AISI317L Stainless Steel Tube&Pipe

317L stainless steel tube：

Introduction：

317L stainless steel pipe is a grade of stainless steel produced in accordance with American ASTM standards. Belonging to heat-resistant steel, 317L is equivalent to my country's 00Cr19Ni13Mo3 stainless steel pipe. 317 contains 18.0-20.0% of chromium, 11.0-15.0% of nickel and 3.0-4.0% of molybdenum.

Features：

317L stainless steel pipe is 0Cr19Ni13Mo3 ultra-low carbon steel, which has better intergranular corrosion resistance than 0Cr19Ni13Mo3

317L stainless steel tube heat treatment: solution treatment (℃) 1010-1150 quick cooling

Mechanical properties of austenitic steel of 317 stainless steel tube after solution treatment (GB/T4237-92)

Yield strength ≥177/MPa, tensile strength ≥480/MPa, elongation ≥35%, hardness test: HBS≤187, HRB≤90, HV≤200

Chemical composition of 317L stainless steel pipe: C≤0.08, Si≤1.00, Mn≤2.00, P≤0.035, S≤0.030, Ni=11~15, Cr=18.00~20.00, Mo=3~4

A kind of high alloy steel that can resist corrosion in the air or chemical corrosion media. Stainless steel has a beautiful surface and good corrosion resistance. It does not need to undergo surface treatment such as plating, but exerts the inherent surface properties of stainless steel. It is used in many A type of steel, usually called stainless steel. The representative performance is 13 chrome steel, 18-8 chrome nickel steel and other high alloy steel.

From the metallographic point of view, because the stainless steel contains chromium, a very thin chromium film is formed on the surface. This film is isolated from the oxygen intruding into the steel and plays a role in corrosion resistance.

In order to maintain the inherent corrosion resistance of stainless steel, steel must contain more than 12% chromium.

317L stainless steel pipe belongs to ultra-low carbon stainless steel. The price of this stainless steel is more expensive than ordinary stainless steel, but it is more expensive than 317L stainless steel plate.

The calculation formula is: (outer diameter—wall thickness)*wall thickness*0.02491=kg/m

Classification：

Compared with 304 stainless steel, 317L has stronger chemical corrosion resistance. In addition, 317L stainless steel has higher ductility, stress corrosion resistance, compressive strength and high temperature resistance. It is low carbon grade or l grade, which has anti sensitization performance during welding and heat treatment.

Product use：

It is used to manufacture main resistant pipes for industrial equipment such as synthetic fiber, petrochemical industry, textile, papermaking and atomic energy post-treatment. 317L is an austenitic stainless steel containing molybdenum, and its chemical corrosion resistance is better than 304. In addition, 317L has higher fracture stress strength and better ductility than conventional stainless steel in high temperature environment. It is low carbon grade and can provide anti sensitization effect in welding process and other heat treatment process.