Product Overview – ASTM A335 P5 Seamless Pipes
ASTM A335 P5 seamless pipes are chromium-molybdenum alloy steel pipes specifically developed for elevated temperature service. The presence of chromium improves oxidation resistance, while molybdenum enhances strength and creep resistance at high temperatures.
Grade P5 is commonly used in boiler systems, superheaters, heat exchangers, and high-pressure piping systems where consistent performance under thermal stress is essential.
These pipes are manufactured through a seamless process to ensure uniform structure, high strength, and the ability to withstand internal pressure. After manufacturing, the pipes undergo heat treatment, normalization, tempering, and inspection procedures to meet strict industrial standards.
Due to their excellent mechanical properties and heat resistance, ASTM A335 P5 seamless pipes are widely used in thermal power plants, oil refineries, chemical processing industries, and industrial piping networks.
Standard & International Identification - ASTM A335 P5 Seamless Pipes
Technical Specifications – ASTM A335 P5 Pipes
| Pipe Type: | Seamless Alloy Steel Pipes |
| Manufacturing Process: | Hot Rolling → Heat Treatment (Normalizing & Tempering) → Inspection |
| Outer Diameter: | 6 mm to 610 mm |
| Wall Thickness: | 0.5 mm to 60 mm |
| Length Options: | Single Random Length/ Double Random Length/ Custom Cut Length |
| Surface Finish: | Black Finish / Pickled Surface / Shot Blasted Surface |
| Testing & Inspection: | Hydrostatic Test,Ultrasonic Testing, Radiographic Testing,Hardness Testing |
| Certification : | EN 10204 3.1 / 3.2 MTC |
Third Party Inspection Available
All specifications are in accordance of ASTM A335 / ASME SA335 standards. Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.
Chemical Composition – ASTM A335 P5
(As per ASTM specification)
| Element | Max (%) |
|---|---|
| Carbon (C): | 0.15 – 0.25% |
| Manganese (Mn): | 0.30 – 0.60% |
| Silicon (Si): | Max 0.50% |
| Chromium (Cr): | 4.00 – 6.00% |
| Molybdenum (Mo): | 0.45 – 0.65% |
| Phosphorus (P): | Max 0.025% |
| Sulfur (S): | Max 0.025% | Iron : | Balance |
Note: This composition provides high temperature strength and oxidation resistance.
Mechanical Properties – ASTM A335 P5 Pipes
| Property | Minimum Value |
|---|---|
| Tensile Strength | 415 MPa |
| Yield Strength | 205 MPa |
| Elongation | 30% |
These properties ensure reliable performance under high temperature and pressure conditions.
High Temperature Performance & Strength
ASTM A335 P5 pipes are designed to perform in elevated temperature environments
Key performance benefits include:
Because of these characteristics, P5 alloy steel pipes are widely used in power generation and refinery operations.
Major Industrial Applications of ASTM A335 P5 seamless pipes
- ASTM A335 P5 seamless pipes are commonly used in:
- 🔸Thermal Power Plants
- 🔸Boilers and Superheaters
- 🔸Oil and Gas Refineries
- 🔸Petrochemical Plants
- 🔸Heat Exchanger Systems
- 🔸High Temperature Piping Systems
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