Is Grade 5 stronger than A325?
As a comparison, the ASTM A325 bolt is roughly equivalent to the SAE grade 5. A grade 8 bolt would be one that meets ASTM A490 standards. The A325 bolt strength, or SAE grade 5 bolt strength, is usually used for structural bolting projects.
What is ASTM A325 Type 1?
ASTM A325 Type 1 is a standard material specification for high strength carbon steel fasteners, for use in high tensile structural bolting and other general purpose applications.
What is the equivalent to A325 bolt?
The grade A325 equivalent for TC bolts is grade F1852. The grade A490 equivalent for TC bolts is grade F2280. Each bolt is preassembled with an ASTM F436 flat washer and the appropriate heavy hex nut and sold as an assembly.
What is the hardest grade bolt?
grade 8
Commercial-grade 8 bolts are the strongest option available. They’re made from medium carbon alloy steel and have markings that include six raised dashes. The psi of the bolt is 150,000, meaning that it can withstand great deals of pressure because of the way it was quenched and tempered.
What is SAE J429?
SAE J429 is a Society of Automotive Engineers specification for fasteners. SAE J429 covers fasteners sizes up to 1-1/2″ inclusive. Used in automotive and related industries, these fasteners can be found in small quantities in automotive and home improvement stores.
What replaced ASTM A325?
ASTM F3125
In 2016, ASTM officially withdrew specification A325 and replaced it with ASTM F3125. To minimize confusion, bolt head markings are unchanged and the designation A325 is retained as a grade name within the new standard. In 1951, A325 bolts were recognized as equivalent to a hot driven ASTM A141 rivet.
What does 8.8 mean on the head of a bolt?
So, in English, a PC 8.8 bolt is a bolt with a nominal tensile strength of 800 MPa and a nominal yield strength that is 80% of the bolt’s nominal tensile strength, or 640 MPa.
What kind of bolts are ASTM A325 square?
These ASTM A325 Square BOLTS is mass-produced from the soaring grade of material and urbane technology in compliance by means of international standards. We engraved a position of an acclaimed and leading manufacturer of ASTM A325 Hex BOLTS, which are non – corrosive in nature and excellent anode of electricity.
Can a ASTM A325 be specified for any grade?
It is common for ASTM A325 to be specified by engineers based on the strength requirement of the grade, but often times the size availability and allowed configuration is not considered.
Can you substitute an ASTM A325 for a hex head?
Although it is recommended that a user confirms the standard hex is acceptable before substituting for an A325, they may be a viable option since they are readily available in longer lengths than a standard size A325s. In the past ASTM A325 was specific to heavy hex head bolts with shorter than standard thread lengths only.
What are the chemical properties of the A325?
A325 Type 1 Chemical Properties Heat Analysis 120ksi, % 150ksi, % Carbon 0.30 – 0.52 0.30 – 0.48* Manganese 0.60 min 0.60 min Phosphorus 0.035 max 0.035 max Sulfur 0.040 max 0.040 max