On March 19, 2020 the us international trade commission (ITC) vote on imports from China and India's carbon alloy SA573 Grade 70 structural carbon steel angle bar steel screw (Carbon and Alloy Steel Threaded Rod) to make a positive final anti-dumping
On March 19, 2020 the us international trade commission (ITC) vote on imports from China and India's carbon alloy SA573 Grade 70 structural carbon steel angle bar steel screw (Carbon and Alloy Steel Threaded Rod) to make a positive final anti-dumping and anti-subsidy industry damage. All five members of the international trade commission voted in favor of the ruling. The us department of commerce will issue anti-dumping and countervailing duty orders on imports of SA573 Grade 70 structural carbon steel angle bar carbon alloy steel screws from China and India, according to the itc's affirmative ruling.
The research methods of isothermal treatment of SA573 Grade 70 structural carbon steel angle bar, wear-resistant plate include many excellent technologies, such as optical microscope, transmission electron microscope, X-ray diffractometer and electron backscatter diffraction technology. With the increase of annealing temperature, the proportion of ferrite in wear-resistant plate will gradually decrease, and bainite will increase, while the retained austenite will be distributed in ferrite grain boundary and crystal in elliptical and fine strip shape.
NM450 steel plate thickness≦80mm. SA573 Grade 70 structural carbon steel angle bar, NM450 wear-resistant steel plates are used in engineering machinery, mining machinery, coal mining machinery, environmental protection machinery, metallurgical machinery, abrasive tools, bearings and other product parts.NM450 Cchemical composition: C≤0.35; Si≤0.70; Mn≤1.70; P≤0.025; S≤0.010; Cr≤1.10; Ni≤0.80; Ti≤0.050; Mo≤0.55; B: 0.0005-0.006; Al≥0.010. Mechanical properties: Tensile strength Rm / MPa ≧ 25; -20 ℃ impact energy absorption (longitudinal) KV2 / J ≧ 24Surface Brinell hardness HBW: 420-480
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