F5 1 stainless steel is developed on the basis of Swedish SAF2205, and it is a commonly used steel grade in bidirectional steel in the world at present. It is resistant to the environment containing solidified hydrogen, carbon dioxide and chloride, can be formed by cold working and hot working, and has good welding performance. It is suitable to replace 304 and 3 16 as structural materials.

1.F5 1 stainless steel corresponding brand: 1, GB-T standard: digital brand: S22253, new brand: 022Cr22Ni5Mo3N, old brand: 00cr22ni5mo3n, 2. American standard: ASTMA standard: S3 1803, SAE standard.

4. German DIN standard:1.4462,5. European EN standard: X2CrNiMo22-5-3 5-3,

X2CrNiMoN22-5-3

Chemical composition of stainless steel F5 1: (1) C: ≤ 0.030, (2) Si: ≤ 1.00, (3) Mn: ≤ 2.00, (4) P: ≤ 0.030, (5) S:.

Three. Physical properties of stainless steel F5 1: ① Density (20℃)

/kg/dm3:7.8, ② melting point /℃: 1420 ~ 1462, ③ specific heat capacity (0~ 100℃)/kg/(kg.k):0.5, ④ thermal conductivity/w/(m).

100℃-:19,5] thermal conductivity /w/(m.k)

500℃-:

23, ⑥ linear expansion coefficient

/( 10-6/k)

0~ 100℃: 13.7, ⑦ linear expansion coefficient /( 10-6/k)

0~56 1℃:

14.7, 8 resistivity (20℃)

/(ω. mm2/m): 0.88,9 longitudinal elastic modulus.

(20℃)/GPa: 186, magnetism: yes. ?

Four. Mechanical properties of F5 1 stainless steel: ⑴ Delivery status: bar solution treatment, plate solution pickling, ⑴ tensile strength (RM/MPa): 655, ⑴ elongation (RP 0.2/MPa): 450, ⑴ elongation a/%:30, and ⑸ area shrinkage (Z/%):

Verb (abbreviation of verb) stainless steel F5 1 heat treatment: ① hardness HBW≤: solid solution, hardness HRB ≤:-, ② heating temperature: 950~ 1200, ③ heating mode: rapid cooling.

F5 1 Stainless steel application field: manufacturing pressure-bearing equipment such as oil well pipes, chemical storage tanks, heat exchangers, condensation coolers, etc., which are prone to pitting corrosion and stress corrosion.