What Standards Cover Material Groups 1018/1020 and 4130/4140 2

[DFielder]

Good Day Everyone,

If this question has already been answered then please direct me to the appropriate thread.

I have recently been tasked with reviewing the material grades currently used for our product designs to make sure they have the needed mechanical properties. To accomplish this I have been cross referencing the mechanical properties in the appropriate ASTM Standards to our design calculations.

I am down to my last two groups of materials and I am having trouble locating what ASTM standards cover the mechanical properties of:

1) 1018 / 1020

2) 4130 / 4140

in both flat and round bars.

If ASTM standards do not clearly cover these materials what SAE standards do.

Thank you in advance for all your help.

 

[weldstan]

They are SAE/AISI standard material grades. 4130/4140 are heat treatable grades that can meet a multitude of strength requirements.
Strength of 1018/1020 varies with hot rolled, cold finished or cold drawn/rolled condition.

 

[CoryPad]

SAE J403 covers chemical composition for 1018/1020. SAE J404 covers chemical composition for 4130/4140. ASTM A29 covers the chemical composition for both. If you want mechanical properties, try one of these:

Hot-Rolled Carbon Steel Bars:
Steel Bars, Carbon, Quenched and Tempered A321
Steel Bars and Shapes, Carbon Rolled from “T’’ Rails A499
Steel Bars, Carbon, Merchant Quality, M-Grades A575
Steel Bars, Carbon, Hot-Wrought, Special Quality A576
Steel Bars, Carbon, Merchant Quality, Mechanical Properties A663
Steel Bars, Carbon, Hot-Wrought, Special Quality, Mechanical Properties A675
Steel Bars for Springs, Carbon and Alloy A689
Steel Bars, Carbon, Hot-Wrought, Special Quality, for Fluid Power Applications A695

Cold-Finished Carbon Steel Bars:
Steel Bars, Carbon, Cold-Finished, Standard Quality A108
Stress-Relieved Steel Bars Subject to Mechanical Property Requirements, Cold-Drawn Carbon A311/A311M

Hot-Rolled Alloy Steel Bars:
Steel Bars, Alloy, Standard Grades A322
Steel Bars, Alloy, Subject to End-Quench Hardenability Requirements A304
Steel Bars, Alloy, Hot-Wrought or Cold-Finished, Quenched and Tempered A434
Steel Bars, Alloy, Hot-Wrought, for Elevated Temperature or Pressure-Containing Parts, or Both A739

Cold-Finished Alloy Steel Bars:
Steel Bars, Alloy, Cold-Finished A331
Steel Bars, Alloy, Hot-Rolled or Cold-Finished, Quenched and Tempered A434
Steel Bars, Carbon, Hot-Wrought or Cold-Finished, Special Quality, for Pressure Piping Components A696

 

[metman]

A purple for you CoreyPad. Hopefully this was a copy and paste operation for that much data.

Design for RELIABILITY, manufacturability, and maintainability

 

[mrfailure]

You really want to get to the product you are trying to analyze. I would look in the Worldwide Guide to Equivalent Irons and Steels by ASM first - it will list both product forms and equivalent alloys. Another good source is the listing of UNS alloys from ASTM/SAE - your alloys are UNS G10180 (1018), G10200 (1020), G41300 (4130), and G41400 (4140). This is usually a subset of what you will find in the Worldwide Guide, but it is useful especially if you do not have the first reference.