A detailed description of Wugang SA203 Pressure Vessel Plates, Alloy Steel

 Henan Steel Trade Co., Ltd. registered capital of 5 million yuan, is a set of steel sales, steel processing, futures trading, as one of the processing and trade of integrated enterprise high strength low alloy steel plate, boiler plate, pressure vessel plates, alloy steel plate , carbon structural steel, mold plates, high-rise building with a steel plate, bridge plate, oil and gas pipelines steel, corrosion-resistant steel, shipbuilding and offshore platform plate, stainless steel plate cutting other services provided. SA203 Pressure Vessel Plates, Alloy Steel SA203 is a low-nickel alloy, including A, B, D, E, F five grades. Wherein D, E, F nominal nickel content 3.5%, commonly known as 3.5Ni steel. SA203Gr.D, Gr.E, Gr.F environmental conditions at low temperature impact toughness and good mechanical properties, commonly used for low-temperature environment of -70 ~ -101 ℃ (quenched and tempered condition may be to -107 ℃). Widely used in cryogenic separation process, air separation, liquefied gas storage field equipment manufacturing in recent years, the domestic coal chemical project in the CO2 absorber, H2S absorber, H2S concentration column, methanol and other low-temperature equipment scrubbers extensive use of such materials manufacturing, currently used for the maximum thickness 110mm. Delivery status SA203 steel is generally normalized, normalized and tempered or quenched and tempered SA203Gr.D, E, F major chemical components grade steel state C Mn PS Si Ni 203GrD normalizing 0.17-0.2 0.7-0.8 ≤0.035 ≤ 0.035 0.13-0.45 3.18-3.82 203GrE normalizing 0.2-0.23 0.7-0.8 ≤0.035 ≤0.035 0.13-0.45 3.18-3.82 203GrF quenched 0.2-0.23 0.7-0.8 ≤0.035 ≤0.035 0.13-0.45 3.18-3.82 SA203Gr.D, E , F state mechanical properties yield strength steel grades σ0.2 (MPa) Tensile strength σb (MPa) Elongation δ4% 203GrD normalizing ≥255 450 ~ 585 ≥23 203GrE normalizing ≥275 485 ~ 620 ≥21 203GrF quenched ≥ 275 550 ~ 690 ≥21 SA203Gr.D, E, F steel impact performance status grade steel thickness (mm) minimum impact test temperature (℃) Akv (longitudinal) (J) D normalizing ≤50 -101 ≥18 50- 100 -87 E normalizing ≤50 -101 ≥20 50-100 -87 F quenched ≤50 -107 ≥27 50-100 -107 ≥20 Origin: Wugang Specifications: 8 ~ 110mm thickness superior products: SA203GrD, SA203GrE SA553 pressure vessel containing 8% and 9% Ni quenched and tempered steel with excellent low-temperature impact toughness and mechanical properties, typically used for low temperature environmental conditions of -100 ~ -196 ℃ (TypeⅡ to -170 ℃). 9% Ni steel (TypeⅠ) is widely used in cryogenic separation processing, liquefied gas storage areas, such as large-scale liquefied natural gas (LNG) vacuum low-temperature storage. Chemical composition C Si Mn PS Ni ≤0.13 0.15-0.40 ≤0.90 ≤0.035 ≤0.040 8.50 ~ 9.50 0.13 0.31-0.64 ≤0.025 ≤0.025 ≤0.040 7.50 ~ 8.50 Mechanical Properties Tensile strength category steel state σb (MPa) yield strength σ0. 2 (MPa) the amount of lateral expansion (horizontal) (mm) Ⅰ quenching 690 ~ 825 ≥585 -196 ℃, ≥0.38 Ⅱ quenching 6 Origin: Wugang rating: TypeⅠ, Ⅱ specifications: thickness 6 ~ 50mm 90 ~ 825 ≥585 -170 ℃, ≥0.38