• Improper welding of X80 pipeline may cause cracks
• Brief introduction of API X52 pipeline steel
• The difference between PSL1 and PSL2
• Harm of inclusions in X70 pipeline steel
• API 5L pipeline pipe
• X52 steel plate surface quality standards that need to be met
• The basic production process of API 5L X60 pipeline steel
• The key to Q460D steel welding process
• What does the heat treatment of Q690 Steel include?
• Reasons for choosing Q690D steel

51CrV4 is steel suitable for springs

51CrV4 is a more advanced spring steel, which is used as a high-load important spring with a large cross-section and a valve spring, piston spring, and safety valve spring with a working temperature <300 °C.

For springs, the greater the yield ratio of steel, the better its reliability, for the following reasons:
Because the deformation of 51CrV4 steel is linear when the force does not exceed the yield point, that is, it will return to its original shape after unloading; if the force exceeds the yield point, 51CrV4 steel will produce plastic deformation. Under the same load increment, the deformation of 51CrV4 steel that has passed the yield point is larger than that of the 51CrV4 steel that has not passed the yield point.

So for mechanical components, of course, 51CrV4 steel with small deformation is better, then the yield of 51CrV4 steel should be close to the ultimate breaking strength of steel, that is to say, 51CrV4 steel with large yield ratio is used for spring reliability high.