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

4140 Chromium-Molybdenum Steel. Supplied in the annealed or prehardened condition. 4140 PREHARD is heat treated to a medium hardness (HRC 28/32) ...

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, followed ...

pgisteel.com/4140-steel-plate

Oct 30, 2020 ... 4140 PH has the same industry standard chemistry as 4140 HR plate but with an industry standard Rockwell C Hardness rating of 28 – 32.

www.anvilfire.com/FAQs/heat-treating-4140.php

Hardening and tempering SAE 4140 steel application to power hammer dies and DIY ... with nearest points taken from a conversion table for Rockwell hardness.

www.simplytoolsteel.com/4140-alloy-steel-data-sheet.html

The prehardened condition 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 ...

www.metalsupermarkets.com/grade-guide-4140-steel

Jun 19, 2018 ... When it comes to an excellent combination of mechanical properties such as tensile strength, shear strength, toughness, hardness, and ductility, it ...

www.associatedsteel.com/4140-annealed-steel

Kromite CD is a modified 4140 alloy. It is offered in the cold finished annealed condition. Typical hardness is Rockwell “C” 19/24. Typical tensile strength ...

www.associatedsteel.com/high-strength-steels

Hardness range from Rockwell “C” 38/42 to 55/62 depending upon application. This customer-manufactured component is suited to handle many applications that ...

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

Mar 14, 2016 ... Figure 13: Effect of moisture in air and of dissolved oxygen in 3 % NaCl on fatigue life of 4140 steel having a Rockwell hardness (Rc) of 20 at ...

theenzone.com/_rc/_valves/AISI-4140-Alloy-Steel-(UNS-G41400).pdf

Sep 7, 2012 ... The following datasheet gives an overview of AISI 4140 alloy steel. Chemical ... Hardness, Rockwell B (converted from Brinell hardness). 92. 92.

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

Sep 13, 2012 ... The physical properties of AISI 4140 alloy steel are highlighted in the following table ... Hardness, Rockwell C (converted from Brinell hardness.