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www.interlloy.com.au/our-products/high-tensile-steels/4140-high-tensile-steel

4140 hardened and tempered bar can also be successfully nitrided, giving a surface hardness of up to Rc 60. Nitriding is carried out at 490 oC - 530 oC, ...

www.interlloy.com.au/data_sheets/hollow_bar/hollow_pdf/Interlloy_4140_High_Tensile_Steel.pdf

Hardness. Rc. Min. Max. 862. 758. 14. 28. 36. Typical Mechanical Properties for 4140 Hollow Bar As Supplied,. Black Hot Rolled Finish - Hardened and ...

wingatealloys.com/products/alloy-steel/4140-ht-4140-prehard

4140 PREHARD is heat treated to a medium hardness (HRC 28/32) and is designated as 4140 HT. 4140 annealed is supplied in the soft condition and can be hardened ...

stainless.steelandtube.co.nz/wp-content/uploads/2014/06/HighTensileSteel4140.pdf

AISI 4140 Chrome - Moly High Tensile. Steel, generally supplied hardened and ... in the case with minimal effect on its hardness.

advantagetoolsteel.com/products/alloy-steel

Our Alloy Steels are available in 4140 Heat Treated (HT) and 4140 Annealed ... will have a hardness in the high teens/low twenties on the Rockwell C Scale.

tubingchina.com/4140-steel.htm

4140 is an alloy steel that is supplied in either the annealed or prehardened condition. The prehardened condition is heat treated to a medium hardness (HRC 28/ ...

icme.hpc.msstate.edu/mediawiki/index.php/Mechanical_properties_of_4140_steel.html

Mar 14, 2016 ... 4140 steel is a low alloy steel commonly used in structural members and mechanical ... Rockwell Scale C Hardness: 20, 28, 37, 44, and 52.

web.mit.edu/petron/Public/2.002_labs/Lab5/lab5_background_s07_4140.pdf

Figure 3: Annealed microstructure of 4140 low alloy steel. ... material being measured, the appropriate Rockwell Hardness scale is selected. Here the.

www.youtube.com/watch?v=YU8IuHf5NV8

In this video we give some basis on how to get some 4140 alloy steel hardened and then temper to different hardness, we will perform our ...

www.alro.com/Resources/WebResources/AlroCom/MetalsGuideCatalog/PDFs/008-Alloy-Tool-Steel.pdf

In conditions where localized hardness may be required, this steel is readily flame or induction hardened. *Applies only to 4140 leaded alloy steel bars.

www.azom.com/article.aspx?ArticleID=6769

Sep 13, 2012 ... Tempering. AISI 4140 alloy steel can be tempered at 205 to 649°C (400 to 1200°F) depending upon the desired hardness level. The ...