| Standard: | ASTM A335 | Material: | ASTM A335 |
|---|---|---|---|
| Type: | Seamless | Technique: | Hot Rolled |
| Surface: | Black Painting | Application: | Boiler/Heat Exchanger/Oil&Gas |
| High Light: | High Temperature Alloy Steel Tube， Corrosion Resistance Alloy Steel Tube | ||
ASTM A335 P9
TONG CHUANG GROUP deal with Stainless Steel and tube already more than 33 years， every year sell more than 12000 tons of Stainless Steel and tube. Our client already cover more than 65 countries.
Description
ASTM A335 P9 is a standard specification for seamless ferritic alloy-steel pipe for high-temperature service. This pipe is commonly used in power plants， refineries， and other industrial applications where high temperature and pressure conditions are present.
The ASTM A335 P9 is made from a combination of chromium and molybdenum， which gives it excellent corrosion resistance and high temperature strength. It is available in various sizes and dimensions to suit different applications.
Some key features of ASTM A335 P9 include:
1. High temperature resistance: The pipe is designed to withstand high temperatures up to 600°C， making it suitable for use in high-temperature applications.
2. Corrosion resistance: The alloy composition of the pipe provides excellent resistance to corrosion， ensuring long-lasting performance in harsh environments.
3. Seamless construction: The seamless design of the pipe eliminates the risk of leaks and ensures a smooth flow of fluids.
4. Wide range of sizes: ASTM A335 P9 is available in a wide range of sizes and dimensions to meet the specific requirements of different applications.
ASTM A335 Gr P9 Composition
| C， % | Mn， % | P， % | S， % | Si， % | Cr， % | Mo， % |
| 0.015 max | 0.30-0.60 | 0.025 max | 0.025 max | 0.50 max | 4.00-6.00 | 0.45-0.65 |
ASTM A335 P9 Properties
| Tensile Strength， MPa | Yield Strength， MPa | Elongation， % |
| 415 min | 205 min | 30 min |
Heat Treatment Requirements
| P5， P9， P11， and P22 | |||
| Grade | Heat Treatment Type | Normalizing Temperature Range F [C] | Subcritical Annealing or Tempering Temperature Range F [C] |
| ASTM A335 P5 Pipe(b，c) | Full or Isothermal Anneal | ||
| Normalize and Temper | ***** | 1250 [675] | |
| Subcritical Anneal (P5c only) | ***** | 1325 – 1375 [715 – 745] | |
| ASTM A335 P9 Pipe | Full or Isothermal Anneal | ||
| Normalize and Temper | ***** | 1250 [675] | |
| ASTM A335 P11 Pipe | Full or Isothermal Anneal | ||
| Normalize and Temper | ***** | 1200 [650] | |
| ASTM A335 P22 Pipe | Full or Isothermal Anneal | ||
| Normalize and Temper | ***** | 1250 [675] | |
| ASTM A335 P91 Pipe | Normalize and Temper | 1900-1975 [1040 – 1080] | 1350-1470 [730 – 800] |
| Quench and Temper | 1900-1975 [1040 – 1080] | 1350-1470 [730 – 800] |
Tensile Requirements
| Seamless | |||||
| Alloy Steel ASTM A335/SA335 P-5 Pipe | Alloy Steel ASTM A335/SA335 P-9 Pipe | Alloy Steel ASTM A335/SA335 P-11 Pipe | Alloy Steel ASTM A335/SA335 P-22 Pipe | Alloy Steel ASTM A335/SA335 P-91 Pipe | |
| Tensile Strength， min.， psi | |||||
| ksi | 60 | 60 | 60 | 60 | 85 |
| MPa | 415 | 415 | 415 | 415 | 585 |
| Yield Strength， min.， psi | |||||
| ksi | 30 | 30 | 30 | 30 | 60 |
| MPa | 205 | 205 | 205 | 205 | 415 |
ASTM A335 Gr P9 Equivalent Material
Alloy Steel P9 Pipes equivalent
| ASTM | ASME | JIS G 3458 | UNS | BS | DIN | ISO | ABS | NK | LRS |
|---|---|---|---|---|---|---|---|---|---|
| A335 P9 | SA335 P9 | STPA 26 | S50400 | 3604 P1 629-470 | 2604 II TS38 |
| ASTM International | BSi – British Standards institute | Material |
|---|---|---|
| 3604/625 | 5% Cr 1/2% Mo | |
| 3604/629 | 9% Cr 1% Mo | |
| 3604/621 | 1 1/4% Cr 1/2% Mo | |
| 3604/620 | 1% Cr 1/2% Mo | |
| 3604/622 | 2 1/4% Cr 1% No |
Application
- Off-Shore Oil Drilling Companies
- Condensers
- Heat exchangers
- Power Generation
- Petrochemicals
- Gas Processing
- Specialty Chemicals
- Pharmaceuticals
- Pharmaceutical Equipment
- Chemical Equipment
- Sea Water Equipment
- Pulp and Paper Industry
