A182-F11, A182-F12, and A182-F22 are all grades of alloy steel that are commonly used for various industrial applications, particularly in high-temperature and high-pressure environments. These grades have different chemical compositions and mechanical properties, making them suitable for different types of applications.They are mainly used in pressure systems,included are flanges,fittings,valves and similar parts,and widely used in the manufacture of petrochemical, coal conversion, nuclear power, steam turbine cylinders, thermal power and other large-scale equipment with harsh operating conditions and complex corrosive media.
F11 STEEL CHEMICAL COMPOSITION
| Level | Grade | C | Si | Mn | P | S | Cr | Mo |
| Class 1 | F11 | 0.05-0.15 | 0.5-1.0 | 0.3-0.6 | ≤0.03 | ≤0.03 | 1.0-1.5 | 0.44-0.65 |
| Class 2 | F11 | 0.1-0.2 | 0.5-1.0 | 0.3-0.6 | ≤0.04 | ≤0.04 | 1.0-1.5 | 0.44-0.65 |
| Class 3 | F11 | 0.1-0.2 | 0.5-1.0 | 0.3-0.6 | ≤0.04 | ≤0.04 | 1.0-1.5 | 0.44-0.65 |
F12 STEEL CHEMICAL COMPOSITION
| Level | Grade | C | Si | Mn | P | S | Cr | Mo |
| Class 1 | F12 | 0.05-0.15 | ≤0.5 | 0.3-0.6 | ≤0.045 | ≤0.045 | 0.8-1.25 | 0.44-0.65 |
| Class 2 | F12 | 0.1-0.2 | 0.1-0.6 | 0.3-0.8 | ≤0.04 | ≤0.04 | 0.8-1.25 | 0.44-0.65 |
F22 STEEL CHEMICAL COMPOSITION
| Level | Grade | C | Si | Mn | P | S | Cr | Mo |
| Class 1 | F22 | 0.05-0.15 | ≤0.5 | 0.3-0.6 | ≤0.04 | ≤0.04 | 2.0-2.5 | 0.87-1.13 |
| Class 3 | F22 | 0.05-0.15 | ≤0.5 | 0.3-0.6 | ≤0.04 | ≤0.04 | 2.0-2.5 | 0.87-1.13 |
F11/F12/F22 STEEL MECHANICAL PROPERTY
| Grade | Level | Tensile Strength,Mpa | Yield Strength,Mpa | Elongation,% | Reduction of Area,% | Hardness,HBW |
| F11 | Class 1 | ≥415 | ≥205 | ≥20 | ≥45 | 121-174 |
| Class 2 | ≥485 | ≥275 | ≥20 | ≥30 | 143-207 | |
| Class 3 | ≥515 | ≥310 | ≥20 | ≥30 | 156-207 | |
| F12 | Class 1 | ≥415 | ≥220 | ≥20 | ≥45 | 121-174 |
| Class 2 | ≥485 | ≥275 | ≥20 | ≥30 | 143-207 | |
| F22 | Class 1 | ≥415 | ≥205 | ≥20 | ≥35 | ≤170 |
| Class 3 | ≥515 | ≥310 | ≥20 | ≥30 | 156-207 |
The primary differences between A182-F11, A182-F12, and A182-F22 alloy steels lie in their chemical compositions and resulting mechanical properties. A182-F11 offers good performance at moderate temperatures, while A182-F12 and A182-F22 provide higher strength and resistance to corrosion and high-temperature creep, with A182-F22 generally being the strongest and most corrosion-resistant among the three.
Post time: Sep-04-2023