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.
CategoryCorrosion-Resisting and Heat-Resisting Steels
ScopeThis 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.
Learn more about chemical composition.
Now it's the mechanical properties turn:
Grade 2H Hex150 000 psi min
Learn more about what is tensile strength.
Grade 2H248 to 327 HB or 24 to 35 HRC
Learn more about what is hardness.
Density7800 - 8000 kg/m3 (around 7.9 g/cm3 or 0.285 lb/in3).
Learn more about density.
Elastic Modulus190 GPa (27557 ksi) - 210GPa (30458 ksi).
Learn more about the Elastic Modulus.
Poisson's Ratio0.27 – 0.30.
Learn more about the poisson ratio.
Allowable StressDepends on the project (And its factor of safety).
Learn more about the what is allowable stress.
My Material's RankWhile 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.
ASTM ClassroomAre you having trouble understanding the basics of ASTM?
What is the difference between Code, Standard & Specification?
This video will walk you through:
CitationWhen 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 ReferencesA153/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
B766 Specification for Electrodeposited Coatings of Cadmium