ASTM A335 Seamless P9 Ferritic Alloy Steel Boiler Pipe
ASTM A335 Seamless P9 Ferritic Alloy Steel Boiler Pipe
YUHONG Group offers ASTM A335 / ASME SA335 P9 SMLS ferritic alloy steel pipes and we sell these pipes in more than 70 countries up to now. This specification covers nominal wall and minimum wall seamless ferritic alloy-steel pipe intended for hightemperature service. Pipe ordered to this specification shall be suitable for bending, flanging (vanstoning), and similar forming operations, and for fusion welding.
A335 P9 exhibits excellent strength at high temperatures, making it suitable for applications involving high temperature service conditions. It also has high corrosion resistance, so this is very important in applications where pipes are exposed to corrosive environments or fluids.
A335 P9 has good creep resistance. Creep is the tendency of a material to permanently deform under mechanical stress, especially at high temperatures. This feature ensures the long-term reliability of the pipeline under high temperature and high pressure conditions.
Besides, compared to some other high-alloy materials, A335 P9 offers a good balance of performance and cost-effectiveness, making it a popular choice for a variety of industrial applications.
Specifications
| Standard | ASTM A335 / ASME SA335 | ||
| Name of Material | Seamless Ferritic Alloy pipes | ||
| Keywordas | Heat exchanger pipes; Seamless steel pipes; Superheater pipes | ||
| Size | 12.7-1219mm O.D.; 0.06-2.5mm W.T.; required by clients | ||
| Length | Less than 70ft, specific or random | ||
Test Required
Chemical Analysis/ Mechanical Properties/ Hardness Test/ Grain Size
Flaring Test/ Tension Test/ Hydrostatic Test / Nondestructive Electric Test,etc
Chemical Composition max % P9 / K90941
| Carbon | Manganese | Phosphorus | Sulfur | Silicon | Chromium | Molybdenum |
| 0.15 | 0.3-0.6 | 0.025 | 0.025 | 0.25-1 | 8-10 | 0.9-1.1 |
Mechanical Property
| Yield Strength | Tensile Strength | Elongation (%) | Transverse |
| 30min ksi / 205min MPa | 60min ksi / 415min MPa | 30% min | 20% min |
Heat Treatment Requiirements P9
Heat Treat Type : Full or isothermal anneal or normalize and temper
Subcritical Annealing or Tempering Temperature, min or range °F [°C] : 1250 [675]
Applications Industries
Boiler and Heat Exchanger
High-Temperature Services
Petrochemicals and Refining
Thermal Power Plants
Fabrication and Construction
Energy Field- Nuclear Power Generation,Tidal Power Generation,etc.
Environmental Protection Field- Gas Processing,Waste Water Treatment,etc.
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