ASTM A167 Type 304 Heat-Resisting Plate Introduction:
ASTM A167 standard is a specification that covers stainless steel heat-resisting chromium-nickel steel plate, sheet, and strip. This type of stainless steel is renowned for its high-temperature resistance, making it suitable for various applications where exposure to elevated temperatures is a critical factor.
ASME SA 167 Grade 304 Heat-Resisting Plate is a high-temperature, corrosion-resistant stainless steel alloy that is commonly used in a wide range of industrial and commercial applications. This type of stainless steel 304 plate is made from austenitic stainless steel, which provides excellent thermal conductivity, high-temperature strength, and exceptional resistance to most forms of corrosion, including pitting and crevice corrosion.
ASTM A167 304 Stainless Steel Plate Heat Resistance:
ASTM A167 UNS S30400 sheet is recognized for its exceptional resistance to high-temperature environments. It retains its structural integrity and mechanical properties at elevated temperatures, making it suitable for use in heat exchangers, annealing covers, and other applications where heat resistance is crucial.
1.4301 AISI 304 Plate Mechanical Properties:
- Tensile Strength (σt): 75,000 psi (minimum)
- Yield Strength (σy): 30,000 psi (minimum)
- Elongation (δ): 40% (in 2 inches)
These mechanical properties ensure the material can withstand mechanical stresses even in high-temperature conditions.
ASTM A167 Stainless Steel Corrosion Resistance:
The chromium content in UNS S30400 stainless steel provides excellent corrosion resistance, making it resistant to a wide range of corrosive environments. This makes it suitable for applications in chemical and petrochemical industries.
Alloy 304 Stainless Steel Sheet Applications
The ASTM A167 Type 304 Heat-Resisting Plate is widely used in various industries, including chemical processing, power generation, oil refining, and petroleum exploration. SUS 304 stainless steel high-temperature resistance makes it an ideal choice for applications that require high-temperature and high-pressure conditions, such as heat exchangers, boilers, and condensers. It is also often used in the food and beverage industry because of its excellent resistance to corrosion caused by acidic and alkaline substances.
ASTM A240 vs ASTM A167
ASTM A240 and A167 are two standards for the specification of stainless steel plates. The main differences between them lie in their mechanical properties, chemical composition, formability, and fabrication. ASTM A240 requires higher chromium content than A167 does, with values ranging from 17% to 20%. In terms of formability, A240 has superior tensile strength compared to A167. In regard to fabrication however, ASTM A167 is easier as it has tighter tolerances on plate thickness. As a conclusion, A240 provides more versatile mechanical properties while A167 offers better formability through tighter gauge tolerance limits.
