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Comparison of steel grades by chemistry [4] [5] [6] EN steel number (Europe) EN steel name (Europe) ASTM grade (USA) AISI/SAE grade (USA) UNS (USA) DIN (Germany) BS (UK) UNI (Italy) JIS (Japan) Carbon steels 1.1141 1.0401 1.0453: C15D C18D: 1010 1018: CK15 C15 C16.8: 040A15 080M15 080A15 EN3B: C15 C16 1C15: S12C S15 S15CK S15C 1.0503 1.1191 1. ...
The SAE steel grades system is a standard alloy numbering system (SAE J1086 – Numbering Metals and Alloys) for steel grades maintained by SAE International. In the 1930s and 1940s, the American Iron and Steel Institute (AISI) and SAE were both involved in efforts to standardize such a numbering system for steels. These efforts were similar ...
For ordinary exams, universities in Italy use a 30-point scale that can be divided into failing (0 to 17) and passing (18 to 30 cum laude) grades. For final assessment of the entire degree, a 110-point scale is used, which is divided into two as well, with 66 being the minimum for a degree to be awarded. The 110-point scale incorporates scores ...
The grades A to E are passing grades, while F denotes failure. Grades A, C and E all have different requirements and the requirements for A are, naturally, the hardest to reach. The grades B and D are given when a student has met all the requirements for the grade below (E or C) and a majority of the requirements for the grade above (C or A). [53]
Structural steel. Structural steel is a category of steel used for making construction materials in a variety of shapes. Many structural steel shapes take the form of an elongated beam having a profile of a specific cross section. Structural steel shapes, sizes, chemical composition, mechanical properties such as strengths, storage practices ...
Abrasion resistant steel is typically used in applications requiring high wear resistance, including backhoe buckets and teeth, bulldozer blades, dump truck beds, ore and coal chutes, augers and aggregate conveyors. [6] Additional uses include shooting targets and armor, AR500 steel is commonly used for these applications as higher BHN steels ...
Duplex stainless steel. Duplex stainless steels[1][2][3][4][5] are a family of stainless steels. These are called duplex (or austenitic-ferritic) grades because their metallurgical structure consists of two phases, austenite (face-centered cubic lattice) and ferrite (body centered cubic lattice) in roughly equal proportions.
The beginnings of the steel industry in Italy were strongly influenced by the modest presence of underground iron ore and coal in particular, that occurred in 1880, an increasing import of pig iron from abroad. With the widespread application of iron in the railways and in the mechanical industry in general witnessed the slow renewal of the old ...