AISI Seamless Stainless Steel Tube

Aisi 304 316 321 410 round half hard Tube Stainless steel seamless pipes

Stainless Steel Pipes Introduction

First, the thicker the wall thickness of the product, the more economical and practical it is, and the thinner the wall thickness, the higher the processing cost; secondly, the technology of the product determines its limited performance, generally The precision of seamless steel pipe is low: uneven wall thickness, low brightness inside and outside the pipe, high cost of sizing, and there are pits and black spots on the inside and outside that are not easy to remove; third, its detection and shaping must be processed offline. Therefore, it reflects its superiority in terms of high pressure, high strength, and mechanical structural materials.

Stainless Steel Pipes Parameter

Stainless steel seamless pipe is a steel pipe that is resistant to weak corrosive media such as air, steam, and water, and chemically corrosive media such as acid, alkali, and salt. Also known as stainless acid-resistant steel pipe.

The corrosion resistance of stainless steel seamless pipes depends on the alloying elements contained in the steel. Chromium is the basic element for stainless steel to obtain corrosion resistance. When the chromium content in steel reaches about 12%, chromium and oxygen in the corrosive medium act to form a thin oxide film (self-passivation film) on the steel surface. , which can prevent further corrosion of the steel matrix. In addition to chromium, the commonly used alloying elements for stainless steel seamless pipes are nickel, molybdenum, titanium, niobium, copper, nitrogen, etc., to meet the requirements of various uses for the structure and properties of stainless steel.

Stainless steel seamless pipe is a kind of hollow long round steel, which is widely used in petroleum, chemical, medical, food, light industry, mechanical instrumentation and other industrial transportation pipelines and mechanical structural components. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also commonly used to produce various conventional weapons, barrels, shells, etc.

Common materials

201(1Cr17Mn6Ni5N), 202(1Cr18Mn8Ni5N), 301(1Cr17Ni7), 302(1Cr18Ni), 304(0Cr18Ni9), SS304, TP304, 304L(00Cr19Ni10), SS304L, TP304L, 321(1Cr18Ni9Ti), SS321, TP321, 316(0Cr17Ni12Mo2), SS316, TP316 , 316L(0Cr17Ni14Mo2), SS316L, TP316L, 310S(0Cr25N20), SS310S, P310S, etc.