What is ASTM A307?ASTM A307 is a Specification for Carbon Steel Bolts and Studs, 60 000 PSI Tensile Strength.
CategorySteel Bolting Materials
ScopeThis specification covers the chemical and mechanical requirements of three grades of carbon steel bolts and studs in sizes 1⁄4 in. through 4 in.
Ok let's start with ASTM A307 chemical composition.
Learn more about chemical composition.
Now it's the mechanical properties turn:
Grade B60 - 100 ksi min
Learn more about what is tensile strength.
Elongation (min.) 50 mm0.18.
Learn more about what is elongation.
Reduction of Area (min. %)Not Required.
Learn more about reduction of area.
Grade B121 to 212 HB or 69 to 95 HRB
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 A307 currently ranks 147 in my yield strength index. This means there are other 146 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 A307 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 ReferencesA563 Specification for Carbon and Alloy Steel Nuts
A706/A706M Specification for Low-Alloy Steel Deformed
and Plain Bars for Concrete Reinforcement
A751 Test Methods, Practices, and Terminology for Chemical
Analysis of Steel Products
B695 Specification for Coatings of Zinc Mechanically Deposited
on Iron and Steel
D3951 Practice for Commercial Packaging
F606 Test Methods for Determining the Mechanical Properties
of Externally and Internally Threaded Fasteners,
Washers, Direct Tension Indicators, and Rivets
F1470 Practice for Fastener Sampling for Specified Mechanical
Properties and Performance Inspection
F1554 Specification for Anchor Bolts, Steel, 36, 55, and
105-ksi Yield Strength
F1789 Terminology for F16 Mechanical Fasteners
F2329 Specification for Zinc Coating, Hot-Dip, Requirements
for Application to Carbon and Alloy Steel Bolts,
Screws, Washers, Nuts, and Special Threaded Fasteners