What is A182 F316 standard
1. Material classification and standards
Definition of grade: A182 F316 belongs to American Standard forged stainless steel, specialised in the manufacture of valves, flanges and piping components under high temperature environment.
Executive standard: ASTM A182/A182M-2018, the material code is F316, where 'F ' stands for Valve Application Scenario
2. Chemical composition
| composition | Content |
|---|---|
| C | ≤0.08% |
| Mn | ≤2.00% |
| Cr | 16.0%~18.0% |
| Ni | 10.0%~14.0% |
| Mo | 2.0%~3.0% |
| P/S | ≤0.045% / ≤0.030% |
3. Core properties
Corrosion resistance: Molybdenum (Mo) austenitic stainless steel with excellent resistance to sulphuric acid corrosion, especially suitable for high temperature environments with sulphuric acid concentrations <15% or >85%.
High temperature performance: After solid solution treatment (≥1040℃), it has good high temperature strength and oxidation resistance.
Processing performance: support forging process, suitable for the manufacture of complex structures (such as flanges, valves).
4. Application Scene
Industrial valves: high-pressure valves for controlling fluid media in petrochemical and electric power systems.
Pipe connectors: high-temperature flanges, pump bodies and other pressure-bearing parts.
Special environment: sulfuric acid production equipment, dyeing equipment and other corrosive conditions.
5. Differences from other materials
| Terms | A182 F316 | Normal 316 stainless steel |
|---|---|---|
| Manufacturing process | Forging (forgings) | Rolled (bar) or cast |
| Standard | ASTM A182(For forgings) | ASTM A276(bar) |
| carbon content | ≤0.08% | ≤0.08%(same grade) |
| Application | High pressure valves, flanges | General-purpose structural components, decorative materials |
A182 F316 is an American Standard forged austenitic stainless steel, with high temperature and sulphuric acid corrosion resistance as the core advantage, specialised in high pressure valves, flanges and other key pressure components. Its chemical composition and processing technology in accordance with ASTM A182 standards, and ordinary 316 stainless steel (such as bar ASTM A276 316) compared to the more focused on high temperature and high pressure mechanical properties and long-term stability of the environment.
