GB/T11251 40Cr alloy steel plate and sheet price

After tempering, 40Cr alloy has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity.
As a leading manufacturer of hot rolled plates, we can produce 40Cr alloy steel plates and sheets with thickness ra

Description

GB/T11251 40Cr steel is a hot rolled alloy structural steel plate and sheet. 40Cr steel is one of the most widely used steels in machinery manufacturing. After tempering, 40Cr alloy has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity.

As a leading manufacturer of hot rolled plates, we can produce 40Cr alloy steel plates and sheets with thickness ranging 4mm to 30mm. These steel plates are delivered in heat treatment condition(annealing, normalizing, tempering after normalizing).

GB/T11251 40Cr steel composition shall conform to GB/T 3077 standard as follows.

Grade	C	Si	Mn	Cr
40Cr	0.37-0.44	0.17-0.37	0.50-0.80	0.80-1.10

Mechanical properties

Grade	Tensile strength [Mpa]	Elongation [%,min]
40Cr	550-800	16

Decarbonization test

According to the buyer's requirements, the depth of the decarburized layer of the steel plate can be inspected as specified in GB/T 224. The thickness of the steel plate is not more than 20mm. The depth of the full decarburized layer (ferrite) should not exceed 2.5% of the nominal thickness of the steel plate on each side, and the sum of the two sides should not exceed 4.0%. For steel plates with a thickness greater than 20mm, each side shall not exceed 2.0% of the nominal thickness of the steel plate.

If you're interested in Chinese steel grade 40Cr hot rolled plate stock, please do hot hesitate to contact us.