I.Chemical code for metal surface treatment1.1.Pickling: The Art of Corrosion and RebirthProcess essence: using 15%-20% nitric acid and 3%-5% hydrofluoric acid mixed solution, at 50-60 ℃ for 3-20 minutes of immersion, to remove 0.01-0.03mm surface layer of metal--Typical case:A German manufacturer o

I. Eternal corrosion-resistant genes: the nature of rust prevention from the molecular structure 1.1The Magic Barrier of ChromiumWhen the chromium content in stainless steel is ≥10.5%, a Cr₂O₃ oxide film with a thickness of 2-3 μm is formed spontaneously. This dynamic repair film layer can control t

I. Standard system and naming logicSUS316L (Japanese Standard JIS G4303)Ultra-low carbon austenitic stainless steel defined under the Japanese Industrial Standard System, the suffix “L” specifically refers to the carbon content of ≤ 0.030% of the low carbon version, suitable for welding after the ne

Carbon content exceeds the standard on the performance of stainless steel seamless pipe impact mechanism and coping strategies

I. Comparison of material core differences1.1Chemical Composition and Metallurgical Standards 2205 Duplex Steel (UNS S32205)Typical composition is 22% chromium, 5% nickel, 3% molybdenum, and 0.15% nitrogen in accordance with ASTM A790/A789. It has a PREN value (Pitting Resistance Equivalent) of ≥35

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Introduction: When "Heat Resistance" Is Non-Negotiable, Choosing the Right Material = Armor for Your EquipmentIn high-temperature industrial environments like chemical processing, heat treatment, and energy production, stainless steel pipes act as the "blood vessels" of equipment. They must withsta

Stainless Steel Pipe Reasons for Wall Thickness Differences in Large Size Pipes IntroductionIn the field of industrial piping, the Sch (Schedule Number) grade is the engineer's “universal code”, which defines the pipe's pressure capacity and safety boundaries with a series of numbers. However, when

What Is The Difference of Chemical Component between 316L And 316TI？

DefinationTitanium alloy steel pipe is a kind of pipe made of titanium alloy material, with high mechanical properties, excellent stamping performance, and can be welded in various forms, welded joints strength up to 90% of the strength of the base metal, and good cutting and processing performance.