Features and Benefits of Grade 10 Self-Locking Safety Hooks
Made of high strength alloy steel, raw materials exactly meet EN standard
Conform with EN1677 specifications
4 to 1 safety factor for overhead lifting purpose
Allows easy attachment to lifting chains or wire rope slings
Self-locking latch will not open under load, can effectively hold the loads and prevent accident slip.
Powder painting in blue color for high visibility. Different colors are available as per request.
Working load limit permanently shown on the body to instruct proper use under rated load.
Individually proof tested at 2.5 times of the working load limit.
Can be used under temperature -40゜C-200゜C without reducing of the working load limit
Mill test certificate available for each shipment.
Test and Quality Assurance of Grade 10 Self-Locking Safety Hooks
In order to prove the design, material, heat treatment and method of manufacture, each size of TITAN SUHE’s chain hooks has been type tested in the finished condition in order to demonstrate that the hooks possesses the required mechanical properties. The following testing procedures are particularly relevant:
The Manufacturing Proof Force (MPF) for the relevant size of the Grade 8 hooks is applied and removed. The dimensions after proof loading shall not alter from the original dimensions within the tolerances prescribed in our specifications and in the international standards.
The Breaking Force (BF) for each hooks and master links and size is verified. The verified value shall be at least equal to the Minimum Breaking Force (MBF) value. The MBF value is equal to the Working Load Limit (WLL) multiplied by the safety factor.
By fatigue testing in pulsator testing machines the toughest conditions of service are simulated.
During manufacture continuous process tests are carried out according to the requirements in our specifications and in the latest international standards. The following testing procedures are particularly relevant:
Each individual component and chain link is tested to the Manufacturing Proof Force (MPF) level before delivery. The MPF level is 2.5 times the WLL, equal to 62,5% of the Minimum Breaking Force.
3% of every production batch of forged components are subject to magnetic particle or dye penetrating examination. Visual inspection is carried out on each chain link and each forged component to detect defects.
During manufacture, samples are tested and the Minimum Breaking Force (MBF) value and the total ultimate elongation are verified.
During manufacturing, of chain and master links, samples are taken and the minimum bend deflection is verified.
