Apr 28, 2006 · A307- Grade A has minimum tensile strength of 60KSI. A307- Grade B has tensile strength of 60KSI-100KSI. A307-Grade C has "properties conforming to" ASTM A36- tensile strength of 58-80 KSI. Yield is not listed for Grades A and B. There are hardness requirements for Grades A and B, as well as specified tensile requirements for each bolt size.I thought A307 is the bolt designation for A36 steel. A36 is for structural shapes.Check PP 4-4, Table 1-C - it lists A36 for threaded round stock. I believe A307 is for bolts and studs only, not all thread.I agree with cvg A36 is all thread and a 307 is headed (bolt). I had a steel fabricator rub my nose in this distinction a few years ago and will not forget which is which. The ASTM callouts for all thread anchor bolt type stock should be F1554, Gr. 36 or A36.A307 has no specified yield strength, only tensile strength. The tensile strength for A307 is slightly higher than that for A36. You may find these strengths in the connections chapter of the AISC 9th.I was thinking that one of the grades of A307 (grade C, if I remember right) actually WAS A36- I'll try to check when I get back in the office.1I recommend you look into ASTM F1554 Anchor Rods. This is the most up to date spec on anchor rods of which I am aware. These come in three strengths 36ksi, 55ksi and 105ksi. Good Luck.A307- Grade A has minimum tensile strength of 60KSI. A307- Grade B has tensile strength of 60KSI-100KSI. A307-Grade C has "properties conforming to" ASTM A36- tensile strength of 58-80 KSI. Yield is not listed for Grades A and B. There are hardness requirements for Grades A and B, as well as specified tensile requirements for each bolt size.I just got off the phone with Birmingham Fastener, Inc. which is one of the major structural headed bolt and threaded rod manufacturers of only a few in the nation that most of the nations fabricators will puchase anchor bolts from. I know this because I used to be an estimator at a local steel fabricator that used to purchase anchors from Nashville Bolt which is no longer in businesss, and now this fabricator uses Birmingham. Apparently, as JStephen stated, MOST of the A307 bolts AND threaded rod is made from A36 steel. A307 Gr C, is a recommended specification that simply involves less certificationary paperwork that involves certain testing procedures which, unless required or specified by the engineer, can be avoided, thus costing less and producing virtually the same A307 material specification. Does anyone know anything more, either supporting, or contrary to this alleged claim by Birmingham Fastener? Apparently, A36 and A307 are available in either threaded rod or headed bolts. AISC is not always accurate or current considering the 9th Ed. is over 15 years old... We need to check with your local fabricator and national manufacturers to insure that our specifications and intentions compliment what is actually available and what the local fabricator is willing to work with, providing there is room for flexibility.JStephen, Where did you get your info from? I can't find it in AISC 9th Ed.ASTM's website, astm, has the info provided by JStephen above. Just do a search on A307. The spec is titled "Standard Specification for CS Bolts & Studs 60,000 psi tensile strength. In addition to what JStephen has listed, Grade A is for general applications, Grade B is for flanged joints in piping and Grade C is for non-headed anchorsA307 vs A325 boltOct 11, 2015ASTM A36 vs ASTM A529 Grade 50Jun 02, 2010See more results
Table abridged to show only those items relevant to Portland Bolt Commentary Regarding Appurtenant Materials This is not to say that the materials listed above conform to or can be made from A36 steel, simply that if the purchaser calls out a product per A36, but one that is not covered in the above scope (shapes, bars, plates), the ...Elongation, min % in 2” 20
Strength of Materials . ASTM A490 series bolts are equivalent to ASTM A325 bolts in application and geometry, but are made to a higher strength. The imperial grades are made to the same strength specifications as ASTM A354 grade BD. The metric grades are made to the same strength specifications as ASTM F568M property class 10.9.
A-2 Stainless. Tensile Strength The maximum load in tension (pulling apart) which a material can withstand before breaking or fracturing. Proof Load An axial tensile load which the product must withstand without evidence of any permanent set.
One thing to note is that with the implementation of ASTM F3125 Grade A325, the mechanical properties differ slightly as indicated below. The minimum strength requirement of a specified grade of bolt is given in pounds per square inch (psi) or thousands of pounds per square inch (ksi).
Bolts made from A-286 or Alloy 660 are known for their high strength, creep resistance and oxidation resistance at elevated temperatures. This iron-nickel-chromium alloy (once age-hardened) provides A-286 bolts with high levels of strength from room temperature up to about 1300°F (700°C). A-286 bolts are mildly corrosion resistant.
In most applications, if the bolt has been tightened past its yield strength, it is no longer reusable and will have to be thrown away if loosened. Proof load is the limit of the elastic range of the bolt. Designing for the use of bolts according to proof load can help prevent plastic deformation.
Proof load is defined as the maximum tensile force that can be applied to a bolt that will not result in plastic deformation. In other words, the material must remain in its elastic region when loaded up to its proof load. Proof load is typically between 85-95% of the yield strength.Author Connor O'sullivan
The tensile strength of austenitic stainless steel varies from 75,000 to 105,000 psi. 18-8 Stainless steel is a type of austenitic stainless steel that contains approximately 18% chromium and 8% nickel. Grades of stainless steel in the 18-8 series include, but not limited to; 302, 303, 304 and XM7.
