GB/T 11251 20Cr hot rolled structure steel plates

GB/T 11251 20Cr hot rolled structure steel plates chemical composition:

Unified Numeral Code

Grade

C

Si

Mn

Cr

Mo

Ni

W

B

Al

Ti

V

A20202

20Cr

0.18-0.24

0.17-0.37

0.50-0.80

0.70-1.00

GB/T 11251 20Cr 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]
A20202	20Cr	400-650	20

BBN GB/T 11251 20Cr hot rolled structure steel plates are famous for wide application on international market and its excellent performace. Welcome to contact BBN steel to consult and purchase GB/T 11251 20Cr hot rolled alloy steel plates.

GB/T 11251 20Cr hot rolled structure steel plates are widely used to manufacture carburized parts (oil quenching) that have high requirements for core strength, bearing surface wear, section below 30mm, shape is complex and load is small. For example: machine transmission gear, gear shaft, cam, worm, piston pin, claw clutch. For parts with small heat treatment deformation and high resistance, high-frequency surface hardening is needed after carburizing, such as gear whose modulus is less than 3, shaft, spline shaft and so on. GB/T 11251 20Cr hot rolled structure steel plates can also be used in quenching and tempering condition to manufacture parts with larger working speed and medium impact load. GB/T 11251 20Cr hot rolled structure steel plates can also be used as low-carbon steel for martensitic quenching, which further increases yield strength and tensile strength of 20Cr steel (about 1.5 ~ 1.7 times).

GB/T 11251 20Cr 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.