What is hardness of nm450 sheet HS code

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Alloy structural steel specification Steel: 15CrMo, hardness of NM450 sheetDigital Code: A30152Steel Group Series: CrMoImplementation of the standards: GB / T3077-201515CrMo steel chemical composition Carbon C: 0.12 ~ 0.18Si Si: 0.17 ~ 0.37Chromium Cr: 0.80 ~ 1.10Ni Ni: ≤0.030Copper Cu: ≤0.030Mo Mo: 0.40 ~ 0.55Manganese Mn: 0.40 ~ 0.70Sulfur S: ≤0.035Phosphorus P: ≤0.035

The carbon content of hardness of NM450 sheet, medium carbon steel plate is 0.25% - 0.60%. In addition to carbon, it can also contain a small amount of manganese (0.70% - 1.20%). The medium carbon steel plate after quenching and tempering has good comprehensive mechanical properties. The highest hardness is about HRC55 (hb538) and σ B is 600-1100mpa.

Pressure vessel plates hardness of NM450 sheet are used to manufacture pressure vessel equipment in petrochemical, gas separation and gas storage and transportation equipment. It is required to have sufficient strength and toughness, good welding performance and hot and cold processing performance. The general heat treatment of Q345R plate is hot rolling, controlled rolling, normalizing. The impact temperature is normal temperature, 0 ° C, -20.

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SG255 gas cylinder hardness of NM450 sheet steel is widely used in petroleum, chemical industry, power station, boiler, etc, used to make the reactor, heat exchanger, separator. The company is a professional gas cylinder steel exporter and a steel stockist in china. We keep more than 1000 tons SG255 gas cylinder steel coils in hardness of NM450 sheet stock every month. If you want to get the steel price, please do not hesitate to contact us. Any need in SG255 Chemical Composition and Mechanical Properties, please feel free to contact us by email or calling to us.