other materials. Conventional low- to high-strength steels include IF (interstitial free), BH (bake hardened), and HSLA (high-strength low-alloy). These steels generally have yield strength of less than 550 MPa and ductility that decreases with increased strength. (More information about these steel types in Section 8.2.1.) Advanced High-Strength Steel (AHSS) Definitions As an example, DP 500/800 means dual-phase steel with 500 MPa minimum yield strength and 800 MPa minimum ultimate tensile strength. The ULSAB-AVC program first used this classification system. Metallurgy of AHSS. Manufacturers and users of steel products generally understand the fundamental metallurgy of conventional low- and high-strength steels.
A recent report by Markets and Markets says that the high-strength steel market is to grow by about 8% per year through 2021. By then, the market should be about 21 billion U.S. dollars globally. The report says that the automotive market is the number one user of high-strength steels and that Asia Pacific is the largest user by region. CN102134686A - Low-alloy wheel steel for railway wagons The invention discloses low-alloy wheel steel for railway wagons, which is characterized by comprising the following chemical components in percentage by weight:0.70-0.75% of C, 0.75-0.95% of Si, 0.75-0.90% of Mn, 0.15-0.25% of Ni, 0.25-0.35% of Cr, 0.015-0.030% of Als, P less than or equal to 0.010%, S less than or equal to 0.010% and the balance of Fe and unavoidable impurity elements. Carbon & High Strength Low Alloy (HSLA) Structural Steel Leeco ® Steel carries a deep inventory of carbon - or mild - steel plate as well as High Strength Low Alloy - or HSLA - steel plate. HSLA boasts a higher strength, lower weight and good machinability and ductility compared to conventional mild carbon steel grades. HSLA structural steels are manufactured to meet specific mechanical properties, such as hardness, strength, corrosion resistance
Low weight pays off in reduced fuel consumption throughout the life span of the vehicle. And if something happens it is easier to repair a car made of high-strength steel. All workshops have experience of working with steel compared to cars made of new materials. Rails and Rail Steel IspatGuruMay 05, 2013 · So, the requirements from rail steel are to make the rails stronger and more wear and defect resistant, in order to minimize rail maintenance costs and maximize asset life. The increase in strength of the rail steel needed mainly to cater for the heavy axle loads. Rail steel of around 1,300 MPa to 1,400 MPa is now being used in large quantities. Special Issue "Mechanical Behavior of High-Strength Low For both steels, the yield strength (YS) monotonically increased with strain rates, whereas the values of ultimate tensile strength (UTS), uniform elongation (UE) and post-uniform elongation (PUE) were maintained stable at the low strain rate range (0.0010.1 s 1), followed by a significant increase with strain rate at high strain rate
High-strength steel has a yield strength in excess of 35,000 psi but lower than 70,000 psi; high-strength low-alloy steel has a yield strength in high-strength steels upper range. Study on High Strength Low Alloy Bainitic Steel RailsStudy on High Strength Low Alloy Bainitic Steel Rails Zhaoyang CHEN!, Qingyue ZHOU!, Yinhua ZHANG! , Fengshou LID! , Xin CHEN2 Metal and Chemistry Research Institute, China Academy of Railway Science, Beijing 100081, China. E-mail:[email protected] 2 Technology Center of Angang Steel Co Ltd. , Anshan, 114009, China Study on High Strength Low Alloy Bainitic Steel RailsStudy on High Strength Low Alloy Bainitic Steel Rails Zhaoyang CHEN!, Qingyue ZHOU!, Yinhua ZHANG! , Fengshou LID! , Xin CHEN2 Metal and Chemistry Research Institute, China Academy of Railway Science, Beijing 100081, China. E-mail:[email protected] 2 Technology Center of Angang Steel Co Ltd. , Anshan, 114009, China
Material Properties The following material properties are AAR specifications and will be confirmed on the Mill Test Report. Yield Point (MPa) Tensile Strength (MPa) Min. 8" Elongation % Grade B 50,000 81,000-101,000 16 Chemical Composition The following composition properties are AAR specifications for the TC128 grade B steel. Grade B Carbon max 0.24% Manganese max 1.00-1.65% Phosphorus max 0 CN102134686A - Low-alloy wheel steel for railway wagons The invention discloses low-alloy wheel steel for railway wagons, which is characterized by comprising the following chemical components in percentage by weight:0.70-0.75% of C, 0.75-0.95% of Si, 0.75-0.90% of Mn, 0.15-0.25% of Ni, 0.25-0.35% of Cr, 0.015-0.030% of Als, P less than or equal to 0.010%, S less than or equal to 0.010% and the balance of Fe and unavoidable impurity elements.