	20300	53000	43000	30500	5/8
3/4	29300	50500	41500	29300	76000	62000	44000	3/4
7/8	39900	69000	56500	39900	104000	85000	60000	7/8

DO NOT EXCEED WORK LOAD LIMIT OR 20% OF THE PRODUCT'S BREAK STRENGTH.

 

 

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