193 Grade B8 Class 2 Specification for high tensile bolts, screws, stud bolts, anchor bolts, threaded rods and other externally threaded fasteners, made from 304 stainless steel. ASTM A193 Grade B8 Class 2 is a standard material specification for corrosion resistant austenitic stainless steel fasteners, for use in high tensile, high temperature and special purpose applications such as pressure piping & pressure vessels bolting. Grade B8 Class 2 is a carbide-solution-treated & strain hardened 304 stainless steel with minimum tensile requirement of 125 ksi, yield 100 ksi and maximum hardness of 35 HRC. This specification covers requirements for chemical composition, mechanical
properties, hardness, heat-treatment and recommended nuts-washers for Grade B8 Class 2 Fasteners.
Our A193 Class 2 bolts are stamped and MTR’s (Material Test Reports) are available.
Our Stainless Class 2 bolts cost about half of what our competitors charge.
Heat treated conditions for the ferritic materials include:
- normalized & tempered
- quenched & tempered.
Heat treated conditions for the austentic stainless steels include:
- Carbide solution treated (Class 1)
- Carbide solution treated after finishing (Class 1A)
- Carbide solution treated nitrogen-bearing stainless steels (Class 1B & 1C)
- Carbide solution treated by cooling rapidly from the rolling temperature (Class 1D)
- Carbide solution treated and Strain-hardened (Classes 2, 2B, and 2C)
The ASTM A193 specification of Grade B8M is a stainless steel material that is highly resistant to corrosion and widely used for making different fasteners. The ASTM A193 Grade B8M Bolts have excellent mechanical properties, such as high tensile strength. Therefore, they are perfect to be used in special applications like pressure piping and bolting the pressure vessel. The ASTM A193 B8M Class 2 Hex Bolts need to be strain hardened, with a minimum tensile strength of 100 ksi and yield strength of 50 ksi. The stainless steel of the given specification can also be carbide treated for enhancing its corrosion resistance properties. The ASTM A193 Grade B8M Stud Bolts are quite similar to the bolts made of Grade 8, of the same specification. However, the difference is that the former is made from 316 stainless steel, whereas the latter is from 304 stainless steel.
We are one of the top manufacturers of ASTM A193 Grade B8M Threaded Rod that can have any of the given standards- ASME B18.31.3, B18.31.4M, DIN 975 & DIN 976. The threads in our fastener rods are coarse and fine. They are made with full compliance to the ASTM A193 specification and grade 8M. We manufacture rods of class 1 and 2 of the given material specification. Clients can get different types of fasteners of the given grade along with ASTM A193 Grade B8M Type 316 Hex Nuts at the best prices from us.
Our primary focus lies in manufacturing the best quality ASTM A193 Grade B8M2 Class 2B Socket Head Cap Screws, which will suit our client’s requirements. Durability and longevity are the highlights of our products. Our A193 B8M CL1 And CL2 Flat Washer are quality-checked and certified. In addition, we follow the standard shipping procedures for safe doorstep deliveries unless otherwise is specified by our esteemed customers.