B7M Stainless Rod

"B7" and "B7M" typically refer to ASTM A193 Grade B7 and ASTM A193 Grade B7M, respectively, which are not stainless steel grades but rather alloy steel grades used for high-temperature and high-pressure applications. These grades are commonly used in industries like petrochemical, oil and gas, and power generation. Here's a brief overview of both grades: ASTM A193 Grade B7: This grade is a chromium-molybdenum alloy steel with excellent tensile strength, hardness, and high-temperature properties. It is often used for high-temperature applications, such as in the manufacturing of bolts, studs, and other fasteners used in flanged connections and pressure vessels. ASTM A193 Grade B7M: Grade B7M is a modified version of Grade B7, with added restrictions on the carbon content. It is designed to provide improved resistance to sulfide stress corrosion cracking (SCC) in certain environments. As a result, it is used in applications where SCC resistance is a critical factor. It's important to note that both Grade B7 and Grade B7M are not stainless steel grades; they are alloy steel grades. If you specifically require stainless steel rods, you should consider stainless steel grades such as 304 or 316, which are known for their corrosion resistance properties.