What is a B8 stud?

Grade B8 stud bolts are made of AISI 304 stainless steel. These type of fasteners are made with austenitic stainless steel and require carbide solution treatment.

What grade is a B8 bolt?

ASTM A193 Grade B8 Raw Material

Grade Tensile Class Raw Material Description
B8 Class 1 AISI 304 Stainless Steel, Carbide Solution Treated
B8 Class 2 AISI 304 Stainless Steel, Carbide Solution Treated and Strain Hardened

What is B8 bolt material?

ASTM A193 Grade B8 Class 1 bolts and threaded studs are manufactured from AISI 304 stainless steel. Type 304 is the most common grade of stainless steel used in the fastener industry.

What is Grade B8 stainless?

Grade B8 is a heat-treated, work-hardened (or both) austenitic stainless steel further divided into class 1, class 2 & class 2B, each having a distinguished tensile strength.

Are B8 bolts stainless steel?

These Grade B8 screws are made from 18-8 stainless steel and have good chemical resistance. They may be mildly magnetic. Also known as pressure bolts, these screws meet the high-pressure and high-temperature regulations of ASTM A193 and are used to secure pressure tanks, valves, and flanges.

What is the difference between B7 and B8 bolts?

With a minimum tensile strength of 150 ksi and a minimum yield of 130 ksi, Grade 8 has a higher tensile and yield strength than other steel grades such as Grade 5 and B7. It is also quenched and tempered at 800 F leading to its strength. Grade 8 has 0.28-0.55% carbon, 0.030% max phosphorus, and 0.050% max sulfur.

What is stronger grade 8 or B7?

Grade B7 provides higher strength than Grade 5 bolts with greater ductility than Grade 8. Grade B7 is an excellent choice when a fastener that is stronger than Grade 5 is needed with better fatigue and toughness than a Grade 8.

Is B8 stainless?

Grade B8 bolts are made from type 304 stainless steel, while Grade B8M bolts are made from a more corrosion-resistant type 316 stainless steel.

Are Grade 8 bolts heat treated?

Grade 8 alloy steel bolts have a tempering temperature of 800° F, which allows their use at higher temperatures.

What is the difference between B7 and b8 bolts?