30CrMnSiA steel plate

Aug 25, 2025 Leave a message

Gnee steel is specialized in supplying Alloy steel plate in 30CrMnSiA. For more information of 30CrMnSiA steel plates, please check them in following:

 

GB/T 11251 30CrMnSiA alloy steel plates chemical composition:

Grade

C

Si

Mn

Cr

Mo

Ni

W

B

Al

Ti

V

30CrMnSiA

0.28-0.34

0.90-1.20

0.80-1.10

0.80-1.10

 

 

 

 

 

 

 

GB/T 11251 30CrMnSiA alloy sheets mechanical properties:

Grade

Tensile Strength [Mpa]

Elongation [%,min]

HBW (Max)

30CrMnSiA

550-750

19

229

 

wechat2025-07-29171557751

In a corrosive environment, the surface of 30CrMnSiA alloy structural steel plate forms a dense oxide film, which resists oxidation and corrosion attack. In addition, this material exhibits good corrosion resistance in a variety of organic and inorganic corrosive media, such as water, nitric acid, acetic acid and so on.


30CrMnSiA steel plate can still maintain good strength and stability at high temperature. After high temperature tempering treatment, its comprehensive performance is further improved. This material has high creep strength and lasting strength at high temperatures, and can withstand a variety of complex working environments. In addition, it has good high-temperature hardness and high-temperature toughness, ensuring reliability and safety under high-temperature conditions.

 

wechat2025-07-29171550561
Because of its excellent comprehensive performance, 30CrMnSiA low alloy steel plate is widely used in the manufacture of various military equipment and key components. For example, it is used in the manufacture of hull structures, turrets, tracks and other key parts of armored vehicles; in the manufacture of aircraft carriers and submarines for key structural parts; also used in the manufacture of missiles and rockets for key components, and so on. In addition, it is also widely used in the manufacture of various military instruments, meters and special molds and other precision parts.