ASTM A283 carbon steel material with 15 thickness range

On March 19, 2020 the us international trade commission (ITC) vote on imports from China and India's carbon alloy ASTM A283 carbon steel material 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 ASTM A283 carbon steel material carbon alloy steel screws from China and India, according to the itc's affirmative ruling.

The melting points of vanadium and chromium are relatively high, and the ability to interact with oxygen is also relatively large, so the metal melt should be deoxidized well, and the temperature of the wear plate melt should not be too low, exceeding 1550℃. Boron is an element that is relatively easy to be oxidized and nitridated, so the steel melt must be fully deoxidized and nitrogen fixed before adding. In general wear-resistant plates, ASTM A283 carbon steel material, boron is added as a trace element, and the amount used is not very large.

Heat treatment specification and microstructure of ASTM A283 carbon steel material, 12Cr1MoV alloy plate:Heat treatment specification: quenching 970 ℃, air cooling; tempering 750 ℃, air cooling. Microstructure: bainite + ferrite.Mechanical properties of 12Cr1MoV alloy plate:Tensile strength σb (MPa)：≥490(50); Yield strength σs (MPa)：≥245(25); Elongation δ5 (％)：≥22; area shrinkage ψ (%): ≥ 50; Impact energy Akv (J): ≥ 71; Impact toughness value αkv (J/cm2)：≥88(9).

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