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What is 317L stainless steel pipe
317L stainless steel pipe is a brand of stainless steel produced according to American ASTM standards. It belongs to heat-resistant steel, 317L is equivalent to 00Cr19Ni13Mo3 stainless steel pipe in China. 317 contains 18.0-20.0% chromium, 11.0-15.0% nickel and 3.0-4.0% molybdenum. 317L stainless steel pipe is 0Cr19Ni13Mo3 ultra-low carbon steel, which has better resistance to intergranular corrosion than 0Cr19Ni13Mo3. 317L stainless steel pipe heat treatment: solution treatment (℃) 1010-1150 rapid cooling 317 stainless steel pipe mechanical properties of austenitic steel 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 in the chemical corrosion medium. Stainless steel is a kind of steel that has beautiful surface and good corrosion resistance. It does not need to undergo surface treatment such as color plating, but gives full play to the inherent surface properties of stainless steel. It is used in many aspects of steel, usually called stainless steel. High alloy steels such as 13 chromium steel and 18-8 chromium-nickel steel are representative of properties.
From the perspective of metallography, because stainless steel contains chromium, it forms a very thin chromium film on the surface. This film separates the oxygen from the steel and plays a role in corrosion resistance. In order to maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 12% chromium. 317L stainless steel pipe belongs to ultra-low carbon stainless steel. The price of this kind of stainless steel is more expensive than that of ordinary stainless steel, but it is about the same as that of 904L stainless steel pipe.