Steel Plate

2More importantly, two of the yield strength of steel by the thickness of different packet size there is a big difference, and this is bound to cause some of the thickness of the material to change in allowable stress. Therefore, simply let the allowable stress of 16Mn steel applied to the Q345 steel is inappropriate, and it should be based on the new packet sizesteel thicknessallowable stress re-established.

1Q345 steel is the replacement of old issue of 12MnV, 14MnNb, 18Nb, 16MnRE, 16Mn stee and not just a material to replace steel 16Mn. In the chemical composition, 16Mn and Q345 are also different.

0.02-0.2

0.015-0.06

0.02-0.15

0.015

0.035

0.035

0.55

1.0-1.6

0.2

Content

Ti

Nb

V

Ai

S

P

Si

Mn

C

Element

1,Q345 has a good comprehensive mechanical properties, welding performance, technology and performance