Grade A490 bolts are available in diameters from 1/2 to 1-1/2 inch diameters with a minimum tensile strength of 150,000 PSI for all diameters, and are offered in two types. Type 1 is alloy steel, and Type 3 is weathering steel that offers atmospheric corrosion resistance similar to that of ASTM A242 or A588 steels.
Properties. A36 steel in plates, bars, and shapes with a thickness of less than 8 in (203 mm) has a minimum yield strength of 36,000 psi (250 MPa) and ultimate tensile strength of 58,000–80,000 psi (400–550 MPa). Plates thicker than 8 in have a 32,000 psi (220 MPa) yield strength and the same ultimate tensile strength of 58,000–80,000 psi...
Carbon steel fasteners is the most common type of steel used in fastener production. Grades 2, 5, and 8 are typically the standard for carbon steel screws and bolts, with alloyed carbon steel being a higher-end variation on these metals. Their mechanical strength ranges from approximately 50 ksi (kilo-pound per square inch) up to 300 ksi in a finished product.
The yield strength of a bolt can be defined as the tensile force that will produce a certain amount of permanent deformation within a specific fastener. In many (but not all) bolting situations, it’s important not to tension a bolt past its yield strength,...
For metric bolts strength is according ISO 898 Mechanical properties of fasteners made of carbon steel and alloy steel described by "property classes" with designations 4.6, 4.8, 5.8, 8.8, 9.8, 10.9 and 12.9. 1 Pa = 1 N/m2 = 1.4504x10-4 lb/in2 (psi)
Lubricated Bolts and Reduced Torque - Lubrication effect on bolt tension and torque; Metric Bolts - Head and Wrench Sizes - ANSI/SO, DIN and JIS bolts; Metric Steel Bolts - Grades and Property Classes - Metric steel bolts, screws and studs - proof and tensile strength; Steel Bolts - ASTM Grades - ASTM steel bolts - proof and tensile strength
ASTM A36. ASTM A36 covers the chemical and mechanical requirements for carbon steel shapes, plates, and bars of structural quality for use in riveted, bolted, or welded construction of bridges, buildings, and general structural purposes. Bolts manufactured from A36 steel include ASTM specifications A307 and F1554 Grade 36 as well as SAE J429 Grade 2.
Grade B7M. ASTM A193 Grade B7M bolts and studs are identical in chemistry to Grade B7 (quenched and tempered medium carbon alloy steel), but have lower strength requirements and require 100% hardness testing of all fasteners manufactured in the lot. Grade B7M bolts resist chloride, sulfide, and hydrogen stress corrosion cracking (SCC)...
For example, according to ASTM A354, in order for a ½-13 bolt to qualify as grade BD, it must have a minimum proof load of 17,050 pounds-force (lbf), a minimum yield strength of 18,500 lbf, and a minimum tensile strength of 21,300 lbf. Not all standards specify requirements for all three tests.
Shear strengths of bolts by diameter. This information is derived from data here. Bolt Safe Working Loads (lbs) Safe tensile load at 6,000 psi load; safe shear strength at 7500 psi load) Note These values seems awfully low to me. For example, I can't imagine a 1/4" bolt failing at these loads.
Materials - Structural Bolts in ASTM A325. ASTM A325 is the standard specification for heavy hex structural bolts in heat-treated steel with a minimum tensile strength of 120/105 ksi. A325 bolts from Glaser and Associates are available in two grades, type 1 and type 3, offering different mechanical and chemical properties for specific applications.
Note 6. Austenitic stainless steel, strain hardened bolts, screws, studs, and nuts shall have the following strength per properties.
Prior to its withdrawl in 2016, the ASTM A325 specification covered high strength heavy hex structural bolts from 1/2″ diameter through 1-1/2″ diameter. These bolts are intended for use in structural connections and therefore have shorter thread lengths than standard hex bolts.
Standard Speciﬁcation for Anchor Bolts, Steel, 36, 55, and 105-ksi Yield Strength1 This standard is issued under the ﬁxed designation F 1554; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last ...
Apr 24, 2017 · Multiply the product of the tensile strength and the cross-sectional area by 0.56, a coefficient which differentiates shear capacity from tensile capacity. In our example, multiplying 314.16 pounds by 0.56 gives 175.93 pounds. This number is the tensile capacity of the U-bolt.
stress, expressed as a percentage. Thus, for example, grade 4.6 bolt will have a minimum ultimate strength 40 kgf/mm 2 (392 Mpa) and minimum yield strength of 0.6 times 40, which is 24 kgf/mm 2 (235 Mpa) (Kumar). Black bolts are unfinished and are made of mild steel and are usually of Grade 4.6. Black bolts have adequate strength and ductility ...
yield strength of bolting materials spec. grade size (inches) minimum yield (in psi)spec. size minimum yield astm a193 b5 80,000 astm a490 1 1/2 - 1 130,000
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