What are A490 bolts used for?
ASTM A490 Bolts are intended for used in structural connections similar to ASTM A325/A325M but being produced from alloy steel instead of medium carbon steel, possed high tensile strength.
What is the minimum bolt pretension in Kips for a A490 bolt that is 1 diameter?
Table 7.1 Minimum Bolt Pretension for Pre-Installation Verification
| Bolt Diameter | A325/F1852 | A490/F2280 |
|---|---|---|
| 1 | 54,000 kips | 67,000 kips |
| 1-1/8 | 59,000 kips | 84,000 kips |
| 1-1/4 | 75,000 kips | 107,000 kips |
| 1-3/8 | 89,000 kips | 127,000 kips |
Are A325 bolts high strength?
A325 Structural Bolts ASTM A325 covers high strength structural bolts used in structural steel connections. A325s have a heavy hex head, a full body diameter, and are normally short in overall length since they are connecting steel to steel.
What is considered a high strength bolt?
High strength bolts are generally grade 8.8 and grade 10.9, most of which are grade 10.9. The screw hole of ordinary bolt is not necessarily larger than that of high-strength bolt.
What is shear strength of bolts?
Shear strength is defined as the maximum load that can be supported prior to fracture, when applied at a right angle to the fastener’s axis. Double shear is a load applied in two planes where the fastener could be cut into three pieces.
What grade of bolt is stronger?
Grade 9 structural bolts, also known as grade 9 hex cap screws, are one the strongest structural bolts that can be used today. While the typical grade 8 bolt has a tensile strength of 150,000 PSI, a grade 9 bolt has a tensile strength of 180,000PSI.
What kind of steel is used in ASTM A490 bolts?
ASTM A490 Bolts are intended for used in structural connections similar to ASTM A325/A325M but being produced from alloy steel instead of medium carbon steel, possed high tensile strength. There are two versions of this specification; ASTM A490 covering imperial sized high tensile bolting and A490M for metric sized bolts.
Which is the best ASTM A490 weathering fasteners?
Ferrobend is a outstandig performer in providing ASTM A490 Type 1 & Type 3 weathering steel bolts with zinc, cadmium or dacromet coatings with EN 10204 Type 3.1 Certification. Note* : Heavy Hex Structural Bolts 1″ and smaller and shorter than 2D are subject only to minimum and maximum hardness.
What’s the difference between ASTM A490 and A325?
In 2016, specifications A325 and A490 were officially withdrawn by ASTM and replaced by ASTM F3125. A325 and A490 heavy hex structural bolts are now grades under the new F3125 specification. There are also three connection types defined: SC: A slip critical connection. N: A bearing type connection where the threads are on the shear plane.
What is the ASTM standard for structural bolts?
ASTM A490 and ASTM A490M are ASTM International standards for heavy hex structural bolts made from alloy steel. The imperial standard is officially titled Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength, while the metric standard…