Do you know the Chemical composition of Medium tolerance short link chain for chain slings - Grade 8
1.At first the steel shall contain alloying elements in sufficient quantities so that the finished chain, when heat treated in accordance with relevant regulation, complies not only with the mechanical properties specified in the standard of EN 818 but also possesses adequate low temperature ductility and toughness to provide resistance to impact loading.
2.The steel shall contain nickel and at least one of the other elements in the minimum percentages shown as below:
Nickel 0,40
Chromium 0,40
Molybdenum 0,15
3.To ensure that chain is stabilized against strain-age embrittlement during service, the steel shall contain at least 0,025% aluminium.
4.The steel shall contain no more sulphur and phosphorous content than the limits given as below:
Sulphur and phosphorous content (Maximum mass content % as determined by)
Cast analysis: 0.025,
Check analysis: 0.030
For more learning of the knowledge about the Medium tolerance short link chain for chain slings - Grade 8, Europe standard EN818 need to consult latish when need.