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50B Chemical composition, 50B Properties - Steel grades

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n Effect of heat treatment process on impact properties of In order to study the hardness and impact properties of GBT 11251 30CrMnSi steel with different quenching processes, two heat treatment processes were selected to study. First process is the conventional quenching process, the quenching temperature is 910 , tempering temperature according to 230, 330, 430, 530 and 430 .

GB/T 11251 20Cr hot rolled structure steel plates - Bebon

GB/T 11251 20Cr hot rolled structure 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. GB/T 11251 30CrMnSiA alloy steel plates - BEBON steelBBN 30CrMnSiA alloy steel plates are used for all kinds of special wear resistant parts of automobile and aircraft. Bebon International is a professional GB/T 11251 30CrMnSiA alloy steel plates steel exporter and a steel Stockist in china. We keep more than 1000 tons GB/T 11251 30CrMnSiA alloy steel plates steel in stock every month. GB/T 11251 30CrMnSiA hot rolled structure steel plates BBN 30CrMnSiA alloy steel are used for all kinds of special wear - resistant parts of automobile and aircraft. BBN Steel is specializing in GB/T 11251 30CrMnSiA hot rolled structure steel plates which is under GB/T specification.GB/T 11251 30CrMnSiA hot rolled structure steel plates has excellent mechanical properties and widely application.

GB/T 11251 40Cr hot rolled structure steel plates - BBN Steel

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. GB/T 11251-2009:Translated English of Chinese Standard Oct 27, 2018 · GB/T 11251-2009:Translated English of Chinese Standard. (GBT 11251-2009, GB/T11251-2009, GBT11251-2009):Hot-rolled alloy structural steel plates High strength GB/T 11251 35CrMnSiA steel plates for GB/T 11251 35CrMnSiA 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

Introduction of GB/T 11251 42CrMo ultra - steel plates

The physical property of GB/T 11251 42CrMo ultra high strength steel plate:1) Critical point temperature (approximate value):Ac1 = 730 degrees C, Ac3 = 800 degrees C, Ms = 310 degrees C. Q345b Steel Plate Hot Rolled-aegallery Steel Supplier8,900,000 TONS CAPACITY STEEL PLATE The thickness range of steel coil is from 1.2mm to 25.4mm, the thickness of steel plate can achieve to 700mm from 4.5mm, The supply capacity per year is about 8,900,000 tons steel plate/coil according to EN10025,EN10028,ASTM GB/T 11251-2009, PDF in English - Chinese StandardGB/T 11251-2009:PDF in English version (GBT11251-2009). Auto immediate delivery.