All forged components are individually magnaflux crack detected after heat treatment, they are then individually proof load tested to 2.5 times working load limit in accordance with EN1677. Only components fully compliant with all aspects of EN1677 can be used in chain slings certified to EN818-4. Our Grade 8 lifting components are suitable for use in a temperature range of -40°C up to 200°C without reduction in working load limit.