2205 chemical composition of duplex stainless steel C Si Mn P S Cr Ni Mo N
Standard 0.03 x 1.00 x 2.00 x 0.04 x 0.03 21.0 x 24.0 4.5 x 6.5 2.5 x 3.5 0.08 x 0.2
General 0.025 0.6 1.5 0.026 0.001 22.5 5.8 3.0 0.162205 Duplex stainless steel National standards: NAS 329J3L, UNS S32205 / S31803, DIN / EN 1.4462, ASTM A240, ASME SA-240; 1. Name
The S31803 duplex stainless steel pipe is a medium alloy duplex stainless steel with good chloride stress resistance. The representative grade of the mean alloy type is UNS S31803 (22Cr-5Ni-3Mo-0.15N); S31803 duplex steel pipe is used in three types of duplex steel (duplex 2205 stainless steel pipe, 2507 duplex stainless steel pipe, duplex stainless steel seam S31803 tube) is widely used.
2. Chemical composition of S31803 duplex stainless steel pipe
C ≦ 0.030; If ≦ 1.00; Mn ≦ 2.00; P ≦ 0.030;
S: 0.020; Ni: 4.50 x 6.50; Cr: 21.00 x 23.00; Mo: 2.50 x 3.50; N: 0.08 x 0.20
3. Features of S31803 Duplex Stainless Steel Pipe
PREN value 32 x 33
The corrosion resistance of the UNS S31803 mean alloy is between AISI 316L and 6% Mo+N austenitic stainless steel.
The elastic limit is approximately twice as strong as austenitic stainless steel 18-8.
Fourth, the main purpose of the S31803 stainless steel pipe:
Neutral Chloride Environment - Oil Refining Industry - Petrochemical and Chemical Industry - Chemical Industry Pipelines - Oil & Gas Industry - Pulp and Paper Industry - Chemical Fertilizer Industry - Urea Industry - Phosphate Fertilizer Industry - Seawater Environment - Environmental Protection Industry and Energy - Light Industry and Food Industry - Equipment for the Food and Pharmaceutical Industry - High-Strength Structural Parts
