A449 is an ASTM specification covering “Hex cap screws, bolts and studs, steel, heat treated, 120/105/90 ksi minimum tensile strength, general use”. From ASTM: “This specification covers quenched and tempered steel hex cap screws, bolts, and studs having a minimum tensile strength.
What is an A449 bolt?
ASTM A449 covers headed bolts, rods, and anchor bolts in diameters ranging from 1/4″ through 3″ inclusive. It is a medium strength bolt manufactured from a medium carbon or alloy steel that develops its mechanical values through a heat treating process. It is intended for general engineering applications.Apr 5, 2019
What is ASTM A193 Grade B7?
Grade B7 is a heat-treated chromium-molybdenum alloy steel with minimum tensile requirement of 100 ksi, yield of 75 ksi and maximum hardness of 35 HRC. ASTM A193 specification covers requirements for chemical composition, mechanical properties, hardness, heat-treatment, recommended nuts-washers for Grade B7 fasteners.
What is ASTM A307?
ASTM A307 Grade A is a standard material specification for medium strength carbon steel fasteners specially bolts, studs and threaded rods for general purpose applications. Grade A is a heat treated carbon steel bolting material with minimum tensile requirement of 60 ksi and hardness range from 121 to 241 BHN.
What is the highest strength threaded rod?
ASTM A193/B7 Due to its high tensile strength, B7 is one of the strongest materials in the industry. It is a grade of the spec A193 (Chromium Molybdenum). B7 achieves its strength through a heat-treating process where it is quenched and tempered at 1150 degrees F.
Is there a grade 5 threaded rod?
The stronger and more heat resistant Grade 5 threaded rod is made of medium carbon steel quenched and tempered. It is classified as ASTM A449.
Is there Grade 8 threaded rod?
Fully Threaded Rod, Steel, Grade 8, 5/16"-24, 3 ft Length.
What is the strongest grade of all thread?
Grade 105
What grade is standard threaded rod?
The most common steel threaded rod, classified as ASTM A307, is Grade 2 threaded rod made from low carbon steel. The stronger and more heat resistant Grade 5 threaded rod is made of medium carbon steel quenched and tempered. It is classified as ASTM A449.
How do I specify a threaded rod?
When specifying a threaded rod, the length comes after the class of fit. The two are commonly separated by an “x” (read as “by”). Length should be in units of inches for Inch-Standard fasteners and millimeters for Metric fasteners.
What grade steel is all thread?
At All America Threaded Products, we use the following materials for our threaded products: Low Carbon Steel. F1554 Grade 55 (S1 supplement) ASTM A193/B7.
What does ASTM A307 mean?
ASTM A307 Grade A Carbon Steel Bolting with minimum tensile of 60 ksi. ASTM A307 Grade A is grade specification in carbon steel bolting for use in general purpose application. This grade covers hex headed bolts, stud bolts, threaded rods or any other bolting having a minimum tensile strength of 60 ksi.
What is a A307 bolt used for?
A307 Grades Heavy hex bolts and studs intended for flanged joints in piping systems with cast iron flanges. Nonheaded anchor bolts, either bent or straight, intended for structural anchorage purposes.
Are A307 bolts high strength?
ASTM A307 bolts are not assigned to a group since they are not considered to be high strength bolts. The ultimate tensile strengths for A325A325ASTM A325 is an ASTM International standard for heavy hex structural bolts, titled Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength. It defines mechanical properties for bolts that range from 1⁄2 to 11⁄2 inches (13 to 38 mm) in diameter.https://en.wikipedia.org › wiki › ASTM_A325ASTM A325 - Wikipedia and A490 bolts are 120 ksi and 150 ksi respectively.