The cold rolling precision bright pipe system produced by our factory has smooth appearance, uniform wall thickness, no oxide layer and high precision. The inner hole of RE 40 marine grade ship steel plate steel pipe can be divided into round, spline and plum blossom, which is widely used in automobile, motorcycle, electric power, petrochemical, ship, aerospace, bearing, pneumatic components, oil cylinder, boiler equipment, medical equipment, fitness equipment and other industries. Materials can be divided into: 10#, 20#, 35#, 45#, 40Cr, 16Mn, etc. According to the needs of users, we can make all kinds of national standard non-standard precision pipes. Special RE 40 marine grade ship steel plate materials and specifications can be ordered in advance.
SA36 carbon structural steel is a material belonging to the ASME boiler and pressure vessels. The products are produced in steel plates, steel sheets, steel bars, and section steels. The tensile strength is 400-550MPa; the yield point is greater than or equal to 250MPa. SA-36 steel production process: the steel is killed steel. Detailed specifications: RE 40 marine grade ship steel plate thickness: 8-100mm, width: 1600-4020mm, length: 6000-17500mm. It is commonly used in the construction of bridges and buildings.
40Cr steel belongs to alloy structural steel. RE 40 marine grade ship steel plate, 40Cr steel has good comprehensive properties, low temperature impact toughness and low notch sensitivity after quenching and tempering on the basis of high-quality carbon structural steel No. 40. 40Cr steel mechanical properties: tensile strength: ≥ 980mpa, yield strength: ≥ 785MPa, elongation after fracture: ≥ 9%, elongation after fracture: ≥ 45%, impact absorption energy: ≥ 47J. 40Cr steel chemical composition: C: 0.37-0.44, Si: 0.17-0.37, Mn: 0.50-0.80, Cr: 0.80-1.10.
Quenching is a heat treatment process in which steel parts are heated to above the critical temperature, and after proper heat preservation, the parts are quickly cooled to room temperature in water or oil, so that martensite transformation occurs. The hardness of the quenched RE 40 marine grade ship steel plate increases sharply. Quenching is to prepare the organization for adjusting and improving the performance of RE 40 marine grade ship steel plate during tempering, while tempering determines the performance and life of the workpiece.
As to the Chemical composition, the different content is a main on carbon content, while the carbon content of RE 40 marine grade ship steel plate, A283Gr. D is no more than 0.27% and it is higher than Grade C (≤0.24%) ; as to the mechanical property, the differences are tensile strength and yield strength, while the tensile strength of ASTM A283 Gr.D is 415-550MPa (60-80 ksi) and yield strength of ASTM A283 Grade D is 230MPa (33 ksi).
From the order to the delivery, there are three quality inspections to ensure that the qualified rate of finished products is more than 100%. We promise that every order will be tracked in a timely manner to ensure that customers can receive goods safely and constantly listen to their opinions and suggestions, reflect on our own problems, and let customers feel at ease. We have a large warehouse in Shanghai and Tianjin, which can provide customers with sufficient sources of supply.
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