Crankshaft

[0012] Example 1:

[0013] A crankshaft comprises the following components in parts by weight: 0.28 part of chromium, 0.16 part of strontium, 0.3 part of copper, 0.2 part of molybdenum, 0.14 part of antimony, 0.18 part of barium, 0.3 part of manganese, and the balance is iron and inevitable impurities.

[0014] Example 2:

[0015] A crankshaft, comprising the following components by weight: 0.38 parts by weight of chromium, 0.25 parts by strontium, 0.4 parts by copper, 0.23 parts by molybdenum, 0.17 parts by antimony, 0.2 parts by barium, 0.3 parts by manganese, and the remainder being iron and inevitable impurities.

[0016] This kind of crankshaft includes chromium, strontium, copper, molybdenum, antimony, barium, iron and manganese. In particular, elements such as chromium and strontium are added to the crankshaft components, which greatly improves the strength and toughness of the crankshaft, and can also be used for a long time. There is no risk of fracture, and it has a good application prospect and is worthy of promotion.