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<strong>GB/T1591 Q345D steel</strong> shall be done charpy V-notch impacting test under minus 20 centigrade.Many container manufacturers adpots these high tension strength to make offshore containers which can be used in deep oceans.
<strong>No. 45 steel </strong>is widely used in machinery, when it is not heat treated: HB≤229; heat treatment: normalizing; impact energy: Aku≥39J; high strength, good plasticity and toughness, 45# steel plate after quenching without tempering, the hardness is greater than HRC55 (Up to HRC62) is qualified. After heat treatment and tempering, it can reach HRC42-46, which can not only ensure its good mechanical properties, but also obtain the hardness requirements of the surface.
<strong>Steel grade Q345B</strong> is the most common used as high strength low alloy structural steel in industry area.Xinsteel can offer steel coils,steel plates,angles,channels for Q345B materials.The equivalent steel grade with Q345B are EN 10025-2 S355JR,ASTM A572/A572 A572 Grade 50 and DIN 17100 St52-3.
<strong>The high-quality carbon structural steel </strong>of No. 35 steel (GB/T699-2015) has good plasticity and appropriate strength, good process performance, and acceptable welding performance. It is mostly used in normalized and quenched and tempered states.
Q460D hot rolled steel round bars
<strong>Q460 </strong>steel is a Chinese steel grade of Low Alloy High Strength Structural Steel, Yield Strength is 460 MPa, data is tested with 16mm diameter steel bars or steel plates, tensile strength is 550-720 Mpa, test with steel bar Ø≤40mm.For Q460 steel equivalent, chemical composition and mechanical properties, please see the tables below.
T8-T10A hot rolled steel round bars
<strong>T8, T10 and T12 </strong>are carbon tool steels. They are very hard. The Brinell hardness in annealed state is more than 300.Manual saw blade is T12 material, just quenching, hardness is greater.10 and 20 are low carbon, high quality structural steel, very soft, Brinell hardness is less than 155.Therefore, the fitter saw, laborious, the saw is very easy to wear.
<strong>Q345 steel </strong>is a Chinese GB standard Low Alloy High Strength Structural Steel, material density is 7.85 g/cm3, tensile strength is 470-630 Mpa, and yield strength is 345 MPa, it has better properties than Q235. According to GB/T 1591 – 2008, Q345 material has 5 quality grades: Q345A, Q345B, Q345C, Q345D and Q345E.
10# hot rolled round steel bar
<strong>10# round steel </strong>is a high-quality low-carbon carbon steel, with good plasticity and toughness, easy to be formed by cold and hot processing, good cutting performance after normalizing or cold working, excellent weldability, no temper brittleness, hardenability and hardenability difference. Manufacturing parts that require low stress and high toughness, such as car bodies, receptacles, deep-drawn vessels, tubes, gaskets, etc., can be used for cold rolling, cold stamping, cold heading, cold bending, hot rolling and #other processes. It can also be used as carburizing parts and carbonitriding parts with low core strength.
20MnCr5 hot rolled steel round bars
<strong>20MnCr5 steel </strong>is a low alloyed engineering case hardening steel for parts which require core tensile strength of 1000 – 1300 N/mm² and good wearing resistance. This steel is carburising steel used for components requiring high wear resistance surface, coupled with tough cores to resist shock loads and strength to give large service life.
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