Exploring the Properties and Applications of F2780-09(2014) Steel Grade
F2780-09(2014) is a steel grade that is widely used in various industries due to its desirable properties and applications. In this article, we will explore the chemical composition, mechanical properties, standard number, and corresponding grades of F2780-09(2014) steel grade.
Chemical Composition:
The chemical composition of F2780-09(2014) steel grade is as follows:
– Carbon (C): 0.20% max
– Manganese (Mn): 0.90-1.30%
– Silicon (Si): 0.15-0.40%
– Phosphorous (P): 0.030% max
– Sulfur (S): 0.030% max
– Chromium (Cr): 0.50-0.85%
– Nickel (Ni): 0.40% max
– Molybdenum (Mo): 0.25-0.40%
– Vanadium (V): 0.03-0.10%
Mechanical Properties:
The mechanical properties of F2780-09(2014) steel grade are as follows:
– Tensile Strength: 580-690 MPa (MegaPascals)
– Yield Strength (0.2% Offset): 310-420 MPa
– Elongation: 18% min
– Reduction of Area: 40% min
– Charpy V-Notch Impact Strength: 27 J (at -20°C)
Standard Number:
F2780-09(2014) is a standard specification published by ASTM International. It provides guidelines for the chemical composition and mechanical properties of steel for the manufacture of high-strength bolts, studs, and other externally threaded fasteners.
Corresponding Grades:
F2780-09(2014) steel grade is equivalent to several international grades, including:
– European Norm (EN) 10269: 34CrNiMo6
– British Standard (BS) 970 Part 1: 1983: 708A37
– German Standard (DIN) 17200: 34CrNiMo6
– Japanese Industrial Standard (JIS) G 4103: SNCM439
Applications:
Due to its high strength, good toughness, and excellent wear resistance, F2780-09(2014) steel grade finds application in various industries, including automotive, aerospace, construction, and machinery manufacturing. It is commonly used for manufacturing structural components, gears, shafts, high-strength bolts, and other mechanical parts that require high tensile strength and good fatigue resistance.
In conclusion, F2780-09(2014) steel grade is a versatile and widely used grade due to its desirable properties such as high strength, good toughness, and wear resistance. Understanding its chemical composition, mechanical properties, standard number, and corresponding grades helps in selecting the appropriate grade for specific applications.