Company News

• 27SiMn Seamless steel pipe: Material characteristics and application overview

  2024 / 04 / 24

  27SiMn Seamless steel pipe: Material characteristics and application overview 27SiMn seamless steel pipe chemical composition: C: 0.24 ~ 0.32, Si: 1.10 ~ 1.40, Mn: 1.10 ~ 1.40, P: ≤0.035, S: ≤0.035, Cu: ≤0.30, Cr: ≤0.30, Ni: ≤0.30, Mo: ≤0.15 Mechanical properties of 27SiMn seamless steel pipe: tensile strength (σb/MPa) : ≧980, yield point (σs/MPa) : ≧835, elongation after breaking (δ5/%) : ≧12, section shrinkage (ψ/%) : ≧40, impact absorption work (Aku2/J) : ≧39, Brinell hardness (HBS100/3000) (annealing or high temperature tempering state) : ≦217 Product specifications: 10mm~762mm, wall thickness 2mm~160mm. Production method: hot rolling, heat treatment. .Material characteristics The main components of 27SiMn seamless steel pipe are carbon (C), silicon (Si) and manganese (Mn), which give the steel pipe excellent mechanical properties and processing properties. Specifically, silicon can improve the strength and hardness of steel, while enhancing the heat and corrosion resistance of steel; Manganese helps to refine the grain of steel and improve the strength and toughness of steel. In addition, 27SiMn seamless steel pipe also has good welding p

• Application analysis of seamless pipe performance of API5L X70 pipeline

  2024 / 04 / 22

  Application analysis of seamless pipe performance of API5L X70 pipeline API5LX70 seamless steel pipe is a kind of high strength, high toughness steel pipe, widely used in oil, natural gas and other industries in the transmission pipeline system. Its excellent mechanical properties and good corrosion resistance make API 5LX70 seamless steel pipe one of the preferred materials in the field of oil and gas transportation. 1. Product implementation: API 5L pipeline steel pipe specification. This standard is applicable to the transportation of gas, water and oil in the oil and natural gas industry; 2, the product should meet the requirements of TSG D7002 pressure pipeline element type test rules. 3, product specifications: outer diameter 21.3mm~1219mm, wall thickness 2mm~80mm. 4, production mode: hot rolling, cold rolling, cold drawing, hot expansion. Delivery condition: Hot rolling, heat treatment. 5, API5LX70 seamless steel pipe chemical composition: carbon: ≤0.26, manganese: ≤0.65, phosphorus: ≤0.030, sulfur: ≤0.030 Mechanical properties: minimum yield strength: 485mpa, minimum tensile strength: 570mpa. The mechanical properties of the API5LX70 seamless steel pipe are excellent, with a yield strength of up to 70,000 psi (po

• 12Cr1MoV alloy plate properties introduction

  2024 / 04 / 19

  12Cr1MoV alloy plate properties introduction 1, 12Cr1MoV alloy steel characteristics 12Cr1MoV alloy steel is a kind of low carbon steel, containing higher Cr, Mo and other alloying elements, with good high temperature strength and creep strength, can withstand high temperature and high pressure working environment. In addition, 12Cr1MoV alloy steel also has good corrosion resistance and oxidation resistance, and can work in acidic or alkaline environments for a long time. 2. Preparation process of 12Cr1MoV alloy steel The preparation process of 12Cr1MoV alloy steel mainly includes smelting, casting, rolling and heat treatment. First of all, the raw material is smelted, the impurity elements are removed, and the appropriate amount of alloying elements are added; Secondly, the molten steel after smelting is cast to form steel ingot; Thirdly, the ingot is rolled and processed into the desired shape and size; Finally, heat treatment is carried out to adjust the mechanical properties and corrosion resistance of the material. 3, 12Cr1MoV chemical composition Silicon Si: 0.17 ~ 0.37 Manganese Mn: 0.40 ~ 0.70