GB/T 11251 40Cr hot rolled structure steel plates

GB/T 11251 40Cr hot rolled structure steel plates chemical composition:

Unified Numeral Code

Grade

C

Si

Mn

Cr

Mo

Ni

W

B

Al

Ti

V

A20402

40Cr

0.37-0.44

0.17-0.37

0.50-0.80

0.80-1.10

GB/T 11251 40Cr hot rolled structure steel plates mechanical properties:
1) The mechanical properties of steel plates delivered in annealed state shall be in accordance with the provisions of the table below.
2) The steel plates delivered in normalizing state, under the condition of elongation comply with the table, the upper limit of tensile strength is allowed to be increased by 50Mpa.
3) The steel plates with thickness above 20mm, when the thickness is increased by 1mm, the elongation is allowed to lower by 0.25% (absolute value) than that of the table, but it should not exceed 2% (absolute value).

Unified Numeral Code	Brand No.	Tensile Strength [Mpa]	Elongation [%,min]
A20402	40Cr	550-800	16

BBN steel is professional exporter of GB/T 11251 40Cr hot rolled structure steel plates in China. GB/T 11251 40Cr grade equivalernt materials: DIN material No. 1.7035/1.7045, France AFNOR 42C4, France NF steel 38Cr4/41Cr4, Italy UNI 41Cr4, Belgium NBN 42Cr4, Sweden SS 2245, American AISI/SAE/ASTM 5140, Japan JIS steel grade SCr440 (H) /SCr440, the ISO 41Cr4.

BBN GB/T 11251 40Cr hot rolled structure steel plate is one of the most widely used steel in the machinery manufacturing industry. After quenched and tempered, GB/T 11251 40Cr hot rolled structure steel has good and comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity. The hardenability of the steel is good. GB/T 11251 40Cr hot rolled structure steel plate is also suitable for cyanidation and high frequency quenching in addition to quenching and tempering treatment. The cutting performance is better when the hardness is from HB174 to 229, the relative machinability is 60%.

GB/T 11251 40Cr hot rolled structure steel plates

UT(Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V-Notch Impact Test, The Third Party Test (such as SGS Test), Coated or Shot Blasting and Painting.

Packaging Details: Standard export seaworthy packing or as required.
Delivery Time: 30-50 days, 7 days for stock goods.
Loading Port: Shanghai ,Tianjin, Qingdao.
Offer Ability:5 000MT/Per Month.
MOQ: 1 Pcs.