Astm A322 Grade 4140 Pdf [Extra Quality] Download
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Astm A322 Grade 4140 Pdf [Extra Quality] Download
How to Download ASTM A322 Grade 4140 PDF for Free
If you are looking for a reliable source of information on alloy steel bars, you may be interested in downloading the ASTM A322 Grade 4140 PDF. This document is a standard specification for steel bars, alloy, standard grades, issued by the American Society for Testing and Materials (ASTM).
ASTM A322 Grade 4140 is one of the grades covered by this specification. It is a medium-carbon, chromium-molybdenum alloy steel that has high hardenability, good strength, and wear resistance. It is suitable for applications such as forging, heat treating, cold drawing, machining, and structural components.
To download the ASTM A322 Grade 4140 PDF for free, you can follow these steps:
Go to the official website of ASTM International at https://www.astm.org/.
On the top menu bar, click on "Standards & Publications".
On the left sidebar, click on "Standards Products".
On the search box, type "A322" and click on "Search".
On the results page, find the entry for "A322-13(2018) Standard Specification for Steel Bars, Alloy, Standard Grades" and click on it.
On the product page, click on "Read Online" to access the full text of the specification.
To download the PDF file, you will need to create a free account or log in with your existing account.
Once you are logged in, click on "Download PDF" and save the file to your device.
You can also find other sources of ASTM A322 Grade 4140 PDF online, such as:
https://www.fushunspecialsteel.com/wp-content/uploads/2015/09/ASTM-A322-1991-Standard-Specification-for-Steel-Bars-Alloy-Standard-Grades.pdf [^1^]
https://aerovacalloyforge.com/alloys/specs/astm/astm-a322-4140/ [^2^]
https://www.scribd.com/document/381351919/A322 [^3^]
However, please note that these sources may not be updated or authorized by ASTM International. Therefore, it is recommended to use the official website for the most accurate and current information.
We hope this article has helped you to download the ASTM A322 Grade 4140 PDF for free. If you have any questions or feedback, please feel free to contact us.
ASTM A322 Grade 4140 Properties and Applications
ASTM A322 Grade 4140 is a medium-carbon, chromium-molybdenum alloy steel that has high hardenability, good strength, and wear resistance. It is suitable for applications such as forging, heat treating, cold drawing, machining, and structural components.
The following table shows the chemical composition of ASTM A322 Grade 4140 according to ASTM International:
ElementContent (%)
Carbon, C0.38-0.43
Silicon, Si0.15-0.35
Manganese, Mn0.75-1.00
Phosphorus, Pâ 0.035
Sulfur, Sâ 0.040
Chromium, Cr0.80-1.10
Molybdenum, Mo0.15-0.25
Nickel, Ni-
The following table shows the mechanical properties of ASTM A322 Grade 4140 as a function of heat treatment and sample size:
Treatment or conditionSample diameter (mm)Tensile strength (MPa)Yield strength (MPa)Elongation in 50 mm (%)Reduction in area (%)Hardness (HB)
Normalized at 870 ÂC (1600 ÂF)25.4700-850480 min.15.7 min.46.8 min.201-255
Annealed at 815 ÂC (1500 ÂF)25.4655-930414 min.25.7 min.56.9 min.197-277
Water quenched from 845 ÂC (1550 ÂF) and tempered at 540 ÂC (1000 ÂF)-1075 max.986 max.15.5 min.56.9 min.311 max.
The physical properties of ASTM A322 Grade 4140 are listed below:
Density (kg/m3)Coefficient of thermal expansion (10-6/K)Thermal conductivity (W/mÂK) 248dff8e21