Fatigue Performance of Materials
Fatigue Performance of Materials 1. Fatigue Phenomenon Fatigue and fracture are major causes of failure in engineering structures. Under repeated loading, structural materials can experience brittle failure below their static load strength, necessitating consideration of fatigue strength in design. Since the 19th century, extensive research on fatigue failure has led to rich knowledge regarding fatigue observation, life prediction, and design. [...]
Analysis and Preventive Measures of Defects in Tube-Sheet Forgings
Analysis and Preventive Measures of Defects in Tube-Sheet Forgings Introduction Large free forging equipment is a symbol of industrial development, and the production of large forgings plays a vital role in national economic construction, defense, and cutting-edge scientific applications. As industries shift towards large-scale, high-standard equipment manufacturing, the demand for high-quality large forgings has increased. Among these, tube-sheet forgings are [...]
Stainless Steel Pipe De-greasing, Cleaning and Passivation
Stainless Steel Pipe De-greasing, Cleaning and Passivation I. De-greasing of Stainless Steel Pipes Before cleaning and passivating stainless steel pipes, they must undergo de-greasing to remove residual oils from the inner walls due to processing. Typically, industrial alcohol or dichlorodifluoromethane (CCL2F2) is used as de-greasing agents in pharmaceutical water systems. Most stainless steel pipes used in pharmaceutical water systems are [...]
What Does NACE Mean?
What Does NACE Mean? What Are NACE Standards and Their Applications in the Steel Pipe Industry? Annual Direct Economic Loss Due to Metal Corrosion Worldwide Every year, the direct economic loss caused by metal corrosion worldwide is estimated to be between 700billionand700billionand1 trillion. In the United States alone, corrosion losses amount to over $300 billion annually, accounting for 4.2% of [...]
What are the heat treatment processes for 42CrMo steel pipes?
What are the heat treatment processes for 42CrMo steel pipes? What is the corresponding hardness? 42CrMo is a commonly used alloy structural steel known for its excellent mechanical properties and heat treatment plasticity. It is widely applied in the manufacturing of mechanical components and engineering machinery. Heat treatment is one of the critical processes that enable 42CrMo to achieve superior [...]
What is Anti-Hydrogen Sulfide Corrosion Pipe Steel?
What is Anti-Hydrogen Sulfide Corrosion Pipe Steel? In the petrochemical industry, hydrogen sulfide (H2S) corrosion is prevalent and highly hazardous. By analyzing the mechanism of H2S corrosion, this article introduces the forms of corrosion caused by wet H2S, including hydrogen blistering, hydrogen-induced cracking (HIC), sulfide stress corrosion cracking (SSCC), and stress-assisted hydrogen-induced cracking. It highlights the relationship between the mass [...]