ASTM A194 Properties (Chem., Mech. & Rankings) 2022

In this post I'll talk about and give details about ASTM A194. First let's describe it and then have a look at its material's properties.

What is ASTM A194?

ASTM A194 is a Specification for Carbon and Alloy Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both.

Category

Corrosion-Resisting and Heat-Resisting Steels

Scope

This specification covers a variety of carbon, alloy, and martensitic stainless steel nuts in the size range 1⁄4 through 4 in. and metric M6 through M100 nominal.

Ok let's start with ASTM A194 chemical composition.

Chemical Composition

Grade 2H

C min.

0.40

Mn max.

1.00

P max.

0.040

S max.

0.050

Si max

0.40

Learn more about chemical composition.

Now it's the mechanical properties turn:

Tensile Strength

Grade 2H Hex

150 000 psi min

Learn more about what is tensile strength.

Hardness Requirements

Grade 2H

248 to 327 HB or 24 to 35 HRC

Learn more about what is hardness.

Density

7800 - 8000 kg/m3 (around 7.9 g/cm3 or 0.285 lb/in3).

Learn more about density.

Elastic Modulus

190 GPa (27557 ksi) - 210GPa (30458 ksi).

Learn more about the Elastic Modulus.

Poisson's Ratio

0.27 – 0.30.

Learn more about the poisson ratio.

Allowable Stress

Depends on the project (And its factor of safety).

Learn more about the what is allowable stress.

My Material's Rank

While engineers will often look for the cheapest material they can use, I took a different approach to material's selection to help newbie students.

I ranked materials according to their yield strengths and ASTM A194 currently ranks 140 in my yield strength index. This means there are other 139 materials that are more resistant.

Note: I've analysed 134 materials in order to create an yield strength index. Check my astm material's comparison post for more details.

Details and PDF

Instructions:

  1. Go to this page.
  2. Type the name of the standard you are looking for in the search box. Tip: Don't forget to include "ASTM" as a keyword.
  3. Read the details about the standard or download the PDF.

ASTM Classroom

Are you having trouble understanding the basics of ASTM?

What is the difference between Code, Standard & Specification?

This video will walk you through:

References

Citation

When you need to include a fact or piece of information in an assignment or essay you should also include where and how you found that piece of information.

That gives credibility to your paper and it is sometimes required in higher education.

To make your life (and citation) easier just copy & paste the information below into your assignment or essay:

Luz, Gelson. ASTM A194 Properties (Chem., Mech. & Rankings). Materials Blog. Gelsonluz.com. dd mmmm. yyyy. <URL>

Now replace dd, mmmm and yyyy with the day, month, and year you browsed this page. Also replace URL for the actual url of this page (The < and > stay, ok?). This citation format is based on MLA.

Other References

A153/A153M Specification for Zinc Coating (Hot-Dip) on⁣
Iron and Steel Hardware⁣
A276 Specification for Stainless Steel Bars and Shapes⁣
A320/A320M Specification for Alloy-Steel and Stainless⁣
Steel Bolting for Low-Temperature Service⁣
A370 Test Methods and Definitions for Mechanical Testing⁣
of Steel Products⁣
A962/A962M Specification for Common Requirements for⁣
Bolting Intended for Use at Any Temperature from Cryogenic⁣
to the Creep Range⁣
B633 Specification for Electrodeposited Coatings of Zinc on⁣
Iron and Steel⁣
B695 Specification for Coatings of Zinc Mechanically Deposited⁣
on Iron and Steel⁣
B696 Specification for Coatings of Cadmium Mechanically⁣
Deposited⁣
B766 Specification for Electrodeposited Coatings of Cadmium⁣

COMMENTS

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10XX,52,11XX,17,12XX,7,13XX,4,15XX,16,3XXX,2,40XX,10,41XX,12,43XX,5,44XX,4,46XX,5,47XX,3,48XX,3,5XXX,23,6XXX,3,71XX,1,8XXX,22,92XX,5,93XX,1,94XX,4,98XX,2,AISI,66,ASTM,172,Atomic-Mass,327,Atomic-Number,436,Atomic-Radius,86,Atomic-Symbol,329,Atomic-Volume,94,Austenitic,56,Boiling-Point,94,bp1,97,CBS,6,Chemical-Elements,100,Chemical-Symbol,217,CMDS,13,Coefficient-of-Thermal-Expansion,85,Covalent-Radius,87,Crystal-Structure,109,CS,17,CVS,3,Density,297,Duplex,6,el1,100,Elastic-Modulus,30,Electrical-Conductivity,79,Electro-Affinity,87,Electron-Configuration,109,Electronegativity,102,Electrons-per-Shell,111,Enthalpy-of-Fusion,93,Enthalpy-of-Vaporization,95,Ferritic,12,fp1,38,fs1,45,Group-Number,218,HCS,14,Heat-of-Fusion,87,Heat-of-Vaporization,85,HMCS,16,Ionic-Radius,78,Ionization-Energy,102,Ionization-Potential,101,l1,438,LCS,21,List,281,lp1,69,Martensitic,6,MCS,17,MDS,14,Melting-Point,96,mm1,2,mp1,99,MS,4,NCMDBS,6,NCMDS,31,NCS,2,NMDS,8,Oxidation-States,104,p1,44,Period-Number,107,pr1,53,Properties,40,RCLS,1,RCS,16,ref1,5,RRCLS,3,RRCS,4,SAE,201,Site,2,SMS,5,Specific-Gravity,83,Specific-Heat,92,Specific-Weight,1,SS,80,Tests,2,Thermal-Conductivity,105,tm1,274,Valence-Electrons,98,wt1,26,
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ASTM A194 Properties (Chem., Mech. & Rankings) 2022
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