ASTM A193 B7 is a high-strength alloy steel bolting material commonly used for high-temperature and high-pressure applications. Its equivalent materials typically include chromium-molybdenum steels with similar mechanical properties, such as tensile strength, hardness, and heat resistance. These equivalents are widely applied in petrochemical, oil and gas, and power generation industr... https://vidyafasteners.com/astm-a193-grade-b7-fasteners-manufacturer-india/