Astm SA335 P1 P5 Tube
Material Specification
| Specification | Description |
| ASTM SA335 | Standard specification for seamless ferritic alloy-steel pipe for high-temperature service |
| P1 | Grade P1 seamless ferritic alloy steel pipe |
| P5 | Grade P5 seamless ferritic alloy steel pipe |
Key Features
- Seamless ferritic alloy-steel pipe
- Designed for high-temperature service
- Excellent tensile and impact strength
- Corrosion and oxidation resistance
Good formability and weldability
Chemical Composition
| Element | P1(%) | P5(%) |
| Carbon (C) | 0.10-0.20 | 0.15 max |
| Manganese (Mn) | 0.30-0.80 | 0.30-0.60 |
| Phosphorus (P) | 0.025 max | 0.025 max |
| Sulfur (S) | 0.025 max | 0.025 max |
| Silicon (Si) | 0.10-0.50 | 0.50 max |
| Chromium (Cr) | 0.45-0.65 | 4.00-6.00 |
| Molybdenum (Mo) | - | 0.45-0.65 |
Mechanical Properties
| Property | P1 | P5 |
| Tensile Strength | 380-550 MPa | 415-585 MPa |
| Yield Strength | 205 MPa min | 205 MPa min |
| Elongation (%) | 30 min | 30 min |
| Hardness (HB) | 163 max | 179 max |
Steel Grade
The steel grade of ASTM SA335 P1 and P5 tubes is as follows:
- ASTM A213 T1
- ASTM A335 P1
ASTM A335 P5
Application
Astm SA335 P1 and P5 tubes find application in various industries, including:
- Power Generation
- Petrochemicals
- Refineries
- Oil & Gas
- Heat Exchangers
- Boilers
High-temperature pipelines
Possible Alternative Grades
Some possible alternative grades that can be considered for similar applications include:
- ASTM A335 P9
- ASTM A335 P11
- ASTM A335 P22
- ASTM A335 P91
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